TABLE OF CONTENTS

EXPLANATORY NOTE

This Amendment No. 1 on Form 10-K/A (this “Amendment”) amends the RigNet, Inc. (“we”, “us”, “our” or the “Company”) Annual Report on Form 10-K for the fiscal year ending December 31, 2020, as filed with the Securities and Exchange Commission (“SEC”) on March 15, 2021 (the “Original Filing”). We are filing this Amendment for the sole purpose of providing the information required by Items 10 through 14 of Part III of Form 10-K. This information was previously omitted from our Original Filing in reliance on General Instruction G(3) to Form 10-K, which permits the information in the above-referenced items to be incorporated in our Form 10-K by reference to our definitive proxy statement if such statement is filed within 120 days after the end of our fiscal year covered by the Original Filing. The reference on the cover page of the Original Filing to the incorporation by reference to portions of our definitive proxy statement into Part III of the Original Filing is hereby deleted.

In accordance with Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), Part III, Items 10 through 14 of the Original Filing are hereby amended and restated in their entirety. In addition, in connection with the filing of this Amendment and pursuant to the rules of the SEC, we are including with this Amendment new certifications of our principal executive officer and principal financial officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Accordingly, Item 15 of Part IV has also been amended and restated to reflect the filings of these new certifications. Because no financial statements are contained within this Amendment, we are not including certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Except as otherwise noted, this Amendment speaks as of the filing date of the Original Filing and reflects only the changes to the cover page, Items 10 through 14 of Part III and Item 15 of Part IV. No other information included in the Original Filing, including the information set forth in Part I and Part II, has been modified or updated in any way, and we have not updated the disclosures contained herein to reflect any events which occurred subsequent to the filing of the Original Filing or to modify the disclosure contained in the Original Filing other than to reflect the changes described above.

Table of Contents

Glossary

PART I

Item 1.Business

For convenience in this Annual Report on Form10-K, “RigNet”, the “Company”, “we”, “us”, and “our” refer to RigNet, Inc. and its subsidiaries taken as a whole, unless otherwise noted.

Overview

We are a global technology company that provides customized data and communications services. Customers use our private networks to manage information flows and execute mission-critical operations primarily in remote areas where conventional telecommunications infrastructure is either unreliable or unavailable. We provide our clients what is often the sole means of communications for their remote operations. On top of and vertically integrated into these networks we provide services ranging from fully-managed voice, data, and video to more advanced services including: cyber security threat detection and prevention; applications to improve crew welfare, safety or workforce productivity; and a real-timeAI-backed data analytics platform to enhance customer decision making and business performance.

We deliver advanced software, optimized industry solutions, and communications infrastructure that allow our customers to realize the business benefits of digital transformation. Historically, our primary focus has been on customers in the upstream exploration and production segment of the energy industry, including offshore drilling rigs and production facilities. In recent years, we have expanded our services to include onshore drilling rigs and have increased our service offerings across the energy value chain to provide solutions to midstream and downstream customers where systems integration and IoT solutions are key elements. In addition, we have created channel partners around the world, creating opportunities to sell our industry-leading security, IoT, and machine-learning solutions outside of our traditional energy-focused markets.

Our business operations are divided into the following segments:

For financial information about our reportable segments, see Note 12 — “Segment Information” in our consolidated financial statements included in this Annual Report on Form10-K

Managed Communications Services (MCS)

As of December 31, 2018, MCS represented 71.8% of our total revenues. We were the primary provider of remote communications and collaborative services to approximately 500 customers reaching over 1,300 remote sites located in approximately 50 countries on six continents. For the year ended December 31, 2018, our revenue generated from countries outside of the U.S. represented 71.2% of MCS revenue. Key aspects of our services include:

Global MCS Site Counts

We report the number of sites serviced by MCS on a regular basis and currently define sites based on four categories which include Offshore Drilling Rigs, Offshore Production sites, Maritime, and Other sites, which includes U.S. onshore drilling and production sites, completion sites,man-camps, remote offices, and supply bases, as well as offshore-related supply bases, shore offices, tender rigs, and platform rigs. The MCS site count does not include IoT sites. As of December 31, 2018, we provided MCS to a total of 1,323 U.S. andnon-U.S. sites, a 13.0% increase from 1,171 sites served as of December 31, 2017. Site counts fluctuate with industry conditions and are influenced by oil price, customer capital spending, and other factors. When we provide services for multiple customers at one location, for example, to the drilling contractor, exploration and production operator, and other service companies, we count this as one site. The table below provides site count data as of December 31 of the respective year.

We procure bandwidth from independent commercial satellite-services operators and terrestrial wireless and landline providers to meet the needs of our customers forend-to-endIP-based communications. This allows RigNet to provide hybrid network solutions which greatly improves networkup-time by using multiple and diverse sources of bandwidth. We generally own the network infrastructure and communications equipment we install at remote sites as well as equipmentco-located in third-party teleport facilities and data centers, all of which we procure through various equipment providers. By owning the network infrastructure and communications equipment on the customer premises, we are better able to select the optimal equipment for each customer solution as well as ensure the quality of our services.

Applications &Internet-of-Things (Apps & IoT)

Apps & IoT is our fastest growing segment, and is leading our claim to value for our customers’ digital transformation. In addition to already representing 10.8% of full year 2018 revenue, the value proposition from Apps & IoT is allowing us to gain share in the MCS market for energy.

The energy sector has embraced “Digital Transformation”, a term that encompasses using technology to significantly reduce human operational process time and increase operating margins. Digital transformation typically uses a combination of Industrial IoT (Internet of Things) combined with powerful Artificial Intelligence (AI) backed predictive analytics to monitor and optimize processes in real-time.

Through our Apps & IoT segment, we deliver a combinationof turn-key network solutions, value-added services that simplify the management of multiple communications needs, and digital accelerators that collect, secure and analyze operational intelligence data, allowing our customers to increase margins and focus on core operations. As of December 31, 2018, Apps & IoT represented 10.8% of our total revenues and revenue generated from countries outside of the U.S. represented 21.7% of Apps & IoT revenue. We sell our Apps & IoT services not only via direct sales, but also a series of channel partners around the world, which enables us to target customers in industry verticals where we have not established a focused salesforce.

Apps & IoT services deliveredover-the-top of the network layer include:

Intelie, our real-time machine learning platform, delivers value to the energy sector and has applications that improve performance and operational safety, enhance well control, and reduce non-productive time (NPT).

Intelie has delivered significant results, helping drilling contractors and operators generate time and cost savings in their upstream operations. Examples include reducing NPT by more than $5.0 million per rig per year and generating around $0.5 million in savings per rig per year in early stage condition-based maintenance. Intelie has also contributed as much as $3 million in software savings for a customer by eliminating extra software by consolidating functionality. For one customer, the Intelie platform processed over 300,000 measurements per second at its peak, synthesizing and displaying actionable results to the end user. The increased linkage between IoT solutions and Intelie allows us to not only provide communications, but also to be directly involved in driving valuable business outcomes for our customers.

RigNet’s IoT network supports over 10,000 different sites, predominantly in the U.S. A key element of our network, devices using theL-band satellite network, has grown substantially during 2018 to include over 5,000 activeL-Band enabled IoT sites at the end of December 2018, consuming over 40 gigabytes per month of traffic, or roughly 13.7 megabytes per month per site.

We believe the Apps and IoT segment is an important element of our long-term growth.

System Integration (SI)

Due to our deep knowledge of the energy sector’s needs and wide range of expertise around critical communications in challenging environments, our clients also turn to us to build large network projects within their facilities. Solutions are delivered based on the customer’s specifications, adhering to international industry standards and best practices. Project services may include consulting, design, engineering, project management, procurement, testing, installation, commissioning, and maintenance. Projects are bid on a fixed-cost or time and materials basis with revenue recognized on a percentage of completion basis. As of December 31, 2018, Systems Integration represented 17.4% of our total revenues and revenue generated from countries outside of the U.S. represented 12.0% of SI revenue.

RigNet typically operates as a subcontractor on SI projects, working with other major Engineering, Procurement, and Construction (EPC) companies to deliver the project scope to the end customer. The business is both competitive and cyclical. The typical project length for our SI projects is anywhere from less than one year to approximately two years. We measure the health of this business by our project backlog, or the amount of revenue secured subject to firm contract awards that will be recognized over the life of each project. We report our Project Backlog, shown in the table below as of December 31 of the respective year, on a regular basis. As of December 31, 2018, our Project Backlog of $45.5 million had increased by 75.0% from $26.0 million as of December 31, 2017. The table below provides backlog data as of December 31 for the respective years.

Putting the parts back together

RigNet’s three revenue generating operating segments can each stand alone as separate services, but increasingly, our global customers are seeing higher value in how these products stack together. This has the potential to create what we have termed a synergistic “Flywheel Effect,” illustrated in the graphic below.    Customers who are embracing digital transformation are trying to unlock the operational technology potential of Industrial IoT. We believe this will create a proliferation of connected sensors, forming a large neural-network of data, wrapped in cyber security for protection and interpreted through SaaS-based machine learning platforms. Customers will be able to accelerate their time to value by working with a set of services that are already vertically integrated and optimized to work under the most extreme of operating conditions. This can lower their execution risk for complex systems integrations and reduce upfront capital risk as a fully-managed SaaS service. For RigNet, the effect creates new streams of revenue, while at the same time stimulates pull-through bandwidth demand and increased stickiness to our core network services illustrated in figure 4 below.

Customer Needs

The technology and remote telecommunications industries are highly dynamic and increasingly evolving with customer needs. We serve customers with customized communications, applications and cybersecurity solutions that connect to remote locations via networks, driving demand for reliable, managed communications services in a variety of environmental conditions. For several decades, our core customer base has primarily beenoff-shore and remote land oil and gas drillers, exploration and production operators, and oilfield service companies. As part of our growth strategy, we seek to expand to other adjacent markets that share substantially similar technical requirements; these include: global enterprise, midstream pipelines, maritime, engineering and construction, disaster recovery services, banking and governments verticals.

The customers we serve depend on maximum reliability, quality and continuity of products and services. Our customers also are generally geographically dispersed and/or have remote operations. These customers are particularly motivated to use secure and highly reliable communications networks because they may require:

Our Customers, Their Industry, and Its Impact on RigNet

In 2018, almost all of RigNet’s revenue was derived from customers with some connection to the oil and gas industry. These included our traditional customers in the Upstream segment (drilling contractors, large integrated and independent oil and gas operating companies, and other oilfield service and maritime support companies, etc.), as well as customers in the Midstream segment (pipelines, LNG plants, etc.) and large Engineering, Procurement, and Construction companies working in the Downstream segment. Although no single customer accounted for 10.0% or more of revenue in 2018, our top 5 customers accounted for 23.0% of our total revenue for 2018.    

The oil and gas industry is both cyclical and competitive. Our customers’ business plans and activities are significantly impacted by changes in, among other factors, oil and gas prices, global supply and demand for these commodities, geopolitical events, weather, and specific industrysub-segment dynamics (e.g., an oversupply of offshore drilling rigs.) Commodity prices are volatile and it is not unusual for our customers to experience rapid increases or declines which can have both short- and long-term impacts on their spending patterns.

After reaching their most recent peak in 2014, oil prices declined steeply, troughing below $30 per barrel in February 2016. In response, the industry reduced both capital and operating expenses significantly, negatively impacting RigNet’s business. Recovery for the industry has been slow and difficult. However, 2018 saw improved activity levels compared to the previous year with shallow water jackup rig activity increasing more than deepwater rig activity, driven by improved commodity prices and offshore production declines. Additionally, we saw more major construction projects approved for commencement, a factor which contributed to the significant increase in the Project Backlog of our SI business. While we expect conditions for the industry to continue to improve gradually, our long-term growth strategy does not rely solely on significant increases in global offshore drilling activity.

Customer Contracts

In order to streamline the addition of new projects and solidify our position in the market, we have signed contracts with most customers. Generally, we prefer to sign long-term contracts with our customers to increase our confidence in our projected financial performance. Nevertheless, the nature of the oil and gas industry requires us to be flexible to ensure we meet the needs of our customers. The specific services being provided are defined under individual service orders that generally have a term of one to three years for offshore customers with renewal options. Land-based locations are generally shorter term or terminable on short notice without penalty. Service orders are executed under the contracts for individual remote sites or groups of sites, and generally may be terminated early on short notice without penalty in the event of force majeure, breach of the agreement or cold stacking of a drilling rig.

Our Strategy

RigNet’s basic strategy remains unchanged: accelerate digital transformation for our customers by leveraging our core MCS business and introducing new, value-added service solutions. The strategy is composed of three elements:

Acquire New Capabilities

In 2017, we began to build new capabilities that would be complimentary both to our core MCS business and our improving SI business while enabling us to deliver secure, mission-critical solutions to enable our customers to enjoy the benefits of their digital transformation efforts. The graphic below illustrates our significant strategic acquisitions, their timing, and our rationale for the transaction in terms of whether the acquired company added a capability, expanded our reach to more customers, or both.

Cyphre was our first acquisition in 2017. As digital transformation efforts continue to touch every part of our customers’ businesses from offshore high-pressure blowout preventers to onshore operations planning, data security has become critical and Cyphre expanded our cybersecurity capabilities with advanced enterprise data protection by leveraging hardware-based encryption.

We acquired two additional companies in 2017, ESS and DTS. ESS expanded our product offering, added to our existing midstream SCADA customer portfolio, and strengthened our IoT market position. DTS enhanced our comprehensive communications and IT services to the onshore, offshore, and maritime industries, as well as disaster relief solutions to global corporate clients.

In 2018, we completed the acquisition of Intelie. Intelie is a real-time, predictive analytics company that combines operational expertise with a machine learning approach. Intelie facilitates innovation via Intelie Pipes, a distributed query language with a complex event processor to aggregate and normalize real-time data from a myriad of data sources. The Intelie platform empowers clients to make timely, data-driven decisions in mission-critical real-time operations, including drilling, and longer-term, data-intensive projects, such as well planning.

Finally, in 2018, we completed the separate, but related, acquisitions of Auto-Comm and SAFCON. Auto-Comm provides a broad range of communications services to the oil and gas industry for both onshore and offshore remote locations. Auto-Comm brings over 30 years of systems integration experience in engineering and design, installation, testing, and maintenance. SAFCON offers a diverse set of safety, security, and maintenance services to the oil and gas industry. Auto-Comm and SAFCON have developed strong relationships with major energy companies that complement the relationships that we have established over the years.

We believe that the capabilities acquired through this set of acquisitions enable us to provide a unique set of solutions to our customers that will help them to realize the benefits of their digital transformation efforts and provide us with a differentiating competitive advantage. We expect to be selective about merger and acquisition (M&A) activity in the future. We believe that we have largely acquired the necessary capability set and that networks benefit from scale. As such further M&A activity will likely be more focused on expanding our presence within the Energy industry and/or entering new industries where secure, remote communications are required.

Expand the scale and scope of our services

Our market presence and proven quality of service offer significant organic growth opportunities in energy segments adjacent to upstream where we are well positioned to deliver remote communications solutions.

In the MCS segment, we seek to leverage our current strong market position in drilling rigs, production facilities, and support vessels to grow additional share. Because of established relationships with our customers, reliable and robust service offerings and high-quality customer service, we believe that we are well-positioned to capture new build rigs that our customers add to their fleets as well as stacked rigs that are reactivated. We also seek to organically gain market share against our competitors. We continue to grow our network as well. In 2018, we committed to further invest in our Gulf of Mexico communications infrastructure, which we believe is the largest over-water microwave-based network in the world. This upgrade will add 4G LTE services and 5G capabilities to the existing network to provide both enhanced fixed and mobile services to our customers. This LTE network when complete will be designed to support a theoretical coverage area of up to approximately 45,000 square miles for B2B applications and up to approximately 30,000 square miles for consumer applications. Furthermore, as the onshore unconventional drilling and production industry has continued to grow, we have expanded our services to include not only onshore drilling rigs, but other onshore oilfield service providers.

We also intend to expand our Apps & IoT market share by bundling our new capabilities, including machine learning and cybersecurity, with our MCS offerings for both existing and new customers. Our acquisition of Intelie in 2018 enabled us to offer new solutions to help customers across the value chain continue to focus on improving their operational and financial performance. Through Cyphre, we assist our customers in protecting their mission-critical data both onshore and offshore. Furthermore, we continue to develop additional applications via our internal development team, including AVI, CrewConnect™, and other solutions which deliver increased value to our customers. We have also continued to grow our presence in the IoT market, particularly in energy’s midstream segment, where our robust, bandwidth-optimized applications enable customers to safely, reliably, and efficiently monitor and manage their remote sites and networks.

We continue to expand our Systems Integration market share by pursuing new Systems Integration customers and bids for projects globally to address the growing demand for buildout of large capital projects. We expect to continue to target traditional upstream opportunities, such as new fixed production platforms or onshore operating shorebases, as well as expanding our opportunity set to include new FPSOs and midstream projects, such as remote LNG liquefaction facilities. Additionally, our Apps & IoT capabilities are opening opportunities to introduce our machine learning and other solutions to our customers on these projects, potentially leading to pull-through business where we not only provide our SI solution, but possibly a bundle which includes managed communications and applications.

Expand into adjacent industry verticals

We believe revenue diversity is desirable in terms of product offering as well as industry exposure. We also believe that networks benefit from scale regardless of which end markets we serve with our managed communications product. As such, we will continue to look for and review opportunities in other remote communications market adjacencies that offer significant opportunities for growth and where we are well positioned to take advantage of these opportunities such as aviation, government, and mining. In some cases, we may determine that M&A activity is the most efficient way to enter a new vertical and we will look for targets which could provide both revenue and cost synergies as well as offer an opportunity to leverage our Apps & IoT solutions, many of which, including Intelie and Cyphre, are not energy-specific. However, we may not be able to identify targets which meet our investment criteria. In this case, we may choose to pursue opportunities in a new vertical by adding personnel who bring both expertise and business relationships.

Competitive Strengths

As a global technology company that provides customized communications services, applications, real-time machine learning, and cybersecurity solutions, our competitive strengths include:

Mission-critical services delivered by a trusted provider with global operations:Our longstanding relationships with the customers we serve provide us with anin-depth understanding of the mission-critical needs of our customers that enables us to tailor our services to their requirements. Our network availability and responsive customer service, along with the high switching costs associated with changing remote communications providers, provide us with a high rate of customer retention. Our global presence allows us to serve our clients around the world, except where government restrictions may apply. Our global terrestrial network also allows us to provide quality of service to prioritize various forms of data traffic for a more effective way to prioritize network traffic. Our ability to offer our customers global coverage sets us apart from regional competitors and allows us to match the breadth of their global operations and speed of deployment. The addition of Cyphre allows us to offerstate-of-the-art encryption and network security services for the data communications necessary to safely and efficiently manage remote operations. In addition, our OTT offerings allow us to leverage our network to provide additional offerings for safety, business productivity improvement, and crew comfort.

Leading edge technology with proven track recordin-market:Real-time predictive analytics software that works well in highly-connected urban areas and cloud computing, does not work the same in remote locations in high-latency, high-packet loss environments. With over 15 years of designing and managing remote communications in the RigNet brand, 40 years in system integrations design and testing, and over 10 years of experience with the Intelie platform (with now 7 years offshore experience), we have developed expertise that our customers lack.

High-quality customer support with full-time monitoring and regional service centers:Our globalend-to-end owned and operated network allows us to provide high quality customer care by enabling us to fully monitor our network. We can easily and rapidly identify and resolve any network problems that our customers may experience. As of December 31, 2018, we had 33 service operations centers and warehouses to support and service our customers’ remote sites. We maintain field technicians as well as adequate spare parts and equipment in these service operations centers. Our Global Customer Care (GCC) team staffs our Network Operations Center (NOC) and Security Operations Center (SOC) 24 hours per day, 365 days per year and provides engineering, service delivery, and change management to customers globally. We providenon-stop,end-to-end monitoring and technical support for every customer. This proactive network monitoring allows us to detect problems instantly and keep our services running at optimum efficiency. Fully managed technology is a key reason why we can support solutions that deliver high performance and new technologies that improve productivity.

Scalable systems using standardized equipment that leverages our global infrastructure:We have built our global satellite and terrestrial network with a sufficient amount of flexibility to support our growth without substantial incremental capital investment to our network.. Our knowledge and capabilities can be applied to remote sites located anywhere in the world. We generally install standardized equipment at each remote site, which allows us to provide support and maintenance services for our equipment in a cost-efficient manner. Not all of the components of equipment that we install at each site are the same, but the components that vary are limited in number and tend to be the same for sites located in the same geography. As of December 31, 2018, we contracted capacity from 43 satellites that areco-located at 26 teleports and 25 datacenters worldwide in order to provide ourend-to-end solutions. By leasing rather than owning our network enablers and owning theon-site equipment at each site, we are able to both minimize the capital investment required by the base network infrastructure and maintain the flexibility to install high quality equipment at each site tailored to its locale and environmental conditions. We do own and manage the IP layerend-to-end. The standardized nature of our equipment minimizes execution risk, lowers maintenance and inventory carrying costs, and enables ease of service support. In addition, we are able to remain current with technology upgrades due to ourback-end flexibility. Our product and service portfolio offersbest-in-class technology platforms using the optimal suite of communications and networking capabilities for customers.

Customized Systems Integration solutions provided by expert telecoms systems engineers:Through our acquisition of Nessco Group Holdings Ltd (Nessco) in 2012, Inmarsat’s Enterprise Energy business unit in 2014, TECNOR in 2016, and Auto-Comm and SAFCON in 2018, we provide global customized Systems Integration solutions through our SI business. As the demand for additional telecommunications products and telecoms systems increase with each new technological advance, the need for well-designed, efficient and reliable network infrastructures becomes increasingly vital to customers. Our solutions are custom designed, built and tested by expert engineers based on the customer’s

specifications and requirements, as well as international industry standards and best practices. For those customers requiring reliable remote communications services, maintenance and support services and customized solutions for their network infrastructures, RigNet provides aone-stop-shop to satisfy these demands.

Flexible, provider-neutral technology platform:Because we procure communications connections and network equipment from third parties, we are able to customize the best solution for our customers’ needs and reduce our required fixed capital investments. We aim to preserve the flexibility to select particular service providers and equipment so that we may access multiple providers and avoid downtime if any of our initial providers were to experience any problems. By procuring bandwidth from a variety of communications providers instead of owning our own satellites, we are able to minimize capital investment requirements and can expand our geographic coverage in response to customers’ needs with much greater flexibility.

Long-term relationships with leading companies in the oil and gas, maritime, pipeline and engineering and construction industries:We have established relationships with some of the largest companies in the oil and gas, maritime, pipeline and engineering and construction industries. Some of our key customers are the leading drilling contractors around the world, with combined fleets of hundreds of rigs, as well as leading oil and gas, oilfield service, maritime, pipeline and engineering and construction companies. In most cases, these customers have high standards of service that favor strategic providers such as RigNet and work in partnership with us to serve their remote operations.

The ability to design and implement a broad range of communication solutions using a range of frequencies and modes of communication:We have the ability to design and implement a broad range of communication solutions using a range of frequencies and modes of communication. These modes of communication include wired, wireless satellite Ku, Ka, C and L frequency bands, wireless WiMAX andLine-of-Sight (LOS) microwave, 3G and 4G LTE services, and5G-capabilities. This range of communications solutions allows us to offer competitive and reliable communications solutions in a broad range of remote geographic locations where our customers operate. This helps us meet our customers’ requirements for choosing their provider(s) based on network availability while factoring in price.

Suppliers

Although we have preferred suppliers of technology, telecommunications and networking equipment, nearly all technology utilized in our solutions is available from more than one supplier.

In addition, we do not rely on one satellite provider for our entire satellite bandwidth needs except for certain instances in which only one satellite bandwidth provider is available in an operating location, which is typically due to licensing restrictions or where only one satellite provider can offer a particular bandwidth. This approach generally allows us flexibility to use the satellite provider that offers the best service for specific areas and to change providers if one provider experiences any problems.

Competition

The technology and remote telecommunications industry is highly competitive. We expect competition in the markets that we serve to persist, intensify and change. We face varying degrees of competition from a wide variety of companies, including potential new entrants from providers to adjacent vertical markets and from forward integration by some of our suppliers deeper in the industry value chain, since successful service and system development is not necessarily dependent upon substantial financial resources.

Our primary global competitor in MCS is Speedcast International Ltd. Both Panasonic, through its ITC Global subsidiary, and Tampnet have begun to expand their presence as active providers of communications services to the oil and gas, mining and maritime markets. We also compete with regional competitors in the countries in which we operate. Specifically, in our U.S. onshore operations, we face competition from: wireless network providers, drilling instrumentation providers, living quarters companies, and other pure-play providers like us.

Our customers generally choose their provider(s) based on the quality and availability of the service and the ability to restore service quickly when there is an outage. Pricing and breadth of service offerings are also factors. Our customers depend on maximum availability, quality and continuity of products and service. Established relationships with customers and proven performance serve as significant barriers to entry.

While we experience competition in our markets, we believe that our Apps & IoT offerings are a key differentiator that strategically aligns with our customers’ need to achieve digital transformation and business synergy goals. However,as our serviceable market has seen significant expansion due to our organic and inorganic growth in Apps & IoT, so has our competitor list. Our competitors now include IBM, Microsoft, Google, Kongsberg Gruppen ASA and other smaller pure-play providers.

Our customers choose the accelerated speed and value created by a vertically aligned stack. We believe that we are unique in our vertically offering both Apps & IoT offeringsover-the-top of our MCS offering. We call this unique value proposition created by our vertically aligned stack the “vertical of one”.

Employees

As of December 31, 2018, we had approximately 604 full time employees consisting of 316 in North America, 113 in Latin America, 104 employees in Europe/Africa and 71 employees in the Middle East and Asia Pacific.

Geographic Information

See Note 12 — “Segment Information,” in our consolidated financial statements included in this Annual Report on Form10-K for more information regarding revenues and assets attributable to our domestic and international operations.

Other Information

Corporate Structure and History

We were incorporated in Delaware on July 6, 2004. Our predecessor began operations in 2000 as RigNet, Inc., a Texas corporation. In July 2004, our predecessor merged into us. The communications services we provide to the offshore drilling and production industry were established in 2001 by our predecessor, who launched initial operations in the Asia Pacific region. We have since evolved into one of the leading global providers of remote communications services.

Principal Executive Offices

Our corporate headquarters is located at 15115 Park Row Blvd, Suite 300, Houston, Texas. Our main telephone number is +1 (281)674-0100.

Company Website and Available Information

The Company’s internet website is www.rig.net. The information found on our website is not incorporated into this Annual Report on Form10-K. The Company makes available free of charge on its website Annual Reports on Form10-K, Quarterly Reports on Form10-Q, Current Reports on Form8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the Exchange Act). This information can also be found on the SEC website atwww.sec.gov.

In addition, in the “Governance” section of the Investors page on our web site, we make available our code of ethics and business conduct, our corporate governance guidelines, the charters for our audit, compensation, and corporate governance and nominating committees and various other corporate governance policies and documents.

Smaller Reporting Company Status

In June 2018, the SEC issued Release33-10513;34-83550, Amendments to Smaller Reporting Company Definition, which changed the definition of a smaller reporting company in Rule12b-2 of the Exchange Act. Under this release, the new thresholds for qualifying are (1) public float of less than $250 million or (2) annual revenue of less than $100 million and public float of less than $700 million (including no public float). Under the amended rule, RigNet now qualifies as a smaller reporting company. A smaller reporting company may choose to comply with scaled ornon-scaled financial andnon-financial disclosure requirements on anitem-by-item basis. The Company may determine to provide scaled disclosures of financial ornon-financial information in future quarterly reports, annual reports and/or proxy statements if it remains a smaller reporting company under SEC rules.

Forward-Looking Statements

This Annual Report on Form10-K contains forward-looking statements, within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act, as amended, that are subject to a number of risks and uncertainties, many of which are beyond the Company’s control. These statements may include statements about:

Forward-looking statements may be found in Item 1. “Business;” Item 1A. “Risk Factors;” Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and other items within this Annual Report on Form10-K. In some cases, forward-looking statements can be identified by terminology such as “may,” “could,” “should,” “would,” “expect,” “plan,” “project,” “intend,”, “will”, “anticipate,” “believe,” “estimate,” “predict,” “potential,” “pursue,” “target,” “continue,” the negative of such terms and other comparable terminology that convey uncertainty of future events or outcomes. All of these types of statements, other than statements of historical fact included in this Annual Report on Form10-K, are forward-looking statements.

The forward-looking statements contained in this Annual Report on Form10-K are largely based on Company expectations, which reflect estimates and assumptions made by management. These estimates and assumptions reflect management’s best judgment based on currently known market conditions and other factors. Although the Company believes such estimates and assumptions to be reasonable, they are inherently uncertain and involve a number of risks and uncertainties beyond its control. In addition, management’s assumptions may prove to be inaccurate. The Company cautions that the forward-looking statements contained in this Annual Report on Form10-K are not guarantees of future performance, and it cannot assure any reader that such statements will be realized, or the forward-looking statements or events will occur. Risks, uncertainties and other factors that may cause actual results to differ materially from those expressed or implied in the forward-looking statements include, without limitation:

If one or more of these factors materialize, or if any underlying assumptions prove incorrect, our actual future results, performance or achievements may vary materially from any projected future results, performance or achievements expressed or implied by these forward-looking statements. The forward-looking statements speak only as of the date made, and other than as required by law, the Company undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

Government Regulation

The following is a summary of the regulatory environment in which we currently operate and does not describe all present or proposed international, federal, state and local legislation and regulations affecting the communications industry, some of which may change the way the industry operates as a result of administrative or judicial proceedings or legislative initiatives. We cannot predict the outcome of any of these matters or the impact on our business.

The telecommunications industry is highly regulated. Most of the services we provide in our MCS segment require licenses or approvals from regulatory authorities in various countries. In the United States, we are subject to the regulatory authority of the Federal Communications Commission (FCC). Regulation of the telecommunications industry continues to change rapidly. Our U.S. services are currently provided on a private carrier basis, rather than a common carrier basis, and are therefore subject to lighter regulation under the U.S. Communications Act of 1934, as amended (the Act), and the regulations of the FCC. If the FCC determines that the services of RigNet or its subsidiaries constitute common carrier offerings subject to common carrier regulations, we may be subject to significant costs to ensure compliance with the applicable provisions of those laws and regulations. We may be subject to enforcement actions including, but not limited to, fines, cease and desist orders, or other penalties if we fail to comply with all applicable requirements.

For our U.S. business we maintain licenses with rights to the electromagnetic spectrum, including fixed microwave licenses, very small aperture terminal (VSAT) earth station licenses, various private and commercial mobile radio service licenses, broadband radio licenses and contracts for wireless communications service licenses. Failure to maintain appropriate licenses could subject RigNet to fines imposed by the FCC. In 2015 we participated in FCC Auction 97 and wonAWS-3 spectrum. Subsequently in 2018, we purchased previously auctioned 700MHz spectrum from a large carrier. In order to maintain our spectrum, we must build a network to support it. If we fail to meet construction deadlines associated with these network build outs, we could be subject to forfeiture of the electromagnetic spectrum.

As an evolvingnon-dominant international and domestic carrier under the Act, among other requirements, RigNet must pay various fees including contribution of a percentage of its revenues from telecommunications services to the FCC’s Universal Service Fund (USF) and other federal program funds to subsidize certain user segments, file various reports, and comply with rules that protect customer information and the processing of emergency calls. RigNet is also subject to the Communications Assistance for Law Enforcement Act (CALEA) and associated FCC regulations that require telecommunications service providers and VoIP providers to configure their networks to facilitate electronic surveillance by law enforcement authorities.

Like the FCC, the state public utility commissions (PUCs) impose various regulatory fees, universal service requirements, reporting and prior approval requirements for transfer or assignments. The FCC and state PUCs have jurisdiction to hear complaints regarding the compliance ornon-compliance with these and other carrier requirements of the Act and the FCC’s rules, and similar state laws and regulations.

If the FCC or any state PUC determines that RigNet has not complied with federal and/or state regulatory requirements, we may be subject to enforcement actions including, but not limited to, fines, cease and desist orders, license revocation, or other penalties.

Several proceedings pending before the FCC have the potential to significantly alter our USF contribution obligations. The FCC is considering: (1) changing the basis upon which USF contributions are determined from a revenue percentage measurement, as well as increasing the breadth of the USF contribution base to include certain services now exempt from contribution; (2) the classification of MPLS; and (3) the classification of variousIP-enabled services. Adoption of these proposals could have a material adverse effect on our costs of providing service. We are unable to predict the timing or outcome of these proceedings. We cannot predict the application and impact of changes to the federal or state USF contribution requirements on the communications industry generally and on certain of our business activities in particular.

We must generally register to provide our telecommunications services in each country in which we do business. The foreign laws and regulations governing these services are often complex and subject to change with short or no notice. At times, the rigs or vessels on which our equipment is located and to which our services are provided will need to operate in a new location on short notice and we must quickly make regulatory provisions to provide our services in such countries. Failure to comply with any of the laws and regulations to which we are subject may result in various sanctions, including fines, loss of authorizations and denial of applications for new authorizations or for renewal of existing authorizations.

We must comply with export control laws and regulations, trade and economic sanction laws and regulations of the United States and other countries with respect to the export of telecommunications equipment and services. State and local regulation additionally apply to certain aspects of our business. We are also subject to various anti-corruption laws, including the Foreign Corrupt Practices Act, that prohibit the offering or giving anything of value to government officials for the purpose of obtaining or retaining business or for gaining an unfair advantage.

Item 1A.Risk Factors

Factors that could materially affect our business, financial position, operating results or liquidity and the trading price of our common stock are described below. This information should be considered carefully, together with other information in this report and other reports and materials we file with the SEC.

A large portion of our business fluctuates with the level of global oil and natural gas exploration, development and production, as a large portion of our customers are energy related.

Demand for our remote communication services and collaborative applications depends on our customers’ willingness to make operating and capital expenditures to explore, develop and produce oil and natural gas. Our business will suffer if these expenditures decline. Our customers’ willingness to explore, develop and produce oil and natural gas depends largely upon prevailing market conditions that are influenced by numerous factors over which we have no control, including:

Oil and gas prices are volatile, and the oil and gas business is cyclical. When prices are perceived as being too low, to generate acceptable returns, companies reduce expenditures for exploration and production. In 2018, oil prices experienced heightened volatility, with prices falling significantly in the last quarter of the year. As a result, we have seen a material decline in the demand for our products and services and significant pressure on the prices we can charge.

Furthermore, our customers have experienced declines in their cash flows which has led to delays in payment, or nonpayment, for our products and services. Commodity price declines and increased volatility have particularly affected our customers’ budgets for offshore capital investments and expenditures which has had a material and adverse effect on our addressable market. These conditions have had, and may continue to have, a material adverse effect on our financial condition, results of operations and cash flows.

The Global Xpress (GX) dispute may have a material adverse effect on us.

See a more complete discussion of the GX dispute in Note 9 of the Notes to Consolidated Financial Statements and in Item 3, Legal Proceedings of this Annual Report on Form10-K.

As previously announced on December 3, 2018, the International Centre for Dispute Resolution arbitration panel found that RigNet’stake-or-pay obligation for GX service had commenced and that RigNet owed Inmarsat $50.8 million, subject to any offsets from RigNet’s counterclaims in Phase II of the arbitration. This is an interim ruling, and RigNet is not required to pay any amounts to Inmarsat until the panel rules on Phase II counterclaims. The Company currently expects a Phase II ruling in the second half of 2019. As of December 31, 2018, RigNet has an accrued liability of $50.8 million related to the GX dispute loss contingency.

Our assessment of our potential loss contingency may change in the future due to developments at the arbitration, and such reassessment could lead to the determination that a greater loss contingency is probable, which could have a material adverse effect on our business, financial condition and results of operations. Amounts of estimated loss contingency accruals as disclosed in this Annual Report on Form10-K or elsewhere are based on currently available information and involve elements of judgment and significant uncertainties. No assurance can be given as to the ultimate outcome of the GX dispute, and the ultimate outcome may differ from the estimated amount.

If our efforts to reduce the award through our Phase II counterclaims are unsuccessful, payment of an award to Inmarsat will reduce our liquidity. Although we have secured the first amendment to the third amended and restated credit agreement (Updated Credit Agreement), if we do not meet our planned financial targets, we could not have sufficient capacity under the Updated Credit Agreement to pay the award. Our Updated Credit Agreement requires us to have a consolidated leverage ratio of 3.25 to 1.00 in the quarter that RigNet makes a final irrevocable payment of all monetary damages from the GX dispute. No assurances can be made that we will have sufficient leverage ratio to draw on the Updated Credit Agreement and pay a final award.

Many of our contracts have arbitration clauses, which may limit our ability to appeal adverse rulings.

As many of our contracts have arbitration clauses, we are and can be subject to arbitration proceedings. Arbitration findings are typically binding, which limits our ability to appeal adverse rulings. Adverse arbitration rulings can harm our business, financial conditions and results of operations.

Our industry is characterized by rapid technological change, and if we fail to keep pace with these changes or if access to telecommunications in remote locations becomes easier or less expensive, our business, financial condition and results of operations may be harmed.

Recently some remote communications providers are offering the use of LTE and high-throughput satellite (HTS) service, instead of or in addition to the conventionalKu-band andC-band satellite space segments used today. Our business may be harmed if our competitors are more successful than us in introducing LTE and or HTS services to meet customer needs.

If alternative telecommunications services to remote locations become more readily accessible or less expensive, our business will suffer. New disruptive technologies could make our VSAT-based networks or other services obsolete or less competitive than they are today, requiring us to reduce the prices that we are able to charge for our services or causing us to undergo expensive transitions to new technologies. We may not be able to successfully respond to new technological developments and challenges or identify and respond to new market opportunities, services or solutions offered by competitors. In addition, our efforts to respond to technological innovations and competition may require significant capital investments and resources. Furthermore, if we invest either organically or through Mergers and Acquisitions in a new technology and any such technology is not successful, our business, financial conditions and results of operations may be harmed.

Failure to obtain and retain skilled personnel could impede our business and growth strategy.

Our operations depend on a highly qualified executive, sales, technical, development, service and management team. We face particularly high competition for cybersecurity and engineering talent. Failure to attract, recruit, retain and develop qualified personnel could have a material adverse effect on our business, financial condition and results of operations.

In the event that our cyber security measures fail or are otherwise inadequate, our systems or reputation may be damaged which could harm our business, financial conditions and results of operations. Further, failure to comply with data privacy requirements applicable to us could result in costly regulatory enforcement actions and the imposition of significant penalties.

We rely heavily on information systems to run our business and our customers rely on our networks and security measures in running their businesses. Given that our customer’s own and operate critical infrastructure, the nature of cybersecurity threats are advanced and persistent. There can be no assurance that the systems we have designed to prevent or limit the effects of cyber incidents or attacks will be sufficient to prevent or detect such attacks. If such incidents or attacks do occur, they could have a material impact on our systems including degradation of service, service disruption, excessive call volume to call centers and damage to our facilities, equipment and data. In addition, we could be adversely affected by the theft or loss of confidential customer data or intellectual property. With the acquisition of Cyphre, we now market our cybersecurity services as an expertise. A successful cyberattack against us or one of our cybersecurity customers may create negative publicity resulting in reputation or brand damage with customers. We may be required to expend significant resources to protect against these events or to alleviate problems, including reputational harm, customer loss and litigation, caused by these events or the failure or inadequacy of our security systems, which could have a material adverse effect on our business, financial condition and results of operations.

Further, the regulatory framework for privacy issues worldwide is complex and evolving, and we believe it is likely to remain uncertain for the foreseeable future. Many federal, state and foreign government entities and agencies have adopted or are considering adopting laws and regulations regarding the collection, use and disclosure of personal information. In the United States, these include rules and regulations promulgated under the authority of the Federal Trade Commission and state breach notification laws. Internationally, certain of the jurisdictions in which we operate have established their own data security and privacy legal framework with which we must comply. For example, the European Union has issued the General Data Protection Regulation (GDPR), which applies to anyone doing business in Europe. In general, GDPR sets a higher bar for privacy compliance, including new data subject rights, new mandatory security breach notification requirements, requirements to conduct data protection impact assessments and extensive record keeping requirements. Failure to comply with GDPR can have significant consequences, including substantial fines and reputational damage. We continue to analyze the GDPR in respect of its burden and applicability to our global business operations. We may fail to comply with any of these requirements, and compliance with these requirements may increase our compliance burden and costs.

We have made and expect to continue to make selective acquisitions as a primary component of our strategy. We may not be able to identify suitable acquisition candidates or consummate acquisitions on acceptable terms, or we may be unable to successfully integrate acquisitions, which could disrupt our operations and adversely impact our business and operating results.

A primary component of our strategy has been to acquire businesses to grow our product and service offerings. We intend to continue to pursue acquisitions of complementary technologies, products and businesses as a primary component of our growth strategy. Acquisitions involve certain known and unknown risks that could cause our actual growth or operating results to differ from our expectations. For example:

In addition, our acquisition strategy may divert management’s attention away from our existing business, resulting in the loss of key customers or employees, and expose us to unanticipated problems or legal liabilities, including responsibility as a successor for undisclosed or contingent liabilities or acquired businesses or assets.

If we fail to conduct due diligence on our potential targets effectively, we may not identify problems at target companies or fail to recognize incompatibilities or other obstacles to successful integration. Our inability to successfully integrate future acquisitions could impede us from realizing all of the benefits of those acquisitions and could severely weaken our business operations. The integration process may disrupt and, if new technologies, products or businesses are not implemented effectively, may preclude the realization of the full benefits expected by us and could harm our results of operations. In addition, the overall integration of new technologies, products or businesses may result in unanticipated problems, expenses, liabilities and competitive responses. The difficulties in integrating acquisitions include, among other things:

In addition, even if we integrate successfully the operations of an acquisition, we may not realize the full benefits of the acquisition, including the synergies or growth opportunities we expect. These benefits may not be achieved within the anticipated time frame, or at all.

Further, acquisitions may cause us to:

Attempts to enter new verticals may not be successful

As part of our growth strategy, we attempt to enter new verticals, and offer new and innovative products and services. We have and intend to enter new verticals and launch new products both organically and through selective mergers and acquisitions. Our attempts to enter new verticals and launch new products and services may not be successful, costing us money and diverting management time and attention.

Our customers may terminate many of our contracts on short notice without penalty, which could harm our business, financial condition and results of operations.

Customers may switch service providers without incurring significant expense relative to the annual cost of the service. Our contracts generally provide that in the event of prolonged loss of service or for other good reasons, our customers may terminate service without penalty. In addition, some of our contracts may be terminated by our customers for no reason and upon short notice. Terms of contracts typically vary with a range from short-term call out work to three years. Work orders placed under such agreements may have shorter terms than the relevant customer agreement. As a result, we may not be able to retain our customers through the end of the terms specified in the contracts, resulting in harm to our business, financial condition and results of operations.

Our updated credit agreement requires us to maintain certain financial covenant ratios. These ratios may limit our capacity to finance our GX liability, growth strategy and operations. Furthermore, if we fail to comply with the covenants contained in our credit facility, including as a result of events beyond our control, technical or other default could result, which could materially and adversely affect our operating results and our financial condition.

We amended our credit facility in February 2019. Our credit agreement now contains certain covenants and restrictions, including restricting the payment of cash dividends under default and maintaining certain financial covenants such as a consolidated fixed charge coverage ratio of not less than 1.25 to 1.00 as of December 31, 2018. Additionally, the credit agreement requires a consolidated leverage ratio, as defined in the credit agreement, of less than or equal to 2.75 to 1.00 as of December 31, 2018. The consolidated leverage ratio increases to 3.25 to 1.00 for four quarters starting in the quarter that RigNet makes a final irrevocable payment of all monetary damages from the GX dispute. The consolidated leverage ratio then decreases to 3.00 to 1.00 for three quarters, and then decreases to 2.75 to 1.00 for all remaining quarters. If any default occurs related to these covenants that is not cured or waived, the unpaid principal and any accrued interest can be declared immediately due and payable. The facilities under the credit agreement are secured by substantially all the assets of the Company.

If we approach our covenant limits, we will be limited in our ability to finance our GX liability, acquisitions, capital and operating expenditures. Should this happen we would pursue additional financing, either debt and or equity. We may incur financing and legal fees attempting to amend our current credit agreement, or in pursuing other debt and or equity financing. If additional capital is needed, we may not be able to obtain debt or equity financing on terms acceptable to us, if at all.

Our growth strategy requires substantial capital and acquisition expenditures. We may be unable to obtain required capital or financing on satisfactory terms.

To support our growth strategy, we expect to continue to make substantial capital expenditures and acquisitions. We expect to fund capital expenditures and acquisitions with cash generated by operations and borrowings under our revolving credit facility or capital markets transactions; however, our financing needs may require us to alter or increase our capitalization substantially through the issuance of debt or equity securities. The issuance of additional indebtedness would require that a portion of our cash flow from operations be used for the payment of interest and principal on our indebtedness, thereby reducing our ability to use cash flow from operations to fund working capital, capital expenditures and acquisitions. Furthermore, raising equity capital would generally dilute existing shareholders. If additional capital is needed, we may not be able to obtain debt or equity financing on terms acceptable to us, if at all.

Our strategy of moving up the technology stack entails entering new business lines that could fail to attract or retain users or generate revenue.

A key element of our growth strategy is to move up the technology stack, that is to leverage our existing network to provide application layer solutions to our network customers. In 2017, we began reporting a new segment, Apps & IoT, to capture results from these new OTT services, such as SCADA, MetOcean, BlackTIE, CyphreLink and Adaptive Video Intelligence. In addition, in 2018, we acquired Intelie which brings us a real-timemachine-to-machine learning offering, Intelie Live. We continue to expect to invest in new lines of business, new products and other new initiatives to generate revenue. Our customers may not adopt some of our new offerings. These offerings may present new and difficult technology challenges, and we may be subject to claims if customers of these offerings experience service disruptions or failures or other quality issues. In addition, profitability, if any, in our newer activities may be lower than in our older activities, and we may not be successful enough in these newer activities to recoup our investments in them. Furthermore, efforts at establishing new lines of business could divert management attention from our core MCS network and Systems Integration businesses. If any of this were to occur, it could damage our reputation, limit our growth and negatively affect our operating results.

We rely on third parties, particularly satellite owners, to provide products and services for the operation of our business. Failures by third-party providers have caused, and in the future could cause, service interruptions, harm our business and reputation and result in loss of customers and revenue.

A significant part of our operations and growth depends on third-party providers delivering reliable communications connections, networks, equipment, maintenance, repair and satellite transponder capacity, subjecting our business, reputation and customer revenue to risks beyond our control, such as:

Our results in 2018 and 2017 were negatively impacted by certain satellite outages and interruptions by certain of our providers. These incidents caused RigNet to lose forecasted revenues and to experience increased costs as we had to make alternative arrangements for our customers. We cannot assure you that we will not suffer future satellite outages or that any potential future outage will not have a material impact on our business, results of operations or financial condition. Under most of our contracts with satellite service providers, our satellite service providers do not indemnify us for such loss or damage to our business resulting from certain risks, including satellite failures. If any potential claims result in liabilities, we could be required to pay damages or other penalties.

Failure of our microwave, WiMax and/or LTE network or loss of platform access could materially impact our results of operations.

Our microwave network is aLine-of-Site (LOS) system that operates by relaying microwave communications from one microwave site to another that must be within visible sight. When a microwave site on a microwave relay is rendered inoperable subsequent dependent sites are also rendered inoperable. As such the risk of a microwave site being rendered inoperable by weather, technical failure, loss of access to an operator’s platform space or other means will likely cascade to other dependent microwave sites. We do not insure for loss of a microwave site or business interruption caused by the loss of such a site as we believe the cost of such insurance outweighs the risk of potential loss, so the loss of a microwave site or any business interruption could harm our business, financial condition and results of operations.

We are subject to anti-corruption and export control laws that have stringent compliance standards for us.

We are subject to a number of applicable export control laws and regulations of the United States as well as comparable laws of other countries. We cannot provide services to or in certain countries subject to United States trade sanctions administered by the Office of Foreign Asset Control of the United States Department of the Treasury or the United States Department of Commerce unless we first obtain the necessary authorizations. If our customers move their sites into countries subject to certain sanctions, we may not be able to serve them, in which case, our revenues will be adversely impacted, and we may have additional costs incurred as well. In addition, we are subject to the Foreign Corrupt Practices Act and other anti-corruption laws that, generally, prohibit bribes or unreasonable gifts to governments or officials. Violations of these laws or regulations could result in significant additional sanctions including fines, more onerous compliance requirements, and more extensive debarments from export privileges or loss of authorizations needed

to conduct aspects of our international business. In certain countries, we engage third-party agents or intermediaries to act on our behalf in dealings with government officials, such as customs agents, and if these third-party agents or intermediaries violate applicable laws, their actions may result in penalties or sanctions being assessed against us.

Many of our potential customers are resistant to new solutions and technologies, which may limit our growth.

Although there is a strong focus on technology development within the oil and gas industry, some of the companies in the upstream oil and gas industry are relatively conservative and risk averse with respect to adopting new solutions and technologies in the area of remote communications. As a result of the sustained downturn in oil and gas prices, many of our customers focus on price rather than the value new technologies bring them, further slowing the uptake of new solutions and technologies. Some drilling contractors, oil and gas companies and oilfield service providers may choose not to adopt new solutions and technology, such as ourOTT offerings, which may limit our growth potential.

Systems Integration projects are heavily dependent on cost, productivity, schedule and performance management.

We account for Systems Integration contracts using accounting rules for construction-type contracts. Factors that may affect future project costs and margins include the price and availability of labor, equipment and materials, productivity, as well as the time necessary to obtain approvals and permits. If we make inaccurate estimates, or if we find errors or ambiguities as to contract specifications or if circumstances change due to, among other things, unanticipated technical problems, changes in local labor conditions, weather delays, changes in the costs of equipment and materials, or our suppliers’ or subcontractors’ inability to perform, or changes in foreign exchange rates, then cost overruns may occur. We may be required to pay liquidated damages upon our failure to meet schedule or performance requirements of our contracts. In accordance with the accounting guidance, we would record a cumulative adjustment to reduce the margin previously recorded on the related project in the period a change in estimate is needed. If the contract is significant, or we encounter issues that impact multiple contracts, cost overruns could have a material adverse effect on our business, financial condition and results of operations.

The uncertainty of our contract award timing can also present difficulties in matching workforce size with contract needs. In some cases, we maintain and bear the cost of a ready workforce that is larger than necessary under existing contracts in anticipation of future workforce needs for expected contract awards. If an expected contract award is delayed or not received, we may incur additional costs resulting from reductions in staff or redundancy of facilities which could have a material adverse effect on our business, financial condition and results of operations.

We have a new management team which may cause disruption in our business, particularly our core markets, and which could have a materially adverse effect on our results of operations.

Our executive officers have an average tenure with RigNet of approximately two years. The planned transition to our new executive team could negatively affect our relationships with key customers, particularly in our core MCS business, and our employee morale. Any such effects could materially and adversely affect our business and results of operations.

A significant portion of our revenue is derived from a relatively small number of customers and the loss of any of these customers would materially harm our business, financial condition and results of operations.

Although we continue to diversify our customer base, we still receive a significant portion of our revenue from a relatively small number of large customers, among them being Royal Dutch Shell Plc, Bechtel Corporation, Ensco Plc, Seadrill Ltd., Baker Hughes, Veripos, Rowan, Noble Corporation Plc, Halliburton and Chevron. Although none of these customers represents more than 10% of our annual revenue, should one or more of these customers terminate or significantly reduce their business with us and we were not able to replace such revenue, our business, financial condition and results of operations would be materially harmed. Noble Corporation is transitioning the managed communications services we provided to one of our competitors. Noble was one of our top 10 customers in 2018 and 2017, and a number of Noble sites departed service in the latter half of 2018 and further Noble sites are expected to depart service in 2019. If we cannot replace this lost revenue, our financial condition and results of operations would be materially harmed. As our top customers are concentrated in energy, should there be any adverse impact on the energy business that caused our customers to reduce demand for our services our financial condition and results of operations would be materially harmed.

We may not be able to compete successfully against current and future competitors.

We expect both product and pricing competition to persist and intensify. Increased competition could cause reduced revenue, price reductions, reduced profits and loss of market share. Our industry is characterized by competitive pressures to provide enhanced functionality for the same or lower price with each new generation of technology. Our primary global competitor is Speedcast International Ltd. Panasonic, through its ITC Global subsidiary, and Tampnet have begun to expand their presence as active providers of communications services to the oil and gas, mining and maritime markets. We also compete with regional competitors in the countries in which we operate. In addition, in certain markets outside of the U.S., we face competition from local competitors that provide their services at a lower price due to lower overhead costs, including lower costs of complying with applicable government regulations and their willingness to provide services for a lower profit margin. Strong competition and significant investments by competitors to develop new and better solutions may make it difficult for us to maintain our customer base, force us to reduce our prices or increase our costs to develop new solutions.

Furthermore, competition may emerge from companies that we have previously not perceived as competitors or consolidation of our industry may cause existing competitors to become bigger and stronger with more resources, market awareness and market share. For example, we have experienced customer projects where we have bid directly against some of our satellite bandwidth providers, either acting alone or in conjunction with one of our direct competitors. Competition with our satellite bandwidth providers, either alone or in restrictive arrangements with our suppliers or competitors may materially and adversely affect the availability and pricing of our products and services.

As we expand into new markets, we may experience increased competition from some of our competitors that have prior experience or other business in these markets or geographic regions. In addition, some of our customers may decide to insource some of the MCS solutions that we provide, in particular our terrestrial communication services (e.g.,Line-of-Site (LOS) or Worldwide Interoperability for Microwave Access (WiMAX)), which do not require the same level of maintenance and support as our other services. Our success will depend on our ability to adapt to these competitive forces, to adapt to technological advances, to develop more advanced services and solutions more rapidly and less expensively than our competitors, to continue to develop and deepen our global sales and business development network, and to educate potential customers about the benefits of using our solutions rather than our competitors’ services or in sourced solutions. Our failure to successfully respond to these competitive challenges could harm our business, financial condition and results of operations.

Our international operations are subject to additional or different risks than our United States operations, which may harm our business and financial results.

We operate in many countries around the world, including countries in Asia, the Middle East, Africa, Latin America and Europe and intend to continue to expand the number of countries in which we operate. However, because operations in some countries may be temporary, the total number of countries in which we operate fluctuates. There are many risks inherent in conducting business internationally that are in addition to or different than those affecting our United States operations, including:

The authorities in the countries where we operate may introduce additional regulations for the oil and gas and communications industries. New rules and regulations may be enacted, or existing rules and regulations may be applied or interpreted in a manner which could limit our ability to provide our services. Amendments to current laws and regulations governing operations and activities in the oil and gas industry and telecommunications industry could harm our operations and financial results. Compliance with and changes in tax laws or adverse positions taken by taxing authorities could be costly and could affect our operating results.

Compliance related tax issues could also limit our ability to do business in certain countries. Changes in tax laws or tax rates, the resolution of tax assessments or audits by various taxing authorities, disagreements with taxing authorities over our tax positions and the ability to fully utilize our tax loss carry-forwards and tax credits could have a significant financial impact on our future operations and the way we conduct, or if we conduct, business in the affected countries.

Our intellectual property rights are valuable, and any failure or inability to sufficiently protect them could harm our business and our operating results.

We own, and maintain certain intellectual property assets, including patents, patent applications, copyrights and trademarks, trade secrets, and rights to certain domain names, which we believe are collectively among our most valuable assets. We seek to protect our intellectual property assets through the laws of the U.S. and other countries of the world, and through contractual provisions. However, the efforts we have taken to protect our intellectual property assets and proprietary rights might not be sufficient or effective at stopping unauthorized use of those rights. If we are unable to protect our proprietary rights from unauthorized use, the value of our intellectual property assets may be reduced.

We compete for satellite capacity for our services and any capacity constraints could harm our business, financial condition and results of operations.

In certain markets, the availability and pricing of capacity could be subject to competitive pressure. We may be unable to secure the capacity needed at competitive prices to conduct our operations, which could harm our business, financial condition and results of operations. In certain markets, the availability of bandwidth may be restricted by local governments when needed to support military operations, and in the event of such an action, there is no guarantee that we will be able to secure the capacity needed to meet our contractual commitments to our customers.

Restructuring activities may negatively impact the Company.

Reductions in resources may adversely affect or delay various sales, marketing, product development and operational activities, which could have a material adverse effect on our financial results. Additionally, restructuring activities could have negative effects on our internal control over financial reporting and employee morale.

Information technology infrastructure and systems are critical to supporting our operations, accounting and internal controls; any potential failure of our information technology infrastructure or systems could adversely affect our business, financial conditions and results of operations.

We continue to update and enhance our information systems. If a problem occurs that impairs or compromises this infrastructure, systems upgrades and/or new systems implementations, the resulting disruption could impede our ability to perform accounting, invoice, process orders, generate management reports or otherwise carry on business in the normal course. Any such events could cause us to lose customers and/or revenue and could require us to incur significant expense to remediate. Additionally, any such events could adversely harm our legal, accounting and compliance capabilities including but not limited to: our ability to timely file reports with the SEC; maintain effectiveness of internal control; timely file financial statements required by certain statutes; timely file compliance reports with our lenders under our credit agreement; and timely file income taxes with the IRS, foreign taxing authorities, and local taxing authorities.

Severe weather in the Gulf of Mexico or other areas where we operate could harm our business, financial condition and results of operations.

Certain areas in and near the Gulf of Mexico and other areas in which our clients operate experience unfavorable weather conditions, including hurricanes and other extreme weather conditions, on a relatively frequent basis. A major storm or threat of a major storm in these areas may harm our business. Our clients’ drilling rigs, production platforms and other vessels in these areas are susceptible to damage and/or total loss by these storms, which may cause them to no longer

need our communication services. Our equipment on these rigs, platforms or vessels could be damaged causing us to have service interruptions and lose business or incur significant costs for the replacement of such equipment. Even the threat of a very large storm will sometimes cause our clients to limit activities in an area and thus harm our business. Changing weather conditions could impair satellite connectivity, cause more sites to be shut down and generally cause activities to be limited so that our business may be harmed. This risk is more pronounced for LOS microwave service, as there is a likely loss of service for multiple subsequent microwave sites in the network relay.

Changes in the regulatory framework under which we operate could adversely affect our business prospects or results of operations.

Our U.S. services are provided on a private carrier basis. As such, these services are subject to light or no regulation by the FCC and state PUCs. If the FCC or one or more PUCs or any other telecommunications regulator determine that these services or the services of our subsidiaries or affiliates constitute common carrier offerings or change the regulations applicable to private carriers, we may be subject to significant costs to ensure compliance with the applicable provisions of those laws and regulations. We may be subject to enforcement actions including, but not limited to, fines, cease and desist orders, or other penalties if we fail to comply with those requirements.

Our international operations are also regulated by variousnon-U.S. governments and international bodies. These regulatory regimes frequently require that we maintain licenses for our operations and conduct our operations in accordance with prescribed standards and requirements. The adoption of new laws or regulations, changes to the existing regulatory framework, new interpretations of the laws that apply to our operations, or the loss of, or a material limitation on, any of our material licenses could materially harm our business, results of operations and financial condition.

If we infringe, or if third parties assert that we infringe, third-party intellectual property rights we could incur significant costs and incur significant harm to our business.

Third parties may assert infringement or other intellectual property claims against us, which could result in substantial damages if it is ultimately determined that our services infringe a third-party’s proprietary rights. Even if claims are without merit, defending a lawsuit takes significant time, may be expensive and may divert management’s attention from our other business concerns.

Many of our contracts are governed by the laws of countries that may make them difficult or expensive to interpret or enforce.

Many of our contracts are governed by the laws of countries other than the U.S., which may create both legal and practical difficulties in case of a dispute or conflict. We operate in regions where the ability to protect contractual and other legal rights may be limited. In addition, having to pursue arbitration or litigation in some countries may be more difficult or expensive than pursuing litigation in the United States.

Some of our stockholders could exert control over our Company.

As of March 11, 2019, funds associated with Kohlberg Kravis Roberts & Co. L.P., or KKR, owned in the aggregate shares representing approximately 25.7% of our outstanding voting power and have a seat on our board of directors. Additionally, as of March 11, 2019, funds associated with FMR, LLC, owned in the aggregate shares representing approximately 15.0% of our outstanding voting power, and funds associated with Arrowpoint Asset Management, LLC, owned in the aggregate shares representing approximately 13.0% of our outstanding voting power. As a result, any of these stockholders could potentially have significant influence over all matters presented to our stockholders for approval, including election or removal of our directors and change of control transactions. The interests of these stockholders may not always coincide with the interests of the other holders of our common stock.

We are subject to fluctuations in currency exchange rates and limitations on the expatriation or conversion of currencies, which may result in significant financial charges, increased costs of operations or decreased demand for our services and solutions.

During the year ended December 31, 2018, 8.4% of our revenues were earned innon-U.S. currencies, while a significant portion of our capital and operating expenditures and all of our outstanding debt, was priced in U.S. dollars. In addition, we report our results of operations in U.S. dollars. Accordingly, fluctuations in exchange rates relative to the U.S. dollar could have a material effect on our reported earnings or the value of our assets. In the future, a greater portion of our revenues may be earned innon-U.S. currencies, increasing this risk of fluctuations in exchange rates.

Any depreciation of local currencies in the countries in which we conduct business may result in increased costs to us for imported equipment and may, at the same time, decrease demand for our services and solutions in the affected markets. If our operating companies distribute dividends in local currencies in the future, the amount of cash we receive will also be affected by fluctuations in exchange rates. In addition, some of the countries in which we have operations do or may restrict the expatriation or conversion of currency making such cash unavailable for financing of our global operations and capital investments.

Furthermore, a majority of our cash balances are held outside of the United States. Were we to repatriate this cash to the United States we may have to pay taxes in one or more countries making the cash available to us less than that reported in our financial statements.

The average daily trading volume of our common stock is low which can cause volatility in its price unrelated to our actual operations and performance.

The average daily trading volume of our stock in 2018 was approximately 56 thousand shares. Due to the low trading volume our stock may be subject to more market volatility than other more liquid stocks, without regard to our performance. Stock price volatility and sustained decreases in our share price could subject our stockholders to losses and subject us to takeover bids or lead to action by NASDAQ. The trading price of our common stock has been, and may continue to be, subject to fluctuations in price in response to various factors, some of which are beyond our control, including, but not limited to:

In addition, we are only covered by two analysts, which could lead to less independent analysis for shareholders.

We are a smaller reporting company and, as such, our common stock may be less attractive to investors.

We are a smaller reporting company, (i.e. a company with less than $250 million of public float) and we are eligible to take advantage of certain exemptions from various reporting requirements applicable to other public companies. We cannot predict if investors will find our common stock less attractive as a result of our smaller reporting company status. If some investors find our common stock less attractive as a result of our choices, there may be a less active trading market for our common stock and our stock price may be more volatile.

Item 1B.Unresolved Staff Comments

Not applicable.

Item 2.Properties

Facilities

We lease 28,808 square feet of headquarters office space located in Houston, Texas. The term of this lease runs through June 2025. We also own a custom built, approximately 26,000 square foot facility in Aberdeen, Scotland, a 55,000 square foot facility in Lafayette, Louisiana and a 13,000 square foot facility in Breaux Bridge, Louisiana.

We have other offices under lease in Lafayette, Louisiana; Denver, Colorado; Stavanger, Norway; Doha, Qatar and Singapore, and additional leased offices, warehouses and service centers in the United States, Brazil, Mexico, Nigeria, Malaysia, Australia, United Arab Emirates and Saudi Arabia. We believe our facilities are adequate for our current needs and for the foreseeable future.

Item 3.Legal Proceedings

In August 2017, the Company filed litigation in Harris County District Court and arbitration against one of its former Chief Executive Officers for, among other things, breach of fiduciary duty, misappropriation of trade secrets, unfair competition and breach of contract. That former executive filed counterclaims against the Company and one of its independent directors. The parties entered into a settlement agreement resolving all claims amongst themselves in May 2018 and dismissed the litigation and arbitration proceedings. The Company incurred legal expense of approximately $0.6 million and $0.9 million in connection with this dispute for the year ended December 31, 2018 and 2017, respectively.

Inmarsat plc (Inmarsat), a satellite telecommunications company, filed arbitration with the International Centre for Dispute Resolution tribunal (the panel) in October 2016 concerning a January 2014take-or-pay agreement to purchase up to $65.0 million, under certain conditions, of GX capacity from Inmarsat over several years (GX dispute). Phase I of the arbitration, now concluded, concerned only whether RigNet’s take or pay obligation ever commenced under the agreement. In December 2018, the panel’s Phase I ruling found that atake-or-pay obligation under a January 2014 contract had commenced and that RigNet owed Inmarsat $50.8 million, subject to any offsets from RigNet’s counterclaims in Phase II of the arbitration. The Phase I ruling is an interim ruling, and RigNet is not required to pay any amounts to Inmarsat until the panel rules on Phase II counterclaims. The Company currently expects a Phase II ruling in the second half of 2019.

The Company has an accrued liability of $50.8 million, based on the Phase I interim award amount. While management believes it has strong counterclaims, which will be heard in Phase II and could reduce the ultimate liability, the amount of the final award is not estimable at this time. No assurance can be given as to the ultimate outcome of the GX dispute, and the ultimate outcome may differ from the accrued amount. Based on the information available at this time, the potential final loss could be based on the Phase I ruling less any offsets from RigNet’s counterclaims in Phase II of the arbitration offset by any potential counterclaims by Inmarsat, including interest and fees. As such, the range of the ultimate liability is currently not estimable.

During the year ended December 31, 2018, the Company has accrued $50.6 million of expense, net of approximately $0.2 million of prior accruals, in the Corporate segment. The Company has incurred legal expenses of $2.2 million and $1.6 million in connection with the GX dispute for the years ended December 31, 2018 and 2017, respectively. The Company may continue to incur significant legal fees, related expenses and management time in the future.

The Company, in the ordinary course of business, is a claimant or a defendant in various other legal proceedings, including proceedings as to which the Company has insurance coverage and those that may involve the filing of liens against the Company or its assets.

Item 4.Mine SafetyDisclosures

Not applicable.

PART II

Item 5.Market for Registrant’sCommon Equity, Related Stockholder Matters and Issuer Purchases of EquitySecurities

RigNet’s common stock, $0.001 par value, is traded on the NASDAQ Global Select Market (NASDAQ), under the ticker symbol RNET. There were approximately 111 holders of record of RigNet’s common stock on record as of February 28, 2019.

Dividends

We have not paid any cash dividends on our common stock and do not intend to do so in the foreseeable future. Further, our term loan agreement restricts our ability to pay cash dividends. We currently intend to retain all available funds and any future earnings to support the operation of and to finance the growth and development of our business.

Stockholder Return Performance Presentation

The following graph compares the change in the cumulative total stockholder return on our common stock during the period from December 31, 2013 through December 31, 2018, with the cumulative total return on the NASDAQ Composite Index, the PHLX Oil Service Sector Index and the NASDAQ Telecommunications Index. The Oil Service Sector Index is a price-weighted index composed of the common stocks of 15 companies that provide oil drilling and production services, oilfield equipment, support services, and geophysical/reservoir services. The comparison assumes that $100 was invested on December 31, 2012 in our common stock and in each of the foregoing indices and assumes reinvestment of dividends, if any.

Comparison of Cumulative Total Return

Investors are cautioned against drawing any conclusions from the data contained in the graph as past results are not necessarily indicative of future performance.

Notwithstanding anything to the contrary set forth in any of the Company’s previous or future filings under the Securities Act of 1933 or the Securities Exchange Act of 1934 that might incorporate this Annual Report on Form10-K or future filings with the SEC, in whole or in part, the preceding performance information shall not be deemed to be “soliciting material” or to be “filed” with the SEC or incorporated by reference into any filing except to the extent this performance presentation is specifically incorporated by reference therein.

Item 6.Selected Financial Data

The following table sets forth our selected consolidated financial data for the periods indicated. Data was derived from RigNet, Inc.’s audited consolidated financial statements. The data set forth should be read together with Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and with Item 8. “Financial Statements and Supplementary Data.” Our historical results for any prior period are not necessarily indicative of the results to be expected in the future.

We have never declared or paid any cash dividends on our common stock.

The 2018 acquisitions of Auto-Comm, SAFCON and Intelie contributed revenue and net income of $17.7 million and $2.2 million, respectively, for year ended December 31, 2018. The 2017 acquisitions of ESS, DTS and Cyphre contributed $5.1 million of revenue for the year ended December 31, 2017. The 2017 acquisitions contributed $1.4 million to net income for the year ended December 31, 2017. The GX dispute and change in fair value ofearn-out/contingent consideration are now presented as separate financial statement line items, and all historical data have been recast to conform to the current year presentation.

Non-GAAP Financial Measures

We refer to Adjusted EBITDA in this Annual Report on Form10-K and from time to time in other filings that we make with the SEC. Adjusted EBITDA is a financial measure that is not calculated in accordance with GAAP and should not be considered as an alternative to net income (loss), operating income (loss), basic or diluted earnings (loss) per share or any other measure of financial performance calculated and presented in accordance with GAAP. Our Adjusted EBITDA may not be comparable to similarly titled measures of other companies because other companies may not calculate Adjusted EBITDA or similarly titled measures in the same manner as we do. We prepare Adjusted EBITDA to eliminate the impact of items that we do not consider indicative of our core operating performance. We encourage you to evaluate these adjustments and the reasons we consider them appropriate.

We define Adjusted EBITDA as net income (loss) plus interest expense, income tax expense (benefit), depreciation and amortization, impairment of goodwill, intangibles, property, plant and equipment, foreign exchange impact of intercompany financing activities, (gain) loss on sales of property, plant and equipment, net of retirements, change in fair value of earn-outs and contingent consideration, stock-based compensation, acquisition costs, executive departure costs, restructuring charges, the GX dispute andnon-recurring items. We prepare Adjusted EBITDA to eliminate the impact of items that we do not consider indicative of our core operating performance. We encourage you to evaluate these adjustments and the reasons we consider them appropriate.

We believe Adjusted EBITDA is useful to investors in evaluating our operating performance for the following reasons:

Our management uses Adjusted EBITDA:

Although Adjusted EBITDA is frequently used by investors and securities analysts in their evaluations of companies, Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our results of operations as reported under GAAP. Some of these limitations are:

The following table presents a reconciliation of net income (loss) to Adjusted EBITDA for each of the periods presented. Net income (loss) is the most comparable GAAP measure to Adjusted EBITDA.

Item 7.Management’s Discussion And Analysis Of Financial Condition And Results Of Operations

General

The following discussion should be read together with our consolidated financial statements and the related notes included elsewhere in this Annual Report on Form10-K. This discussion contains forward-looking statements about our business and operations. Our future results may differ materially from those we currently anticipate as a result of the factors we describe under “Risk Factors” and elsewhere in this Annual Report on Form10-K.

Executive Overview

We deliver advanced software, optimized industry solutions, and communications infrastructure that allow our customers to realize the business benefits of digital transformation. With world-class, ultra-secure solutions spanning global IP connectivity, bandwidth-optimized OTT applications, IoT big data enablement, and industry-leading machine learning analytics, RigNet supports the full evolution of digital enablement, empowering businesses to respond faster to high priority issues, mitigate the risk of operational disruption, and maximize their overall financial performance.

Our Operations

We are a global technology company that provides customized data and communications services. Customers use our private networks to manage information flows and execute mission-critical operations primarily in remote areas where conventional telecommunications infrastructure is either unreliable or unavailable. We provide our clients what is often the sole means of communications for their remote operations. On top of and vertically integrated into these networks we provide services ranging from fully-managed voice, data, and video to more advanced services including: cyber security threat detection and prevention; applications to improve crew welfare, safety or workforce productivity; and a real-timeAI-backed data analytics platform to enhance customer decision making and business performance.

MCS and Apps & IoT customers are primarily served under fixed-price contracts, either on a monthly or day rate basis or for equipment sales. Our contracts are generally in the form of Master Service Agreements, or MSAs, with specific services being provided under individual service orders. Offshore contracts generally have a term of up to three years with renewal options. Land-based contracts are generally shorter term or terminable on short notice without a penalty. Service orders are executed under the MSA for individual remote sites or groups of sites, and generally permit early termination on short notice without penalty in the event of force majeure, breach of the MSA or cold stacking of a drilling rig (when a rig is taken out of service and is expected to be idle for a protracted period of time). Systems Integration customers are served primarily under fixed-price, long-term contracts.

Segment information is prepared consistent with the components of the enterprise for which separate financial information is available and regularly evaluated by the chief operating decision-maker for the purpose of allocating resources and assessing performance. Managed Communications was renamed Managed Communications Services (MCS).

Corporate and eliminations primarily represents unallocated executive and support activities, interest expense, income taxes, eliminations, the GX dispute and change in fair value ofearn-out/contingent consideration.

Cost of revenue consists primarily of satellite charges, voice and data termination costs, network operations expenses, internet connectivity fees, equipment purchases for Systems Integration projects and direct service labor. Satellite charges consist of the costs associated with obtaining satellite bandwidth (the measure of capacity) used in the transmission of service to and from contracted satellites. Direct service labor consists of field technicians, our Network Operations Center (NOC) employees, and other employees who directly provide services to customers. Network operations expenses consist primarily of costs associated with the operation of our NOC, which is maintained 24 hours a day, seven days a week. Depreciation and amortization are recognized on all property, plant and equipment either installed at a customer’s site or held at our corporate and regional offices, as well as intangibles arising from acquisitions and internal use software. Selling and marketing expenses consist primarily of salaries and commissions, travel costs and marketing communications. General and administrative expenses consist of expenses associated with our management, finance, contract, support and administrative functions.

Profitability generally increases or decreases at a MCS site as we add or lose customers and value-added services. Assumptions used in developing the rates for a site may not cover cost variances from inherent uncertainties or unforeseen obstacles, including both physical conditions and unexpected problems encountered with third party service providers.

Recent Developments

On February 13, 2019, the Company entered into the first amendment to the third amended and restated credit agreement (Updated Credit Agreement) with four participating financial institutions. The Updated Credit Agreement provides for a $15.0 million term loan facility, a $30.0 million term out facility and an $85.0 million revolving credit facility. The revolving credit facility and term out facility mature on April 6, 2021. The term loan facility matures on December 31, 2020.

In January 2019, we announced the appointment of retired Rear Admiral Jamie Barnett as Senior Vice President of Government Services.

We have committed to upgrade our Gulf of Mexico microwave network. In conjunction with a major U.S. carrier, this upgrade will add 4G LTE services and 5G capabilities to the existing network. Additionally, we purchased an office in Lafayette, Louisiana that will consolidate three separate legacy facilities. The Gulf of Mexico LTE network buildout project and the buildout of the Lafayette, Louisiana office will increase capital expenditures into 2019.

In August 2018, we announced the appointment of Lee M. Ahlstrom as Senior Vice President and Chief Financial Officer.

In July 2018, we paid anearn-out of $8.0 million in connection with the March 2016 acquisition of TECNOR. The $2.1 million change in fair value of theearn-out in the year ended December 31, 2018 is primarily related to the second quarter 2018 negotiations with the sellers of TECNOR on the amount of theearn-out. Additionally, we have agreed to pay the sellers of TECNOR up to $1.0 million in either cash or RigNet stock payable in 2019 for the collection of certain accounts receivable balances. As of December 31, 2018, the fair value for the agreement to collect certain accounts receivable was zero.

On April 18, 2018, we completed the separate acquisitions of Automation Communications Engineering Corp. (Auto-Comm) and Safety Controls, Inc. (SAFCON) for an aggregate purchase price of $6.7 million. Of this aggregate purchase price, we paid $2.6 million in cash and $4.1 million in stock. Auto-Comm provides a broad range of communications services, for both onshore and offshore remote locations, to the oil and gas industry. Auto-Comm brings over 30 years of systems integration experience in engineering and design, installation, testing, and maintenance. SAFCON offers a diverse set of safety, security, and maintenance services to the oil and gas industry. Auto-Comm and SAFCON have developed strong relationships with major energy companies that complement the relationships that we have established over the years. Auto-Comm and SAFCON are based in Louisiana.

On March 23, 2018, we completed the acquisition of Intelie Soluções Em Informática S.A (Intelie), for an estimated aggregate purchase price of $18.1 million. Of this aggregate purchase price, we paid R$10.6 million (BRL) (or approximately $3.2 million) in cash, $7.3 million in stock and expect to pay $7.6 million worth of RigNet stock as contingent considerationearn-out, estimated as of the date of acquisition. The initial estimate of theearn-out payable was preliminary and remains subject to change based on the achievement of certain post-closing performance targets under

the acquisition agreement. The maximumearn-out is $17.0 million. Intelie is a real-time, predictive analytics company that combines an operational understanding with a machine learning approach. Intelie facilitates innovation via Intelie Pipes, a distributed query language with a complex event processor to aggregate and normalize real-time data from a myriad of data sources. This technology enables the Intelie LIVE platform to solve data integration, data quality, data governance and monitoring problems. Intelie LIVE is an operational intelligence platform that empowers clients to make timely, data-driven decisions in mission-critical real-time operations, including drilling, and longer-term, data-intensive projects, such as well planning. Intelie Live has broad applicability across many industry verticals. Intelie is based in Brazil.

As of December 31, 2018, we have backlog for our percentage of completion projects, which includes our SI projects and our LTE buildout project, of $45.5 million. Our backlog does not extend past 2020.

Known Trends and Uncertainties

Operating Matters

Uncertainties in the oil and gas industry may continue to impact our profitability. The fundamentals of the oil and gas industry we serve remain challenged into 2019, particularly offshore. Although oil prices and U.S. drilling rig counts increased in 2017 and the first three quarters of 2018 since their 2016 lows, the oil and gas environment continues to be challenged with operators focusing on projects with shorterpay-back periods that generally require less capital investment and lower costs from service providers and drilling contractors. The average price of Brent crude, a key indicator of activity for the oil and gas industry, averaged $71.19 per barrel through the year ending December 31, 2018 compared to an average of $54.12 for the year ending December 31, 2017. Brent crude spot prices increased in the first three quarters of 2018 and peaked at $86.07 on October 4, 2018. From the recent October 4, 2018 high, Brent crude oil prices decreased over 40.0% in the fourth quarter of 2018. In the first quarter of 2019 Brent crude oil prices have recovered to over $60 a barrel. As a result, drilling contractors appear cautiously optimistic about a gradual demand recovery. The offshore drilling contracting environment remains challenged, with major offshore drilling contractors having experienced significant pressure on day rates, which in turn has had a negative impact on the rates we are able to charge customers. Generally, a prolonged lower oil price environment decreases exploration and development drilling investment, utilization of drilling rigs and the activity of the global oil and gas industry that we serve.

As of the dates and for the periods referenced below, we were billing on the following sites listed in the table below:

In addition, uncertainties that could impact our profitability and operating cash flows include service responsiveness to remote locations, communication network complexities, political and economic instability in certain regions, export restrictions, licenses and other trade barriers, the availability and cost of satellite bandwidth, timing of collecting our receivables, and our ability to increase our contracted services through sales and marketing efforts while leveraging the contracted satellite and other communication service costs. These uncertainties may result in the delay of service initiation, which may negatively impact our results of operations.

Sales Tax Audit

We are undergoing a routine sales tax audit from a state where we have operations. The audit can cover up to a four-year period. We are in the early stages of the audit and do not have any estimates of further exposure, if any, for the tax years under review.

Global Xpress (GX) Dispute

Inmarsat plc (Inmarsat), a satellite telecommunications company, filed arbitration with the International Centre for Dispute Resolution tribunal (the panel) in October 2016 concerning a January 2014take-or-pay agreement to purchase up to $65.0 million, under certain conditions, of GX capacity from Inmarsat over several years (GX dispute). Phase I of the arbitration, now concluded, concerned only whether our take or pay obligation ever commenced under the agreement. In December 2018, the panel’s Phase I ruling found that atake-or-pay obligation under a January 2014 contract had commenced and that we owed Inmarsat $50.8 million, subject to any offsets from our counterclaims in Phase II of the arbitration. The Phase I ruling is an interim ruling, and we are not required to pay any amounts to Inmarsat until the panel rules on Phase II counterclaims. We currently expect a Phase II ruling in the second half of 2019.

We have an accrued liability of $50.8 million, based on the Phase I interim award amount. While we believe we have strong counterclaims, which will be heard in Phase II and could reduce the ultimate liability, the amount of the final award is not estimable at this time. No assurance can be given as to the ultimate outcome of the GX dispute, and the ultimate outcome may differ from the accrued amount. Based on the information available at this time, the potential final loss could be based on the Phase I ruling less any offsets from our counterclaims in Phase II of the arbitration offset by any potential counterclaims by Inmarsat, including interest and fees. As such, the range of the ultimate liability is currently not estimable.

During the year ended December 31, 2018, we accrued $50.6 million of expense, net of approximately $0.2 million of prior accruals, in the Corporate segment. We have incurred legal expenses of $2.2 million and $1.6 million in connection with the GX dispute for the years ended December 31, 2018 and 2017, respectively. We may continue to incur significant legal fees, related expenses and management time in the future.

Critical Accounting Policies

Certain of our accounting policies require judgment by management in selecting the appropriate assumptions for calculating financial estimates. By their nature, these judgments are subject to an inherent degree of uncertainty. These judgments are based on our historical experience, terms of existing contracts, observance of trends in the industry, information provided by our customers, and information available from other outside sources, as appropriate. Future results may differ from these judgments under different assumptions or conditions. Our accounting policies that require management to apply significant judgment include:

Revenue Recognition—Revenue from Contracts with Customers

Revenue is recognized to depict the transfer of promised goods or services in an amount that reflects the consideration to which we expect to be entitled in exchange for those goods or services.

Revenue Recognition—MCS and Apps & IoT

MCS and Apps & IoT customers are primarily served under fixed-price contracts, either on a monthly or day rate basis or for equipment sales and consulting services. Our contracts are generally in the form of Master Service Agreements, or MSAs, with specific services being provided under individual service orders. Offshore contracts generally have a term of up to three years with renewal options. Land-based contracts are generally shorter term or terminable on short notice without a penalty. Service orders are executed under the MSA for individual remote sites or groups of sites, and generally permit early termination on short notice without penalty in the event of force majeure, breach of the MSA or cold stacking of a drilling rig (when a rig is taken out of service and is expected to be idle for a protracted period of time).

Performance Obligations Satisfied Over Time—The delivery of service represents the single performance obligation under MCS and Apps & IoT contracts. Revenue for contracts is generally recognized over time as service is transferred to the customer and we expect to be entitled to the agreed monthly or day rate in exchange for those services.

Performance Obligations Satisfied at a Point in Time—The delivery of equipment represents the single performance obligation under equipment sale contracts. Revenue for equipment sales is generally recognized upon delivery of equipment to customers.

Revenue Recognition—Systems Integration

Revenues related to long-term, fixed-price Systems Integration contracts for customized network solutions are recognized based on the percentage of completion for the contract. At any point, RigNet has numerous contracts in progress, all of which are at various stages of completion. Accounting for revenues and profits on long-term contracts requires estimates of total estimated contract costs and estimates of progress toward completion to determine the extent of revenue and profit recognition.

Performance Obligations Satisfied Over Time — The delivery of a Systems Integration solution represents the single performance obligation under Systems Integration contracts. Progress towards completion on fixed-price contracts is measured based on the ratio of costs incurred to total estimated contract costs (thecost-to-cost method). These estimates may be revised as additional information becomes available or as specific project circumstances change.

We review all material contracts on a monthly basis and revise the estimates as appropriate for developments such as providing services, purchasing third-party materials and equipment at costs differing from those previously estimated, and incurring or expecting to incur schedule issues. Changes in estimated final contract revenues and costs can either increase or decrease the final estimated contract profit or loss. Profits are recorded in the period in which a change in estimate is recognized, based on progress achieved through the period of change. Anticipated losses on contracts are recorded in full in the period in which they become evident. Revenue recognized in excess of amounts billed is classified as a current asset under Costs and estimated earnings in excess of billings on uncompleted contracts (CIEB).

Systems Integration contracts are billed in accordance with the terms of the contract which are typically either based on milestones or specified time intervals. As of December 31, 2018 and 2017, the amount of CIEB related to Systems Integration projects was $7.1 million and $2.4 million, respectively. Under long-term contracts, amounts recorded in CIEB may not be realized or paid, respectively, within aone-year period. As of December 31, 2018 and 2017, none and $0.4 million, respectively, of amounts billed to customers in excess of revenue recognized to date are classified as a current liability, under deferred revenue. All of the billings in excess of costs as of December 31, 2017 were recognized as revenue during the year ended December 31, 2018.

Variable Consideration – Systems Integration – We record revenue on contracts relating to certain probable claims and unapproved change orders by including in revenue an amount less than or equal to the amount of costs incurred to date relating to these probable claims and unapproved change orders, thus recognizing no profit until such time as claims are finalized or change orders are approved. The amount of unapproved change orders and claim revenues is included in our Consolidated Balance Sheets as part of CIEB. No material unapproved change orders or claims revenue was included in CIEB as of December 31, 2018 and 2017. As new facts become known, an adjustment to the estimated recovery is made and reflected in the current period.

Revenue related to long-term, fixed-price Systems Integration contracts for customized network solutions are recognized using thepercentage-of-completion method. At any point, RigNet has numerous contracts in progress, all of which are at various stages of completion. Accounting for revenues and profits on long-term contracts requires estimates of total estimated contract costs and estimates of progress toward completion to determine the extent of revenue and profit recognition. Progress towards completion on fixed price contracts is measured based on the ratio of costs incurred to total estimated contract costs (thecost-to-cost method). These estimates may be revised as additional information becomes available or as specific project circumstances change.

Accounts Receivable

Trade accounts receivable are recognized as customers are billed in accordance with customer contracts. We report an allowance for doubtful accounts for probable credit losses existing in accounts receivable. Management determines the allowance based on a review of currently outstanding receivables and our historical collection experience. Individual receivables and balances which have been outstanding greater than 120 days are reviewed individually. Account balances, when determined to be uncollectible, are charged against the allowance.

Property, Plant and Equipment

Property, plant and equipment consists of (i) telecommunication and computer equipment, (ii) furniture and other office equipment, (iii) leasehold improvements, (iv) building and (v) land. All property, plant and equipment, excluding land, is depreciated and stated at acquisition cost net of accumulated depreciation. Depreciation is provided using the straight-line method over the expected useful lives of the respective assets, which range from one to ten years. We assess the value of property, plant and equipment for impairment when we determine that events and circumstances indicate that the recorded carrying value may not be recoverable. An impairment is determined by comparing estimated future net undiscounted cash flows to the carrying value at the time of the assessment. No impairment to property, plant and equipment was recorded in the years ended December 31, 2018, 2017 or 2016.

Any future downturn in our business could adversely impact the key assumptions in our impairment test. While we believe that there appears to be no indication of current or future impairment, historical operating results may not be indicative of future operating results and events and circumstances may occur causing a triggering event in a period as short as three months.

Intangibles

Intangibles consist of customer relationships,covenants-not-to-compete, brand name, licenses, developed technology and backlog acquired as part of our acquisitions. Intangibles also includeinternal-use software. Intangibles have useful lives ranging from 5.0 to 20.0 years and are amortized on a straight-line basis. We assess the value of intangibles for impairment when we determine that events and circumstances indicate that the recorded carrying value may not be recoverable. An impairment is determined by comparing estimated future net undiscounted cash flows to the carrying value at the time of the assessment.

No impairment to intangibles was recorded in the years ended December 31, 2018 or 2017.

In June 2016, we identified a triggering event for a license in Kazakhstan associated with a decline in cash flow projections, which resulted in a $0.4 million impairment of licenses in the Corporate segment, which was the full amount of intangibles within Kazakhstan.

Any future downturn in our business could adversely impact the key assumptions in our impairment test. While we believe that there appears to be no indication of current or future impairment, historical operating results may not be indicative of future operating results and events and circumstances may occur causing a triggering event in a period as short as three months.

Goodwill

Goodwill resulted from prior acquisitions as the consideration paid for the acquired businesses exceeded the fair value of acquired identifiable net tangible and intangible assets. Goodwill is reviewed for impairment at least annually, as of July 31, with additional evaluations being performed when events or circumstances indicate that the carrying value of these assets may not be recoverable.

The goodwill impairment test is used to identify potential impairment by comparing the fair value of each reporting unit to the book value of the reporting unit, including goodwill. Fair value of the reporting unit is determined using a combination of the reporting unit’s expected present value of future cash flows and a market approach. The present value of future cash flows is estimated using our most recent forecast and our weighted average cost of capital. The market approach uses a market multiple on the reporting unit’s cash generated from operations. Significant estimates for each reporting unit included in our impairment analysis are cash flow forecasts, our weighted average cost of capital, projected income tax rates and market multiples. Changes in these estimates could affect the estimated fair value of our reporting units and result in an impairment of goodwill in a future period. If the fair value of a reporting unit is less than its book value, goodwill of the reporting unit is considered to be impaired. If the book value of the reporting unit’s goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. Any impairment in the value of goodwill is charged to earnings in the period such impairment is determined.

We recorded no goodwill impairments in the years ending December 31, 2018, 2017 or 2016.

MCS had $22.5 million of goodwill as of December 31, 2018, and fair value exceeded carrying value by 34.7% as of the July 31, 2018 annual impairment test. Apps & IoT had $22.8 million of goodwill as of December 31, 2018, and fair value exceeded carrying value by 48.1% as of the July 31, 2018 annual impairment test. Systems Integration had $1.4 million of goodwill as of December 31, 2018, and fair value exceeded carrying value by 126.5% as of the July 31, 2018 annual impairment test. Any future downturn in our business could adversely impact the key assumptions in our impairment test. While we believe that there appears to be no indication of current or future impairment, historical operating results may not be indicative of future operating results and events and circumstances may occur causing a triggering event in a period as short as three months.

While we believe that there appears to be no indication of current or future impairment, historical operating results may not be indicative of future operating results and events and circumstances may occur causing a triggering event in a period as short as three months.

Stock-Based Compensation

We recognize expense for stock-based compensation based on the fair value of options, restricted stock, restricted stock units and performance share units on the grant date of the awards. Fair value of options on the grant date is determined using the Black-Scholes model, which requires judgment in estimating the expected term of the option, risk-free interest rate, expected volatility and dividend yield of the option. Fair value of restricted stock, restricted stock units and performance share units on the grant date is equal to the market price of RigNet’s common stock on the date of grant. Our policy is to recognize compensation expense for service-based awards on a straight-line basis over the requisite service period of the entire award. Stock-based compensation expense is based on awards ultimately expected to vest.

Taxes

Current income taxes are determined based on the tax laws and rates in effect in the jurisdictions and countries that we operate in and revenue is earned. Deferred income taxes reflect the tax effect of net operating losses, foreign tax credits and the tax effects of temporary differences between the carrying amount of assets and liabilities for financial statement and income tax purposes, as determined under enacted tax laws and rates. Valuation allowances are established when management determines that it is more likely than not that some portion or the entire deferred tax asset will not be realized. The financial effect of changes in tax laws or rates is accounted for in the period of enactment.

From time to time, we engage in transactions in which the tax consequences may be subject to uncertainty. In the normal course of business, we prepare and file tax returns based on interpretation of tax laws and regulations, which are subject to examination by various taxing authorities. Such examinations may result in future tax and interest assessments by these taxing authorities. We evaluate our tax positions and recognize only tax benefits for financial purposes that, more likely than not, will be sustained upon examination, including resolutions of any related appeals or litigation processes, based on the technical merits of the position.

We have elected to include income tax related interest and penalties as a component of income tax expense.

On December 22, 2017 the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (The Tax Act), making broad and complex changes to the U.S. tax code.

The SEC staff issued SAB 118, which provides guidance on accounting for the tax effects of the Tax Act. SAB 118 provides a measurement period that should not extend beyond one year from the Tax Act enactment date for companies to complete the accounting under ASC 740. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Tax Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain income tax effects of the Tax Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of the Tax Act.

We have completed the accounting for the income tax effects of the Tax Act based on current regulations and available information. Any additional guidance issued by the IRS could impact our recorded amounts in future periods.

New Accounting Pronouncements

No standard implemented during 2018 or 2017 had a material effect on our financial position, cash flow or results of operations. See our audited consolidated financial statements and the notes thereto included in this Annual Report on Form10-K for more details regarding our implementation and assessment of new accounting standards.

Results of Operations

The following table sets forth selected financial and operating data for the periods indicated.

The following represents selected financial operating results for our segments:

NOTE: Consolidated balances include the segments above along with corporate activities and intercompany eliminations.

Years Ended December 31, 2018 and 2017

Revenue.Revenue increased by $34.0 million, or 16.6%, to $238.9 million for the year ended December 31, 2018 from $204.9 million for the year ended December 31, 2017. Revenue increased in all segments. The 2018 acquisitions of Auto-Comm, SAFCON and Intelie contributed revenue of $17.7 million for the year ended December 31, 2018. The Systems Integration segment increased $16.5 million, or 66.1%, primarily due to $13.0 million from the acquisition of Auto-Comm and SAFCON and increased activity against a growing backlog of Systems Integration projects. The Apps & IoT segment increased $10.1 million, or 64.6%, due to our focus on growth of the application layer and IoT space including $2.2 million from the acquisition of Intelie, $1.1 million from the acquisition of Auto-Comm and SAFCON and $4.7 million from owning ESS for the full year ended December 31, 2018 compared to five months in 2017. The MCS segment increased $7.3 million, or 4.5%, due to increased average site count coupled with $1.4 million from the acquisition of Auto-Comm and SAFCON and $2.3 million from owning DTS for the full year ended December 31, 2018 compared to two months in 2017.

Cost of Revenue (excluding depreciation and amortization).Cost of revenue (excluding depreciation and amortization) increased by $15.4 million, or 11.8%, to $146.6 million for the year ended December 31, 2017 from $131.2 million for the year ended December 31, 2018. Cost of revenue (excluding depreciation and amortization) increased in the Systems Integration segment by $9.4 million due to the acquisition of Auto-Comm and SAFCON and increased activity of Systems Integration projects. Cost of revenue (excluding depreciation and amortization) increased in the MCS segment by $3.4 million due to serving an increased site count. Cost of revenue (excluding depreciation and amortization) increased in the Apps & IoT segment by $2.6 million as we invested in our strategy of expanding of the application layer and IoT space including the acquisition of Intelie and ESS.

Depreciation and Amortization.Depreciation and amortization expenses increased by $2.3 million to $33.2 million for the year ended December 31, 2018 from $30.8 million for the year ended December 31, 2017. The increase is primarily attributable to additions to property, plant and equipment and intangibles from acquisitions and capital expenditures.

Selling and Marketing.Selling and marketing expenses increased by $4.5 million to $12.8 million for the year ended December 31, 2018 from $8.3 million for the year ended December 31, 2017. This increase was due to investments made towards our growth strategy including increased sales personnel costs, marketing strategy costs and our sales incentive plan (SIP), which increased with revenue.

Change in fair value ofearn-out/contingent consideration.The $3.5 million of expense and $0.3 million of gain, in the years ended December 31, 2018 and 2017, respectively, for change in fair value ofearn-out/contingent consideration is detailed in Note 8 of the Notes to Consolidated Financial Statements of this Annual Report on Form10-K.

GX dispute.The net $50.6 million of expense for the GX dispute in the year ended December 31, 2018 is detailed in in Note 9 of the Notes to Consolidated Financial Statements and in Item 3, Legal Proceedings of this Annual Report on Form 10-K.

General and Administrative.General and administrative expenses increased by $8.4 million to $53.2 million for the year ended December 31, 2018 from $44.8 million for the year ended December 31, 2017. The increase in general and administrative expenses included $4.2 million from acquired business, $2.4 million from bad debt expense, along with other increases from personnel costs and legal expenses.

Income Tax Expense.Our effective income tax rate was 4.2% and (27.3)% for the years ended December 31, 2018 and 2017, respectively. Our effective tax rate is affected by factors including changes in valuation allowances, fluctuations in income across jurisdictions with varying tax rates, and changes in income tax reserves, including related penalties and interest. See Note 13 — “Income Taxes,” to our consolidated financial statements included in this Annual Report on Form10-K for more information regarding the items comprising our effective tax rates.

Years Ended December 31, 2017 and 2016

Revenue.Revenue decreased by $15.7 million, or 7.1%, to $204.9 million for the year ended December 31, 2017 from $220.6 million for the year ended December 31, 2016. This decrease was driven by lower MCS revenues, partially offset by an increase in the Apps & IoT and Systems Integration segments. MCS segment revenue decreased $28.3 million, or 14.7%, which was primarily due to decreasedrevenue-per-site from offshore drilling rigs and decreased average offshore sites served partially offset by $1.9 million from the acquisition of DTS. The decreasedrevenue-per-site from offshore drilling rigs is primarily due to decreased multi-tenancy ratios from operators on offshore drilling rigs. Decreased multi-tenancy ratios from operators reduces the opportunity to serve the operator and earn additional revenue until drilling rigs are subsequently contracted for service. Although we were encouraged by the recent increase in offshore drilling rig site count from 175 as of December 31, 2016 to 182 as of December 31, 2017, the average site count decreased from 203 for the year ended December 31, 2016 to 178 for the year ended December 31, 2017. The decrease of 25 average offshore drilling sites served during the year was primarily due to offshore drilling rigs we previously served being cold-stacked or scrapped, partially offset by new sales wins. Revenue continues to be impacted by previously announced reductions in offshore drilling. Apps & IoT segment revenue increased $9.1 million, or 140.6%, due to our growth strategy which focuses on growth into the application layer and IoT space including the acquisition of ESS, which contributed $3.2 million. Systems Integration segment revenue increased $3.4 million, or 15.9%, due to increased activity of Systems Integration projects.

Cost of Revenue (excluding depreciation and amortization).Cost of revenue (excluding depreciation and amortization) increased by $1.4 million, or 1.1%, to $131.2 million for the year ended December 31, 2017 from $129.8 million for the year ended December 31, 2016. Cost of revenue (excluding depreciation and amortization) decreased in the MCS segment by $10.4 million primarily due to reductions in ongoing expenses partially offset by the acquisition of DTS. Cost of revenue increased in the Systems Integration segment by $3.7 million due to increased activity of Systems Integration projects. Cost of revenue increased in the Apps & IoT segment by $8.0 million as we invested in our strategy of expanding into the application layer andinternet-of-things space including the acquisition of ESS and Cyphre.

Depreciation and Amortization.Depreciation and amortization expenses decreased by $2.7 million to $30.8 million for the year ended December 31, 2017 from $33.6 million for the year ended December 31, 2016. The decrease was primarily attributable to lower levels of capital expenditures in recent years, partially offset by additions to property, plant and equipment and intangibles from acquisitions.

Selling and Marketing.Selling and marketing expenses increased by $1.2 million to $8.3 million for the year ended December 31, 2017 from $7.2 million for the year ended December 31, 2016. This increase was due to investing in our growth strategy including more sales and marketing personnel costs.

Change in fair value ofearn-out/contingent consideration.The $0.3 million and $1.3 million of gain, in the years ended December 31, 2017 and 2016, respectively, for change in fair value ofearn-out/contingent consideration is detailed in Note 8 of the Notes to Consolidated Financial Statements of this Annual Report on Form10-K.

General and Administrative.General and administrative expenses decreased by $8.6 million to $44.8 million for the year ended December 31, 2017 from $53.5 million for the year ended December 31, 2016. General and administrative costs decreased in the MCS and Systems Integration segments due to reductions in ongoing expenses partially offset by the acquisition of DTS. General and administrative costs increased in the Apps & IoT segment due to the acquisition of Cyphre and ESS.

Income Tax Expense.Our effective income tax rate was (27.3)% and (106.5)% for the years ended December 31, 2017 and 2016, respectively. Our effective tax rates are affected by factors including changes in the valuation allowance related to operating in loss jurisdictions for which a benefit cannot be claimed, fluctuations in income across international jurisdictions with varying tax rates, and changes in income tax reserves. See Note 13 — “Income Taxes,” to our consolidated financial statements included in this Annual Report on Form10-K for more information regarding the items comprising our effective tax rates.

Liquidity and Capital Resources

At December 31, 2018, we had working capital, including cash, of $2.2 million.

Over the past three years, annual capital expenditures have ranged from $13.6 million to $30.1 million. Based on our current expectations, we believe our liquidity and capital resources will be sufficient for the conduct of our business and operations for the foreseeable future. We may also use a portion of our available cash to finance growth through the acquisition of, or investment in, businesses, products, services or technologies complementary to our current business, through selective mergers, acquisitions, joint ventures or otherwise, or to pay down outstanding debt.

After settlement of intercompany payables and notes at December 31, 2018, there is no available cash in foreign subsidiaries available for repatriation to our domestic parent. No deferred tax liability has been recognized as of December 31, 2018 for those earnings that are not considered permanently reinvested.

During the next twelve months, we expect our principal sources of liquidity to be cash flows from operating activities, cash and cash equivalents, availability under our credit agreement and additional financing activities we may pursue, which may include debt or equity offerings. In forecasting our cash flows we have considered factors including contracted and expected services for customers, and contracted and available satellite bandwidth.

While we believe we have sufficient liquidity and capital resources to meet our current operating requirements, the GX dispute and expansion plans, we may elect to pursue additional expansion opportunities within the next year which could require additional financing, either debt or equity.

Beyond the next twelve months, we expect our principal sources of liquidity to be cash flows provided by operating activities, cash and cash equivalents on hand, availability under our credit agreement and additional financing activities we may pursue, which may include debt or equity offerings.

Currently, the Norwegian kroner, the British pound sterling and the Brazilian real are the foreign currencies that could materially impact our liquidity. We presently do not hedge these risks, but evaluate financial risks on a regular basis and may utilize financial instruments in place in the future if deemed necessary. During the years ended December 31, 2018, 2017 and 2016, 91.6%, 90.7% and 85.4% of our revenue was denominated in U.S. dollars, respectively.

Operating Activities

Net cash provided by operating activities was $7.7 million for the year ended December 31, 2018 compared to $29.2 million for the year ended December 31, 2017. The decrease in cash provided by operating activities during 2018 of $21.6 million was primarily due to the timing of collecting receivables coupled with increased operating loss partially offset by the timing of the payment of accounts payable.

Net cash provided by operating activities was $29.2 million for the year ended December 31, 2017 compared to $39.2 million for the year ended December 31, 2016. The decrease in cash provided by operating activities during 2017 of $9.9 million was primarily due to decreased operating activity partially offset by the timing of the payment of accounts payable.

Our cash provided by operations is subject to many variables including the volatility of the oil and gas industry and the demand for our services. Other factors impacting operating cash flows include the availability and cost of satellite bandwidth, as well as the timing of collecting our receivables. Our future cash flow from operations will depend on our ability to increase our contracted services through our sales and marketing efforts while leveraging our contracted satellite and other communication service costs and the outcome of the GX dispute.

Investing Activities

Net cash used in investing activities was $34.2 million, $50.0 million and $18.3 million in the years ended December 31, 2018, 2017 and 2016, respectively. Of these amounts $30.1 million, $18.3 million, and $13.6 million, respectively, were for capital expenditures, an increase of $11.8 million and $4.6 million for the years ended December 31, 2018 and 2017, respectively, compared to each of the respective prior periods. We expect our 2019 capital expenditures to be focused on success-based growth, the buildout of our LTE network in the Gulf of Mexico and the buildout of our Lafayette, Louisiana office, which will consolidate multiple Louisiana facilities into one facility.

Net cash used in investing activities during the year ended December 31, 2018 included $5.2 million paid net of cash acquired in connection with acquisitions consisting of $1.8 million for Auto-Comm and SAFCON net of cash acquired and $3.2 million for Intelie. Net cash used in investing activities during the year ended December 31, 2017 included $32.2 million paid in connection with acquisitions consisting of $4.9 million for Cyphre, $5.1 million for DTS and $22.2 million for ESS.

Financing Activities

Net cash provided by financing activities was $11.9 million in the year ended December 31, 2018. Net cash used in financing activities was $2.8 million and $15.4 million in the years ended December 31, 2017 and 2016 respectively.

Net cash provided by financing activities for the year ended December 31, 2018 included draws of $23.8 million on our revolving credit facility partially offset by $5.1 million in principal payments on our long-term debt. Additionally, we paid the $8.0 million TECNOR earnout in July 2018, of which $6.4 million is recorded as cash used in financing activities and $1.6 million is recorded as cash used in operating activities. The Company received proceeds from the issuance of common stock upon the exercise of stock options of $1.0 million offset by $1.2 million for stock withheld to cover employee taxes on stock-based compensation.

Cash used in financing activities for the year ended December 31, 2017 included $18.2 million in principal payments on our long-term debt partially offset by draws of $15.0 million on our revolving credit facility. This was partially offset by $0.8 million in proceeds from the issuance of common stock upon the exercise of stock options.

Cash used in financing activities for the year ended December 31, 2016 includes $16.6 million in principal payments on our long-term debt consisting of $8.6 million of principal payments on the Term Loan and $8.0 million on the revolving credit facility. This was partially offset by $1.7 million in proceeds from the issuance of common stock upon the exercise of stock options.

Credit Agreement

We have a $15.0 million term loan facility (Term Loan) and an $85.0 million revolving credit facility (RCF), which includes a $25.0 million sublimit for the issuance of commercial and standby letters of credit and performance bonds.

Both the Term Loan and RCF bears an interest rate of LIBOR plus a margin ranging from 1.75% to 2.75%, based on a consolidated leverage ratio defined in the credit agreement. Interest is payable monthly and principal installments of $1.25 million under the Term Loan are due quarterly, with the balance due November 6, 2020.

The weighted average interest rate for the years ended December 31, 2018 and 2017 was 4.8% and 3.3%, respectively, with an interest rate of 5.3% at December 31, 2018. As of December 31, 2018, the outstanding principal amount of the Term Loan was $10.0 million, excluding the impact of unamortized deferred financing costs. As of December 31, 2018, $67.2 million in draws on the RCF remain outstanding.

The credit agreement contains certain covenants and restrictions, including restricting the payment of cash dividends when under default and maintaining certain financial covenants such as a consolidated leverage ratio, defined in the credit agreement, of less than or equal to 2.75 to 1.00 and a consolidated fixed charge coverage ratio of not less than 1.25 to 1.00. If any default occurs related to these covenants that was not cured or waived, the unpaid principal and any accrued interest can be declared immediately due and payable. The facilities under the credit agreement are secured by substantially all our assets.

As of December 31, 2018, we believe we were in compliance with all covenants. We will continue to monitor our covenant compliance and intend to adjust our capital strategy, as needed. However, our ability to maintain compliance with these covenants is also dependent on our future financial performance and market conditions, which may vary from current expectations.

Updated Credit Agreement

On February 13, 2019, we entered into the first amendment to the third amended and restated credit agreement (Updated Credit Agreement) with four participating financial institutions. We refinanced $30.0 million of outstanding draws under the existing $85.0 million RCF with a new $30.0 million term out facility. The Updated Credit Agreement requires a $45.0 million reserve (Specified Reserve) under the RCF that will be released and made available for borrowing for payment of monetary damages from the GX dispute. The Updated Credit Agreement provides for a $15.0 million term loan facility, a $30.0 million term out facility and an $85.0 million revolving credit facility. The revolving credit facility and term out facility mature on April 6, 2021. The term loan facility matures on December 31, 2020.

As of March 1, 2019, and after giving effect to the First Amendment, the outstanding principal amount of the Term Loan was $10.0 million, the outstanding principal amount of the Term Out Loan was $30.0 million, and the outstanding draws on the RCF were $37.2 million with available amounts under the RCF subject to the Specified Reserve.

Under the Updated Credit Agreement, the term loan facility, the term out facility and the revolving credit facility bear interest at a rate of LIBOR plus a margin ranging from 1.75% to 3.00% based on a consolidated leverage ratio defined in the Updated Credit Agreement. Interest is payable monthly and principal installments of $1.25 million under the term loan facility are due quarterly. Principal installments of $1.5 million are due quarterly under the term out facility beginning June 30, 2019. The revolving credit facility contains asub-limit of up to $25.0 million for commercial andstand-by letters of credit.

Our Updated Credit Agreement contains certain covenants and restrictions, including restricting the payment of cash dividends under default, and maintaining certain financial covenants such as a consolidated fixed charge coverage ratio of not less than 1.25 to 1.00 as of December 31, 2018. Additionally, the Updated Credit Agreement requires a consolidated leverage ratio, as defined in the Updated Credit Agreement, of less than or equal to 2.75 to 1.00 as of December 31, 2018. The consolidated leverage ratio increases to 3.25 to 1.00 for four quarters starting in the quarter that we make a final irrevocable payment of all monetary damages from the GX dispute. The consolidated leverage ratio then decreases to 3.00 to 1.00 for three quarters, and then decreases to 2.75 to 1.00 for all remaining quarters. If any default occurs related to these covenants that is not cured or waived, the unpaid principal and any accrued interest can be declared immediately due and payable. The facilities under the Updated Credit Agreement are secured by substantially all our assets.

Off-Balance Sheet Arrangements

We have not engaged in anyoff-balance sheet arrangements.

Contractual Obligations and Commercial Commitments

At December 31, 2018, we had contractual obligations and commercial commitments as follows:

As of December 31, 2018, we have accrued the GX dispute ($50.8 million). This is subject to change in Phase II of the arbitration; therefore, such amounts are not included in the above contractual obligations table. As of December 31, 2018, our other noncurrent liabilities in the Consolidated Balance Sheet consist primarily of the, deferred tax liabilities ($0.7 million), gross unrecognized tax benefits ($16.1 million) and the related gross interest and penalties. At this time, we are unable to make a reasonably reliable estimate of the timing of payments in individual years in connection with these liabilities; therefore, such amounts are not included in the above contractual obligations table.

As of December 31, 2018, there were no outstanding standby letters of credit. There were $1.8 million of performance bonds outstanding.

We have a performance bond facility with a lender in the amount of $1.5 million for our MCS segment. This facility has a maturity date of June 2021. We maintain restricted cash on a dollar for dollar basis to secure this facility.

Non-GAAP Measures

The following table presents a reconciliation of our net loss to Adjusted EBITDA.