In 2011, we formed a second joint venture with Carrier and completed two additional transactions. In April 2011, Carrier contributed 28 of its company-owned locations in the Northeast U.S. and we contributed 14 locations in the Northeast U.S. In July 2011, we purchased Carrier’s distribution operations in Mexico, which included seven locations. Collectively, the Northeast locations and the Mexico operations are referred to as Carrier Enterprise II. Following formation of this joint venture, we owned a 60% controlling interest. On November 29, 2016, we purchased an additional 10% ownership interest in Carrier Enterprise II, and, on February 13, 2017, we again purchased an additional 10% ownership interest in Carrier Enterprise II, which together increased our controlling interest to 80%.
In 2012, we formed a third joint venture, which we refer to as Carrier Enterprise III, with UTC Canada Corporation, referred to as UTC Canada, an affiliate of Carrier. Carrier contributed 35 of its company-owned locations in Canada to Carrier Enterprise III. We have a 60% controlling interest in Carrier Enterprise III, and UTC Canada has a 40%non-controlling interest.
Combined, the joint ventures with Carrier represented 61% of our revenues for the year ended December 31, 2018. SeeSupplier Concentration in “Business Risk Factors” in Item 1A.
The business and affairs of the joint ventures are controlled, directed, and managed exclusively by Carrier Enterprise I’s, Carrier Enterprise II’s and Carrier Enterprise III’s respective boards of directors (the “Boards”) pursuant to related operating agreements. The Boards have full, complete and exclusive authority, power, and discretion to manage and control the business, property, and affairs of their respective joint ventures, and to make all decisions regarding those matters and to perform activities customary or incident to the management of such joint ventures, including approval of distributions to us, Carrier and UTC Canada. Each Board is composed of five directors, of whom three directors represent our controlling interest and two directors represent Carrier’snon-controlling interest. Matters presented to the Boards for vote are considered approved or consented to upon the receipt of the affirmative vote of at least a majority of all directors entitled to vote with the exception of certain governance matters, which require joint approval.
Customers and Customer Service
Air conditioning and heating contractors and dealers that install HVAC/R products in homes and businesses must be licensed given the highly-regulated nature of the products, refrigerant, natural gas, and building and zoning requirements. We currently serve approximately 90,000 active contractors and dealers who service the replacement and new construction markets for residential and light commercial central air conditioning, heating, and refrigeration systems. No single customer in 2018, 2017 or 2016 represented more than 2% of our consolidated revenues. We focus on providing products where and when the customer needs them, technical support by phone or on site as required, and quick and efficient service at our locations. Increased customer convenience is also provided through mobile applications ande-commerce, which allows customers to access information online 24 hours a day, seven days a week to search for desired products, verify inventory availability, obtain pricing, place orders, check order status, schedule pickup or delivery times, and make payments. We believe we compete successfully with other distributors primarily based on an experienced sales organization, strong service support, maintenance of well-stocked inventories, density of warehouse locations, high quality reputation, broad product lines, and the ability to foresee customer demand for new products.
Key Supplier Relationships
Given our leadership position, Watsco represents a strategic business relationship to many of the leading manufacturers in our industry. Significant relationships with HVAC/R equipment manufacturers include Carrier, Rheem, Goodman, Welbilt, Mitsubishi Electric Corporation, Gree Electric Appliances, Inc., Trane, Midea Group, and Nordyne. In addition, we have substantial relationships with manufacturers ofnon-equipment HVAC/R products, including Chemours, Emerson, Flexible Technologies, Inc., Honeywell, Johns Manville, Mueller, and Owens Corning.
We believe the diversity of products that we sell, along with the manufacturers’ current product offerings, quality, marketability, and brand-name recognition, allow us to operate favorably relative to our competitors. To maintain brand-name recognition, HVAC/R equipment manufacturers provide national advertising and participate with us in cooperative advertising programs and promotional incentives that are targeted to both dealers andend-users. We estimate that the replacement market for residential air conditioning equipment is approximately 85% of industry unit sales in the United States, and we expect this percentage to increase as units installed in the past 20 years wear out or otherwise become practical to replace sooner with newer, more energy-efficient models.
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