| Name of Subsidiary | State or Other Jurisdiction of Incorporation | |
| 1231670 Ontario Inc. | Canada | |
| AeroElite Limited | United Kingdom | |
| Aerosim Academy, Inc. | Florida | |
| Aerosim Bangkok Company Limited | Thailand | |
| Aerosim Technologies, Inc. | Minnesota | |
| Aerosim Thai Company Limited | Thailand | |
| Airline Placement Limited | United Kingdom | |
| Airline Recruitment Limited | United Kingdom | |
| Applied Defense Solutions, Inc. | Delaware | |
| Applied Kilovolts Limited | United Kingdom | |
| Asian Aviation Training Centre Ltd. | Thailand | |
| ASV Global, L.L.C. | Louisiana | |
| Autonomous Surface Vehicles Limited | United Kingdom | |
| Autonomous Surface Vehicles, LLC | Louisiana | |
| Aviation Communication & Surveillance Systems, LLC | Delaware | |
| Aydin Yazilim ve Elektronik Sanayi A.S. | Turkey | |
| Azimuth Security Pty Ltd | Australia | |
| Azimuth Security Trust | Australia | |
| Azimuth Security, LLC | Florida | |
| Beijing MAPPS-SERI Technology Company Ltd. | China | |
| C.K. Industrial Engineers Limited | United Kingdom | |
| Calzoni S.r.l. | Italy | |
| Combat Advanced Propulsion, LLC | Delaware | |
| CR MSA LLC | Delaware | |
| CTC Aviation Group Limited | United Kingdom | |
| CTC Aviation Holdings Limited | United Kingdom | |
| CTC Aviation International Limited | United Kingdom | |
| CTC Aviation Services Limited | United Kingdom | |
| CTC Aviation Training (UK) Limited. | United Kingdom | |
| Defence Investments Limited | United Kingdom | |
| DMRAC-Aviation Corporation - SGPS, Unipessoal LDA | Portugal | |
| EAA – Escola de Aviação Aerocondor, S.A. | Portugal | |
| Eagle Technology, LLC | Delaware | |
| EDO (UK) Ltd. | United Kingdom | |
| EDO MBM Technology Ltd. | United Kingdom | |
| EDO Western Corporation | Utah | |
| Electrodynamics, Inc. | Arizona | |
| EMC S.r.l. | Italy | |
| ESSCO Collins Limited | Ireland | |
| Exelis Arctic Services | Delaware | |
| Exelis Australia Holdings Pty Ltd | Australia | |
| Exelis Australia Pty Ltd | Australia | |
| Exelis Holdings, Inc. | Delaware | |
| Exmac Automation Limited | United Kingdom | |
| FAST Holdings Limited | United Kingdom | |
| Name of Subsidiary | State or Other Jurisdiction of Incorporation | |
| FAST Training Services Limited | United Kingdom | |
| Felec Services, Inc. | Delaware | |
| Flight Data Services Limited | United Kingdom | |
| Flight Training Acquisitions LLC | Delaware | |
| ForceX, Inc | Tennessee | |
| G Air Advanced Training, Lda | Portugal | |
| G Air II Maintenance, Lda | Portugal | |
| G4U – Gestão de Activos Aeronáuticos, Sociedade, Lda | Portugal | |
| Hamilton BioVentures, L.P. | Delaware | |
| Harris Asia Pacific Sdn. Bhd. | Malaysia | |
| Harris Atlas Systems LLC* | UAE | |
| Harris C4i Pty Ltd | Australia | |
| Harris Canada Systems, Inc. | Canada | |
| Harris Cayman Ltd. | Cayman Islands | |
| Harris Communications (Australia) Pty. Ltd. | Australia | |
| Harris Communications (Spain), S. L. | Spain | |
| Harris Communications FZCO | UAE | |
| Harris Communications GmbH | Germany | |
| Harris Communications Limited | Hong Kong | |
| Harris Communications Malaysia Sdn. Bhd. | Malaysia | |
| Harris Communications MH Spain, S. L. | Spain | |
| Harris Communications Pakistan (Private) Limited | Pakistan | |
| Harris Communications Systems India Private Limited | India | |
| Harris Comunicações e Participações do Brasil Ltda. | Brazil | |
| Harris Defence Ltd. | United Kingdom | |
| Harris Denmark ApS | Denmark | |
| Harris Denmark Holding ApS | Denmark | |
| Harris Geospatial Solutions B.V. | Netherlands | |
| Harris Geospatial Solutions France SARL | France | |
| Harris Geospatial Solutions GmbH | Germany | |
| Harris Geospatial Solutions Italia SRL | Italy | |
| Harris Geospatial Solutions KK | Japan | |
| Harris Geospatial Solutions UK Limited | United Kingdom | |
| Harris Geospatial Solutions, Inc.* | Colorado | |
| Harris Global Communications, Inc. | New York | |
| Harris Holdco LLC | Delaware | |
| Harris International Chile Limitada | Chile | |
| Harris International Holdings, LLC | Delaware | |
| Harris International Saudi Communications | Saudi Arabia | |
| Harris International Venezuela, C.A. | Venezuela | |
| Harris International, Inc. | Delaware | |
| Harris Luxembourg Sarl | Luxembourg | |
| Harris NV | Belgium | |
| Harris Orthogon GmbH | Germany | |
| Harris Pension Management Limited | United Kingdom | |
| Harris Solid-State (Malaysia) Sdn. Bhd. | Malaysia | |
| Harris Systems Limited | United Kingdom | |
| Honeywell TCAS Inc. | Delaware | |
| Interstate Electronics Corporation | California | |
| Jariet Technologies, Inc. | Delaware | |
| L-3 Afghanistan, LLC | Delaware | |
| Name of Subsidiary | State or Other Jurisdiction of Incorporation | |
| L3 Applied Technologies, Inc. | Delaware | |
| L3 Australia Group Pty Ltd | Australia | |
| L3 Aviation Products, Inc. | Delaware | |
| L-3 Brasil Importação, Exportação e Comércio Ltda. | Brazil | |
| L-3 Centaur, LLC | Delaware | |
| L3 Cincinnati Electronics Corporation | Ohio | |
| L3 Commercial Training Solutions Limited | United Kingdom | |
| L-3 Communications AIS GP Corporation | Delaware | |
| L-3 Communications ASA Limited | United Kingdom | |
| L-3 Communications Australia Pty Ltd | Australia | |
| L-3 Communications Flight Capital LLC | Delaware | |
| L-3 Communications Holding GmbH | Germany | |
| L-3 Communications Hong Kong Limited | Hong Kong | |
| L-3 Communications India Private Limited | India | |
| L-3 Communications Integrated Systems L.P. | Delaware | |
| L-3 Communications Investments Inc. | Delaware | |
| L-3 Communications Korea Co., Ltd. | Korea | |
| L-3 Communications Limited | United Kingdom | |
| L-3 Communications Link Simulation and Training UK (Overseas) Limited | United Kingdom | |
| L-3 Communications Singapore Pte. Ltd. | Singapore | |
| L-3 Communications U.K. Ltd. | United Kingdom | |
| L3 CTS Airline Academy (NZ) Limited | New Zealand | |
| L3 CTS Airline and Academy Training Limited | United Kingdom | |
| L-3 Domestic Holdings, Inc. | Delaware | |
| L3 Doss Aviation, Inc. | Texas | |
| L3 Electron Devices, Inc. | Delaware | |
| L3 ESSCO, Inc. | Delaware | |
| L3 Foreign Holdings, Inc. | Delaware | |
| L3 Fuzing and Ordnance Systems, Inc. | Delaware | |
| L-3 Global Holding UK Ltd. | United Kingdom | |
| L3 International Australia Pty Ltd | Australia | |
| L-3 International UK Ltd | United Kingdom | |
| L3 Investments UK Holdings Ltd | United Kingdom | |
| L3 Investments, LLC | Delaware | |
| L3 Kenya LTD | Kenya | |
| L3 Kigre, Inc. | Ohio | |
| L3 Latitude, LLC | Arizona | |
| L3 Magnet-Motor GmbH | Germany | |
| L3 MAPPS INC. | Canada | |
| L3 MAPPS Limited | United Kingdom | |
| L3 MAPPS Sdn. Bhd. | Malaysia | |
| L3 Micreo Pty Limited | Australia | |
| L3 Oceania Pty Limited | Australia | |
| L3 Open Water Power, Inc. | Delaware | |
| L-3 Saudi Arabia LLC | Saudi Arabia | |
| L3 Security and Detection Systems, Inc. | Delaware | |
| L-3 Security Equipment Trading (Beijing) Co., Ltd. | China | |
| L-3 Societá Srl. | Italy | |
| L3 Technologies Australia Group Pty Ltd | Australia | |
| L3 Technologies Canada Group Inc. | Canada | |
| L3 Technologies Canada Inc. | Canada | |
| L3 Technologies Investments Limited | Cyprus | |
| Name of Subsidiary | State or Other Jurisdiction of Incorporation | |
| L3 Technologies MAS Inc. | Canada | |
| L3 Technologies UK Group Ltd | United Kingdom | |
| L3 Technologies, Inc. | Delaware | |
| L-3 Technology & Services UK Ltd | United Kingdom | |
| L3 Unidyne, Inc. | Delaware | |
| L3 Unmanned Systems, Inc. | Texas | |
| L3 Westwood Corporation | Nevada | |
| Linchpin Labs Inc. | Canada | |
| Linchpin Labs Inc. | Delaware | |
| Linchpin Labs Limited | United Kingdom | |
| Linchpin Labs Limited | New Zealand | |
| Linchpin Labs Pty Limited | Australia | |
| L-Tres Comunicaciones Costa Rica, S.A. | Costa Rica | |
| MacDonald Humfrey (Automation) India Private Limited* | India | |
| MacDonald Humfrey (Automation) Limited | United Kingdom | |
| MacDonald Humfrey (Automation) SEA PTE. Ltd. | Singapore | |
| MacDonald Humfrey Automation Middle East Control Systems LLC* | UAE | |
| Manatee Investment, LLC | Delaware | |
| Manu Kai, LLC* | Hawaii | |
| Melbourne Leasing, LLC | Florida | |
| Mustang Technology Group, L.P. | Texas | |
| Narda Safety Test Solutions GmbH | Germany | |
| Narda Safety Test Solutions S.r.l. | Italy | |
| NexGen Communications, LLC | Virginia | |
| Peak Nano Optics, LLC | Delaware | |
| Power Paragon, Inc. | Delaware | |
| Riptide Autonomous Solutions LLC | Delaware | |
| S.C. Harris Assured Communications SRL | Romania | |
| SARL Assured Communications | Algeria | |
| Sovcan Star Satellite Communications Inc. | Canada | |
| SPD Electrical Systems, Inc. | Delaware | |
| Sunshine General Services, LLC | Iraq | |
| TRL Electronics Limited | United Kingdom | |
| TRL Technology Limited | United Kingdom | |
| Wescam Inc. | Canada | |
| Wescam USA, Inc. | Florida | |
