On the Record · TransDigm
TransDigm subsidiaries, as it lists them
The subsidiaries TransDigm lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| 4455 Genesee Properties, LLC | Delaware |
| 4455 Genesee Street, LLC | Delaware |
| 17111 Waterview Pkwy LLC | Delaware |
| Acme Aerospace, Inc. | Delaware |
| Adams Rite Aerospace GmbH | Germany |
| Adams Rite Aerospace, Inc. | California |
| AeroControlex Group, Inc. | Delaware |
| Aerosonic LLC | Delaware |
| Airborne Acquisition, Inc. | Delaware |
| Airborne Global, Inc. | Delaware |
| Airborne Holdings, Inc. | Delaware |
| Airborne Systems Canada Ltd. | Canada |
| Airborne Systems NA Inc. | Delaware |
| Airborne Systems North America Inc. | Delaware |
| Airborne Systems North America of CA Inc. | Delaware |
| Airborne Systems North America of NJ Inc. | New Jersey |
| Airborne Systems Pension Trust Limited | United Kingdom |
| Airborne UK Parent Limited | United Kingdom |
| Aircraft Materials Limited | United Kingdom |
| AmSafe Aviation (Chongqing), Ltd. | China |
| AmSafe Bridport (Kunshan) Co., Ltd. | China |
| AmSafe Bridport (Private) Ltd. | Sri Lanka |
| AmSafe Bridport Ltd. | United Kingdom |
| AmSafe Global Holdings, Inc. | Delaware |
| AmSafe Global Services (Private) Limited | Sri Lanka |
| AmSafe, Inc. | Delaware |
| Angus Electronics Co. | Delaware |
| Apical Industries, Inc. | California |
| ARA Deutschland GmbH | Germany |
| ARA Holding GmbH | Germany |
| Arkwin Industries, Inc. | New York |
| Armtec Countermeasures Co. | Delaware |
| Armtec Countermeasures TNO Co. | Delaware |
| Armtec Defense Products Co. | Delaware |
| Ashford Properties, LLC | Delaware |
| Auxitrol SAS | France |
| Auxitrol Weston Mexico, S. de R.L. de C.V. | Mexico |
| Auxitrol Weston Singapore Pte. Ltd. | Singapore |
| Auxitrol Weston USA, Inc. | Delaware |
| Aviation Technologies, Inc. | Delaware |
| Avionic Instruments LLC | Delaware |
| Avionics Specialties, Inc. | Virginia |
| AvtechTyee, Inc. | Washington |
| Beta Transformer Mexico, S. de R.L. de C.V. | Mexico |
| Beta Transformer Technology LLC | Delaware |
| Breeze-Eastern LLC | Delaware |
| Bridport Erie Aviation, Inc. | Delaware |
| Bridport Holdings, Inc. | Delaware |
| Bridport Ltd. | United Kingdom |
| Bridport-Air Carrier, Inc. | Washington |
| Bruce Aerospace Inc. | Delaware |
| Calspan Air Facilities, LLC | New York |
| Calspan Air Services, LLC | New York |
| Calspan ASE Portugal, Inc. | Minnesota |
| Calspan Holdings, LLC | New York |
| CALSPAN JETS LLC | Delaware |
| Calspan Technology Acquisition LLC | Delaware |
| Calspan, LLC | New York |
| CDA InterCorp LLC | Florida |
| CEF Industries, LLC | Delaware |
| Champion Aerospace LLC | Delaware |
| Chelton Avionics Holdings, Inc. | Delaware |
| Chelton Avionics, Inc. | Delaware |
| Chelton CTS Limited | United Kingdom |
| Chelton Defence Communications Limited | United Kingdom |
| Chelton Defense Products, Inc. | Delaware |
| Chelton Limited | United Kingdom |
| CMC Electronics Aurora LLC | Delaware |
| CMC Electronics Inc. | Canada |
| CPI EDB Intermediate Holdings, Inc. | Delaware |
| CPI Electron Device Business, Inc. | Delaware |
| CPI TMD Technologies Limited | United Kingdom |
| CTHC LLC | New York |
| Darchem Engineering Limited | United Kingdom |
| Darchem Holdings Limited | United Kingdom |
| Dart Aerospace B.V. | Netherlands |
| Dart Aerospace Company | Canada |
| Dart Aerospace ULC | Canada |
| Dart Aerospace USA, Inc. | Washington |
| Dart Buyer, Inc. | Delaware |
| Dart Helicopter Services, Inc. | Delaware |
| Dart Intermediate, Inc. | Delaware |
| Dart TopCo, Inc. | Delaware |
| Data Device Corporation | Delaware |
| DDC Electronics K.K. | Japan |
| DDC Electronics Private Limited | India |
| DDC Elektronik, GmbH | Germany |
| Dukes Aerospace, Inc. | Delaware |
| Electromech Technologies LLC | Delaware |
| Elektro-Metall Export GmbH | Germany |
| Elektro-Metall Paks KFT | Hungary |
| EST Defence Company UK Limited | United Kingdom |
| Esterline Acquisition Ltd | United Kingdom |
| Esterline do Brasil Assessoria e Intermediação Ltda | Brazil |
| Esterline Europe Company LLC | Delaware |
| Esterline International Company | Delaware |
| Esterline Technologies Corporation | Delaware |
| Esterline Technologies Europe Limited | United Kingdom |
| Esterline Technologies Global Limited | United Kingdom |
| Esterline Technologies Holdings Limited | United Kingdom |
| Esterline Technologies SGIP LLC | Delaware |
| Esterline Technologies Unlimited | United Kingdom |
| European Antennas Limited | United Kingdom |
| FPT Industries LLC | Delaware |
| F.P.T. Industries Ltd. | United Kingdom |
| Genesee Holdings II, LLC | New York |
| Genesee Holdings III, LLC | New York |
| Genesee Holdings, LLC | New York |
| HarcoSemco LLC | Connecticut |
| Hartwell Corporation | California |
| Heli Tech, Inc. | Oregon |
| Hytek Finishes Co. | Delaware |
| Iceman Holdco, Inc. | Delaware |
| ILC Holdings, Inc. | Delaware |
| Irvin Aerospace Limited | United Kingdom |
| IrvinGQ France SAS | France |
| IrvinGQ Limited | United Kingdom |
| Janco Corporation | California |
| Johnson Liverpool LLC | Delaware |
| King Nutronics, LLC | Delaware |
| Kirkhill Inc. | Delaware |
| Korry Electronics Co. | Delaware |
| Kunshan Shield Restraint Systems, Ltd. | China |
| Leach Holding Corporation | Delaware |
| Leach International Asia-Pacific Ltd | Hong Kong |
| Leach International Corporation | Delaware |
| Leach International Europe S.A.S. | France |
| Leach International Germany GmbH | Germany |
| Leach International Mexico S. de R. L. de C. V. | Mexico |
| Leach International UK Ltd | United Kingdom |
| Leach Mexico Holding LLC | Delaware |
| Leach Technology Group, Inc. | Delaware |
| MarathonNorco Aerospace, Inc. | Delaware |
| Mason Electric Co. | Delaware |
| McKechnie Aerospace (Europe) Ltd. | United Kingdom |
| McKechnie Aerospace DE, Inc. | Delaware |
| McKechnie Aerospace DE, LP | United Kingdom |
| McKechnie Aerospace US LLC | Delaware |
| Mecanismos de Matamoros S. de R.L. de C.V. | Mexico |
| Medtherm Labs, LLC | Delaware |
| Microwave Power Products, Inc. | Delaware |
| NAT Seattle Inc. | Delaware |
| NMC Aerospace, S. de R.L. de C.V. | Mexico |
| NMC Group, Inc. | California |
| Nordisk Asia Pacific Limited | Hong Kong |
| Nordisk Asia Pacific Pte Ltd | Singapore |
| Nordisk Aviation Products (Kunshan) Ltd. | China |
| Nordisk Aviation Products AS | Norway |
| Nordisk Aviation Products LLC | Delaware |
| North Hills Signal Processing Corp. | Delaware |
The list is long; these are the first 150 as the company lists them. From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from TransDigm’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2025-11-12. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.