| Entity Name | State or Country of Incorporation or Organization | |||||||
| AC First, LLC | Delaware | |||||||
| Advanced Range Enterprise Solutions LLC | Delaware | |||||||
| Advanced Range Enterprise Solutions LLC | Delaware | |||||||
| Aeroptic, LLC | Massachusetts | |||||||
| Afghan Holdco LLC | Delaware | |||||||
| Africa Expeditionary Services LLC | Delaware | |||||||
| AGS Sudan Limited | South Sudan | |||||||
| Airport & MRO Facilities Nigeria Limited | Nigeria | |||||||
| Alkali Metal Processing Limited | United Kingdom | |||||||
| Alliance for Space Communications to Enable New Discovery, LLC | Florida | |||||||
| Amazon Finance LLC | Delaware | |||||||
| Amentum (UK) Ltd. | United Kingdom | |||||||
| Amentum Business Support Services Inc. | Philippines | |||||||
| Amentum Commercial Operations, Inc. | Delaware | |||||||
| Amentum Environment & Energy, Inc. | Ohio | |||||||
| Amentum Facility Management UK Ltd. | United Kingdom | |||||||
| Amentum Global Services - Australia Pty Ltd | Australia | |||||||
| Amentum Government Services Holdings LLC | Delaware | |||||||
| Amentum Government Services Holdings Sub LLC | Delaware | |||||||
| Amentum Government Services Parent Holdings LLC | Delaware | |||||||
| Amentum Government Services, Inc. | Delaware | |||||||
| Amentum Holdings LLC | Delaware | |||||||
| Amentum International Holdings UK Ltd. | United Kingdom | |||||||
| Amentum N&E Holdings LLC | Delaware | |||||||
| Amentum N&E UK Holdings Limited | United Kingdom | |||||||
| Amentum National Security Programs, Inc. | Virginia | |||||||
| Amentum Nuclear & Environment Holdings, Inc. | Delaware | |||||||
| Amentum Operaciones Comerciales | Mexico | |||||||
| Amentum Operaciones Comerciales CR | Costa Rica | |||||||
| Amentum Services Canada, Inc. | Canada | |||||||
| Amentum Services Colombia S.A.S. | Colombia | |||||||
| Amentum Services SDN. BHD. | Malaysia | |||||||
| Amentum Services, Inc. | Delaware | |||||||
| Amentum Singapore Pte. Ltd. | Singapore | |||||||
| Amentum Spaceport LLC | Delaware | |||||||
| Amentum Special Mission Services, Inc. | Pennsylvania | |||||||
| Amentum SPV LLC | Delaware | |||||||
| Amentum Technical Services LLC | Delaware | |||||||
| ASCEND Aerospace and Technology LLC | Florida | |||||||
| Augility Pty Limited | Australia | |||||||
| Augility Services Pty Limited | Australia | |||||||
| Automotive Testing Operations, LLC | Delaware | |||||||
| Avicom do Brasil Manutencao de Aeronaves Ltda | Brazil | |||||||
| Blue Canopy Group, LLC | Virginia | |||||||
| Bravour Leistungen GmbH | Germany | |||||||
| Buffalo Group LLC | Delaware | |||||||
| Canadian National Energy Alliance Ltd. | Canada | |||||||
| Canadian Nuclear Laboratories Ltd. | California | |||||||
| Carondelet Energy Readiness LLC | Delaware | |||||||
| Casals & Associates, Inc. | Virginia | |||||||
| Cavendish Dounreay Partnership Limited | United Kingdom | |||||||
| Centra Services Corporation | Massachusetts | |||||||
| Centra Technology, Inc. | Maryland | |||||||
| CH2M Hill BWXT West Valley, L.L.C | Delaware | |||||||
| CH2M HILL GmbH | Germany | |||||||
| CH2M Hill IDC SARL | France | |||||||
| CH2M HILL International Nuclear Services Ltd | United Kingdom | |||||||
| CH2M Hill New York Inc. | New York | |||||||
| CH2M HILL Plateau Remediation Company | Washington | |||||||
| CH2M-WG Idaho, LLC | Idaho | |||||||
| CH2M-WG Idaho, LLC | Idaho | |||||||
| Courage Services, Inc. | Virginia | |||||||
| Critical Mission Services sp. z.o.o (Poland NewCo) | Poland | |||||||
| Culpeper National Security Solutions LLC | Delaware | |||||||
| Cumbria Nuclear Solutions Limited | United Kingdom | |||||||
| Defense Support Services International 3 LLC | Delaware | |||||||
| Defense Support Services International, LLC | Delaware | |||||||
| Delta Bridge, Inc. | Virginia | |||||||
| DTS Aviation Services LLC | Nevada | |||||||
| DynCorp Aerospace Operations LLC | Delaware | |||||||
| DynCorp International Business Services Private Limited | India | |||||||
| DynCorp International LLC | Delaware | |||||||
| DynCorp International Services GmbH | Germany | |||||||
| DynCorp International Services LLC | Virginia | |||||||
| DynCorp LLC | Delaware | |||||||
| DZSP 21 LLC | Delaware | |||||||
| EG&G Defense Materials, Inc. | Utah | |||||||
| Energy, Safety & Risk Consultants (UK) Limited | United Kingdom | |||||||
| Energy, Security and Technology Canada Ltd. | Canada | |||||||
| Energy, Security and Technology LLC (dba ES&T North America) | Delaware | |||||||
| Energy, Security and Technology UK Limited | United Kingdom | |||||||
| Equitas International LLC | Delaware | |||||||
| Fast Reactor Technology Limited | United Kingdom | |||||||
| Federal Network Systems LLC | Delaware | |||||||
| Four Rivers Nuclear Partnership, LLC | Delaware | |||||||
| Future Investment Group LLC | Egypt | |||||||
| GL Systems LLC | Delaware | |||||||
| Global Linguist Solutions LLC | Delaware | |||||||
| Global Linguist Solutions Turkey Tercüme Hizmetleri Limited Şirketi | Turkey | |||||||
| Global Management Services GmbH | Germany | |||||||
| Global Sourcing Solutions | Cayman Islands | |||||||
| Greenline Systems Canada Ulc | Canada | |||||||
| Idaho Environmental Coalition LLC | Delaware | |||||||
| Jacobs Aerospace Test Operations LLC | Delaware | |||||||
| Jacobs Asia K.K. | Japan | |||||||
| Jacobs Australia Pty Limited | Australia | |||||||
| Jacobs Clean Energy France SAS | France | |||||||
| Jacobs Clean Energy International Limited | United Kingdom | |||||||
| Jacobs Clean Energy Limited | United Kingdom | |||||||
| Jacobs Clean Energy s.r.o | Czech Republic | |||||||
| Jacobs Clean Energy SA (PTY) Ltd | South Africa | |||||||
| Jacobs E&C Limited | United Kingdom | |||||||
| Jacobs Field Services Limited | United Kingdom | |||||||
| Jacobs Multiconsult Decommissioning ANS | Norway | |||||||
| Jacobs Slovakia s.r.o. | Slovakia | |||||||
| Jacobs Stobbarts Limited | United Kingdom | |||||||
| Jacobs Technology Inc. | Tennessee | |||||||
| Jacobs Telecommunications Inc. | New Jersey | |||||||
| JT4, LLC | Delaware | |||||||
| Lear Siegler Logistics International, Inc. | Delaware | |||||||
| Macfadden & Associates, Inc. | Virginia | |||||||
| Macfadden International Suarl | Tunisia | |||||||
| McNeil Security, Inc. | Virginia | |||||||
| Mission Conversion Services Alliance, LLC | Delaware | |||||||
| Mission Support and Test Services, LLC | Delaware | |||||||
| Momentum SNC | France | |||||||
| MS Federal Services, Inc. | Nevada | |||||||
| MSFS Holdings US, Inc. | Nevada | |||||||
| MT Holding Corp. | Delaware | |||||||
| National Nuclear Corporation Limited | United Kingdom | |||||||
| National Security Technologies, LLC | Delaware | |||||||
| OneAim | Unincorporated joint venture | |||||||
| Pacific Architects and Engineers, LLC | Delaware | |||||||
| Pacific Operations Maintenance Company | California | |||||||
| PAE (Australia) Pty. Limited | Australia | |||||||
| PAE Applied Technologies International LLC | Delaware | |||||||
| PAE Applied Technologies LLC | Delaware | |||||||
| PAE Canada, Inc. | California | |||||||
| PAE Colombia Ltda. | Colombia | |||||||
| PAE Design and Facility Management | California | |||||||
| PAE Foundation | Bosnia and Herzegovina | |||||||
| PAE Global Support LLC | Delaware | |||||||
| PAE Government Services Colombia S.A.S. | Colombia | |||||||
| PAE Government Services Mexico, S. De R.L. De C.V. | Mexico | |||||||
| PAE Government Services, Inc. | California | |||||||
| PAE Humanitarian Response LLC | Delaware | |||||||
| PAE India Support Center LLP | India | |||||||
| PAE International | California | |||||||
| PAE Justice Support | Virginia | |||||||
| PAE LLC | Delaware | |||||||
| PAE Logistics LLC | California | |||||||
| PAE Services Canada Inc. | Canada | |||||||
| PAE Shared Services LLC | Delaware | |||||||
| PAE Shield Acquisition Company LLC | Delaware | |||||||
| PAE Training Services, LLC | Delaware | |||||||
| PAE Worldwide Incorporated | Delaware | |||||||
| PAE-Perini LLC | Delaware | |||||||
| Phoenix Consulting Group, LLC | Alabama | |||||||
| PUMMA | Unincorporated joint venture | |||||||
| PWR Power Projects Limited | United Kingdom | |||||||
| Quality Systems Engineering Consortium, LLC | California | |||||||
| SafeG | Unincorporated joint venture | |||||||
| Savannah River Completion Alliance, LLC | Delaware | |||||||
| Savannah River Remediation LLC | Delaware | |||||||
| Service Systems (Singapore) Pte. Ltd. | Singapore | |||||||
| Services International LLC | Delaware | |||||||
| Sotera Defense Solutions, Inc. | Delaware | |||||||
| TATE, Incorporated | Maryland | |||||||
| The KeyW Corporation | Maryland | |||||||
| The KeyW Holding Corporation | Maryland | |||||||
| Triple20 LLC | Maryland | |||||||
| UCOR LLC (fka URS-CH2M Oak Ridge, LLC) | Tennessee | |||||||
| United Cleanup Oak Ridge LLC | Delaware | |||||||
| URS Federal Project Services, LLC | Maryland | |||||||
| URS Federal Services International, Inc. | Delaware | |||||||
| USA Repository Services LLC | Delaware | |||||||
| Washington Closure Hanford LLC | Delaware | |||||||
| Washington Demilitarization Company, LLC | Delaware | |||||||
| Washington Government Environmental Services Company LLC | Delaware | |||||||
| Washington Savannah River Company LLC | Delaware | |||||||
| West Valley Cleanup Alliance LLC | Delaware | |||||||
| West Valley Nuclear Services Company LLC | Delaware | |||||||
| WGI Global Inc. | Nevada | |||||||
| Worldwide For General Services, Construction And Engineering Services And Subsistence Services LLC | Iraq | |||||||
| Worldwide Management and Consulting Services LLC | Delaware | |||||||
| Worldwide Recruiting and Staffing Services LLC | Delaware | |||||||
| WSMS-MK LLC | Tennessee | |||||||
