Top 100 Department of the Air Force Contractors, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	The Boeing Company 40 awardees Top NAICS codes 336411 Aircraft Manufacturing 332993 Ammunition (except Small Arms) Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$12,089,924,159	13.5%	Rank history: #2 in FY2022, #1 in FY2023, #2 in FY2024 and #1 in FY2025; up 1 since FY2020.
2	Lockheed Martin Corporation 56 awardees, including Sikorsky Aircraft Corporation Top NAICS codes 336411 Aircraft Manufacturing 336414 Guided Missile and Space Vehicle Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$10,739,697,513	12.0%	Rank history: #1 in FY2022, #2 in FY2023, #1 in FY2024 and #2 in FY2025; down 1 since FY2020.
3	RTX Corporation 73 awardees, including Raytheon Company and Goodrich Corporation Top NAICS codes 541330 Engineering Services 336414 Guided Missile and Space Vehicle Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$6,613,435,906	7.4%	Rank history: #3 in FY2022, #4 in FY2023, #4 in FY2024 and #3 in FY2025; up 1 since FY2020.
4	Northrop Grumman Corporation 59 awardees, including Northrop Grumman Systems Corp Top NAICS codes 541330 Engineering Services 336414 Guided Missile and Space Vehicle Manufacturing 336411 Aircraft Manufacturing	$5,506,180,372	6.1%	Rank history: #4 in FY2022, #3 in FY2023, #3 in FY2024 and #4 in FY2025; down 1 since FY2020.
5	L3Harris Technologies, Inc. 49 awardees, including L3Harris Technologies Integrated Systems L.P., CAE USA Inc. and L3 Technologies, Inc. Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$2,983,784,498	3.3%	Rank history: #5 in FY2022, #5 in FY2023, #5 in FY2024 and #5 in FY2025; unchanged since FY2020.
6	General Atomic Technologies Corporation 4 awardees, including General Atomics Aeronautical Systems, Inc., General Atomics and General Atomics International Services Corp Top NAICS codes 336411 Aircraft Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541614 Process, Physical Distribution, and Logistics Consulting Services	$1,117,931,408	1.2%	Rank history: #10 in FY2022, #16 in FY2023, #18 in FY2024 and not on the FY2025 list; up 7 since FY2020.
7	Massachusetts Institute of Technology Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$1,052,392,255	1.2%	Rank history: #8 in FY2022, #8 in FY2023, #9 in FY2024 and #11 in FY2025; up 8 since FY2020.
8	The Aerospace Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$1,035,064,904	1.2%	Rank history: #9 in FY2022, #12 in FY2023, #14 in FY2024 and #12 in FY2025; up 3 since FY2020.
9	Sierra Nevada Company, LLC 4 awardees Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 336411 Aircraft Manufacturing 488190 Other Support Activities for Air Transportation	$968,515,037	1.1%	Rank history: #17 in FY2022, #15 in FY2023, #6 in FY2024 and #6 in FY2025; unchanged since FY2020.
10	United Launch Alliance, L.L.C. Through United Launch Services, LLC Top NAICS codes 481212 Nonscheduled Chartered Freight Air Transportation 336414 Guided Missile and Space Vehicle Manufacturing	$948,327,723	1.1%	Rank history: #6 in FY2022, #11 in FY2023, #8 in FY2024 and #27 in FY2025; up 2 since FY2020.
11	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc. Top NAICS codes 541512 Computer Systems Design Services 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$779,491,465	0.9%	Rank history: #12 in FY2022, #10 in FY2023, #12 in FY2024 and #10 in FY2025; up 7 since FY2020.
12	Science Applications International Corporation 10 awardees, including Engility Services, LLC and Asrc Federal Facilities Logistics, LLC Top NAICS codes 541512 Computer Systems Design Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services	$646,319,911	0.7%	Rank history: #13 in FY2022, #9 in FY2023, #15 in FY2024 and #17 in FY2025; up 11 since FY2020.
13	General Dynamics Corporation 26 awardees, including General Dynamics Information Technology, Inc., Gulfstream Aerospace Corporation and General Dynamics Mission Systems, Inc. Top NAICS codes 541330 Engineering Services 541513 Computer Facilities Management Services 541512 Computer Systems Design Services	$630,044,459	0.7%	Rank history: #23 in FY2022, #19 in FY2023, #13 in FY2024 and #7 in FY2025; down 3 since FY2020.
14	General Electric Company 11 awardees, including GE Aviation Systems LLC, General Electric International, Inc. and Unison Industries LLC Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$629,685,604	0.7%	Rank history: #14 in FY2022, #6 in FY2023, #16 in FY2024 and #13 in FY2025; down 6 since FY2020.
15	BAE Systems PLC 21 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Technology Solutions & Services Inc. and BAE Systems Land & Armaments L.P. Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$593,817,743	0.7%	Rank history: #11 in FY2022, #13 in FY2023, #10 in FY2024 and #8 in FY2025; up 2 since FY2020.
16	Leidos Holdings, Inc. 15 awardees, including Leidos, Inc. and Dynetics, Inc. Top NAICS codes 541330 Engineering Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541513 Computer Facilities Management Services	$585,271,697	0.7%	Rank history: #20 in FY2022, #22 in FY2023, #24 in FY2024 and #24 in FY2025; up 3 since FY2020.
17	Patriot Team Top NAICS codes 481211 Nonscheduled Chartered Passenger Air Transportation	$582,436,106	0.6%	Rank history: #15 in FY2022, #14 in FY2023, #17 in FY2024 and not on the FY2025 list; down 1 since FY2020.
18	Space Exploration Technologies Corp. Top NAICS codes 481212 Nonscheduled Chartered Freight Air Transportation 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 517410 Satellite Telecommunications	$579,400,637	0.6%	Rank history: #21 in FY2022, #17 in FY2023, #7 in FY2024 and #9 in FY2025; up 11 since FY2020.
19	Fedex Corp 4 awardees, including Federal Express Corporation and Fedex Supply Chain Distribution System, Inc. Top NAICS codes 481211 Nonscheduled Chartered Passenger Air Transportation 481112 Scheduled Freight Air Transportation 492110 Couriers and Express Delivery Services	$551,718,191	0.6%	Rank history: #22 in FY2022, #18 in FY2023, #20 in FY2024 and not on the FY2025 list; up 39 since FY2020.
20	The Mitre Corporation 2 awardees Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 519190 All Other Information Services	$538,502,704	0.6%	Rank history: #19 in FY2022, #21 in FY2023, #26 in FY2024 and not on the FY2025 list; down 6 since FY2020.
21	CACI International Inc. 20 awardees, including Caci Nss, LLC, Caci, Inc. - Federal and Caci-Iss, LLC Top NAICS codes 517110 Wired Telecommunications Carriers 541330 Engineering Services 517410 Satellite Telecommunications	$446,662,658	0.5%	Rank history: #33 in FY2022, #24 in FY2023, #23 in FY2024 and #15 in FY2025; up 3 since FY2020.
22	Rolls-Royce Military Aero Engines Ltd 3 awardees, including Rolls-Royce Corporation, Rolls-Royce Deutschland Ltd & Co KG and Rolls-Royce North American Technologies Inc. Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 336411 Aircraft Manufacturing	$435,788,627	0.5%	Rank history: #25 in FY2022, #26 in FY2023, #91 in FY2024 and not on the FY2025 list; up 5 since FY2020.
23	Amentum Services, Inc. 4 awardees, including URS Federal Services International, Inc. and Dyncorp International LLC Top NAICS codes 561210 Facilities Support Services 541611 Administrative Management and General Management Consulting Services 336411 Aircraft Manufacturing	$392,864,876	0.4%	Rank history: #16 in FY2022, #25 in FY2023, #22 in FY2024 and not on the FY2025 list; up 269 since FY2020.
24	AECOM 11 awardees, including JT4 LLC, AECOM Technical Services, Inc. and URS Group, Inc. Top NAICS codes 541330 Engineering Services 562910 Remediation Services 541310 Architectural Services	$368,933,393	0.4%	Rank history: #29 in FY2022, #29 in FY2023, #43 in FY2024 and not on the FY2025 list; down 4 since FY2020.
25	Georgia TECH Research Corp 2 awardees, including Georgia TECH Applied Research Corp Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541330 Engineering Services 928110 National Security	$338,880,628	0.4%	Rank history: #26 in FY2022, #32 in FY2023, not on the FY2024 list and #42 in FY2025; up 12 since FY2020.
26	Vertex Aerospace LLC 3 awardees, including V2X Aerospace LLC Top NAICS codes 488190 Other Support Activities for Air Transportation 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$323,998,195	0.4%	Rank history: #40 in FY2022, #59 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
27	Sikorsky Aircraft Corporation Top NAICS codes 336411 Aircraft Manufacturing	$312,835,112	0.3%	Rank history: not on the FY2022–FY2025 lists; up 239 since FY2020.
28	M1 Support Services, L.P. Top NAICS codes 488190 Other Support Activities for Air Transportation 811219 Other Electronic and Precision Equipment Repair and Maintenance 336411 Aircraft Manufacturing	$304,450,618	0.3%	Rank history: #38 in FY2022, #39 in FY2023, #44 in FY2024 and #46 in FY2025; down 2 since FY2020.
29	Analytic Services Inc. 3 awardees, including Advanced Technology International and Professional, Acquisition, and Technical Services, Inc. Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$289,144,322	0.3%	Rank history: #48 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
30	Kbr, Inc. 12 awardees, including KBR Wyle Services, LLC, KBR Services, LLC and Pacific Defense Solutions LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 561210 Facilities Support Services	$288,255,972	0.3%	Rank history: #42 in FY2022, #34 in FY2023, not on the FY2024 list and #38 in FY2025; up 32 since FY2020.
31	Linquest Corporation 2 awardees, including The Perduco Group, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541690 Other Scientific and Technical Consulting Services	$273,006,947	0.3%	Rank history: #45 in FY2022, #37 in FY2023, #36 in FY2024 and not on the FY2025 list; up 8 since FY2020.
32	Dell Federal Systems L.P. 5 awardees, including Dell Marketing L.P., EMC Corporation and Pivotal Software, Inc. Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services 541512 Computer Systems Design Services	$268,131,356	0.3%	Rank history: #24 in FY2022, #33 in FY2023, #27 in FY2024 and not on the FY2025 list; down 4 since FY2020.
33	Puritan Medical Products Company I LP Top NAICS codes 339113 Surgical Appliance and Supplies Manufacturing	$267,469,191	0.3%	Rank history: not on the FY2022–FY2025 lists; up 153 since FY2020.
34	IAP Global Services LLC 3 awardees, including Jpats Logistics Services, LLC, Readiness Management Support LC and IAP Worldwide Services, Inc. Top NAICS codes 488190 Other Support Activities for Air Transportation 561210 Facilities Support Services 336411 Aircraft Manufacturing	$267,258,702	0.3%	Rank history: #49 in FY2022, #38 in FY2023, #67 in FY2024 and not on the FY2025 list; up 6 since FY2020.
35	Arctic Slope Regional Corporation 11 awardees, including Asrc Communications, Ltd., Asrc Federal Field Services, LLC and AS and D, LLC Top NAICS codes 561210 Facilities Support Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services	$261,472,482	0.3%	Rank history: #39 in FY2022, #41 in FY2023, #37 in FY2024 and #22 in FY2025; up 59 since FY2020.
36	Alion Science and Technology Corporation 2 awardees, including HII Mission Technologies Corp Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541330 Engineering Services	$261,222,561	0.3%	Rank history: #85 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
37	Oasis Systems, LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$259,003,894	0.3%	Rank history: #27 in FY2022, #55 in FY2023, #79 in FY2024 and not on the FY2025 list; up 4 since FY2020.
38	Riverside Research Institute 2 awardees, including Applied Research Solutions, Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541990 All Other Professional, Scientific, and Technical Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$253,985,194	0.3%	Rank history: #43 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
39	Nana Regional Corporation Inc 11 awardees, including Rivertech LLC, Akima Logistics Services LLC and Portico Services LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 561210 Facilities Support Services 541330 Engineering Services	$252,768,953	0.3%	Rank history: #57 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 30 since FY2020.
40	Jacobs Engineering Group Inc. 22 awardees, including Amentum Technology, Inc., The Keyw Corporation and Ch2M Hill, Inc. Top NAICS codes 541330 Engineering Services 541512 Computer Systems Design Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$237,657,744	0.3%	Rank history: #44 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2020.
41	Parsons Corporation 11 awardees, including Parsons Government Services Inc., Polaris Alpha, LLC and Ndp, LLC Top NAICS codes 541512 Computer Systems Design Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541511 Custom Computer Programming Services	$227,821,667	0.3%	Rank history: #34 in FY2022, #31 in FY2023, #29 in FY2024 and #32 in FY2025; up 6 since FY2020.
42	Range Generation Next LLC Top NAICS codes 541330 Engineering Services	$222,303,088	0.2%	Rank history: #54 in FY2022, #47 in FY2023, #59 in FY2024 and not on the FY2025 list; up 13 since FY2020.
43	Bechtel Corp Through National Aerospace Solutions, LLC Top NAICS codes 541330 Engineering Services	$217,258,446	0.2%	Rank history: #35 in FY2022, #30 in FY2023, #82 in FY2024 and not on the FY2025 list; up 9 since FY2020.
44	Honeywell International Inc. 34 awardees Top NAICS codes 336411 Aircraft Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$213,419,478	0.2%	Rank history: #7 in FY2022, #7 in FY2023, #11 in FY2024 and #14 in FY2025; down 11 since FY2020.
45	Thermo Electron Corporation 8 awardees, including Nalge Nunc International Corporation, Fisher Scientific Company L.L.C. and Thermo Electron North America LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 325413 In-Vitro Diagnostic Substance Manufacturing 334516 Analytical Laboratory Instrument Manufacturing	$195,488,339	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	BAE Systems Land & Armaments L.P. 15 awardees, including BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Technology Solutions & Services Inc. Top NAICS codes 541330 Engineering Services 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$194,515,628	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	CAE Inc. 8 awardees, including CAE USA Mission Solutions Inc., CAE USA Inc. and Elevate Healthcare, Inc. Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 611512 Flight Training 541990 All Other Professional, Scientific, and Technical Services	$191,886,446	0.2%	Rank history: #47 in FY2022, #57 in FY2023, #41 in FY2024 and #39 in FY2025; up 23 since FY2020.
48	Michael Baker International, LLC 3 awardees, including Sallyport Global Holdings Inc. Top NAICS codes 561210 Facilities Support Services 561990 All Other Support Services 541320 Landscape Architectural Services	$190,792,281	0.2%	Rank history: #36 in FY2022, #40 in FY2023, #45 in FY2024 and not on the FY2025 list; down 17 since FY2020.
49	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$189,183,137	0.2%	Rank history: #96 in FY2022, not on the FY2023–FY2024 lists and #47 in FY2025; new, not ranked in FY2020.
50	Colsa Corp Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services	$173,594,960	0.2%	Rank history: not on the FY2022 list, #94 in FY2023, #100 in FY2024 and not on the FY2025 list; up 9 since FY2020.
51	HP Enterprise Services LLC 14 awardees, including Peraton Inc., Peraton Enterprise Solutions LLC and Peraton Government Communications Inc. Top NAICS codes 541330 Engineering Services 541512 Computer Systems Design Services 517410 Satellite Telecommunications	$172,072,517	0.2%	Rank history: #28 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; up 136 since FY2020.
52	Fluor Corporation 2 awardees, including Fluor Intercontinental, Inc. and Fluor Amec II, LLC Top NAICS codes 561210 Facilities Support Services	$171,764,739	0.2%	Rank history: #31 in FY2022 and not on the FY2023–FY2025 lists; up 304 since FY2020.
53	University of Dayton Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$171,165,762	0.2%	Rank history: #58 in FY2022, #50 in FY2023, #64 in FY2024 and #52 in FY2025; unchanged since FY2020.
54	Defense Energy Center of Excellence	$166,246,336	0.2%	Rank history: #55 in FY2022, #20 in FY2023, #30 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
55	Ball Corp 2 awardees, including BAE Systems Space & Mission Systems Inc. and Ball Aerospace & Technologies Corp. Top NAICS codes 336414 Guided Missile and Space Vehicle Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 336411 Aircraft Manufacturing	$153,977,261	0.2%	Rank history: not on the FY2022 list, #63 in FY2023, #95 in FY2024 and not on the FY2025 list; down 12 since FY2020.
56	Lawrence Livermore National Security, LLC	$151,286,520	0.2%	Rank history: #79 in FY2022, #56 in FY2023, #53 in FY2024 and not on the FY2025 list; up 50 since FY2020.
57	CFM International Inc. Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing	$145,328,162	0.2%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; down 11 since FY2020.
58	Deloitte LLP 2 awardees, including Deloitte & Touche LLP and Deloitte Consulting LLP Top NAICS codes 541211 Offices of Certified Public Accountants 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services	$139,752,122	0.2%	Rank history: #41 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 60 since FY2020.
59	Kratos Defense & Security Solutions, Inc. 9 awardees, including Kratos Unmanned Aerial Systems, Inc., Florida Turbine Technologies, Inc. and Kratos Technology & Training Solutions, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$139,266,880	0.2%	Rank history: #52 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 69 since FY2020.
60	Health Supply US LLC Top NAICS codes 339113 Surgical Appliance and Supplies Manufacturing	$136,750,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Viasat Inc. Top NAICS codes 517410 Satellite Telecommunications 334290 Other Communications Equipment Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$136,232,275	0.2%	Rank history: #56 in FY2022, #60 in FY2023, #63 in FY2024 and #61 in FY2025; up 3 since FY2020.
62	Perspecta Inc. 7 awardees, including Peraton Enterprise Solutions LLC, Peraton Technology Services Inc. and Peraton Services & Solutions Inc. Top NAICS codes 541512 Computer Systems Design Services 517110 Wired Telecommunications Carriers 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$133,903,406	0.1%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
63	Carnegie-Mellon University Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$131,083,108	0.1%	Rank history: #65 in FY2022, #74 in FY2023, not on the FY2024 list and #74 in FY2025; up 3 since FY2020.
64	Textron Inc. 9 awardees, including Textron Aviation Defense LLC, Textron Systems Corporation and Able Aerospace Services, Inc. Top NAICS codes 336411 Aircraft Manufacturing 488190 Other Support Activities for Air Transportation 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$131,045,784	0.1%	Rank history: #53 in FY2022, #64 in FY2023, #75 in FY2024 and #98 in FY2025; down 7 since FY2020.
65	National Air Cargo, Inc. Through National Air Cargo Group, Inc. Top NAICS codes 481211 Nonscheduled Chartered Passenger Air Transportation 481112 Scheduled Freight Air Transportation	$127,598,021	0.1%	Rank history: #32 in FY2022, #49 in FY2023, #85 in FY2024 and not on the FY2025 list; up 166 since FY2020.
66	Credence Management Solutions Limited Liability Company Top NAICS codes 541330 Engineering Services 541519 Other Computer Related Services	$126,057,005	0.1%	Rank history: #63 in FY2022, #75 in FY2023, #78 in FY2024 and not on the FY2025 list; down 6 since FY2020.
67	Rhino Health, Inc. Top NAICS codes 325212 Synthetic Rubber Manufacturing	$126,000,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Blue Star NBR LLC Top NAICS codes 325211 Plastics Material and Resin Manufacturing	$123,120,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Mantech International Corporation 3 awardees, including Mantech Advanced Systems International, Inc., Mantech SRS Technologies, Inc. and Mantech Mgs, Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541690 Other Scientific and Technical Consulting Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$122,544,938	0.1%	Rank history: #72 in FY2022, #83 in FY2023, #56 in FY2024 and #60 in FY2025; up 35 since FY2020.
70	Hologic, Inc. Top NAICS codes 621511 Medical Laboratories 811219 Other Electronic and Precision Equipment Repair and Maintenance	$119,339,253	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Tecolote Research, Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 511210 Software Publishers	$119,325,772	0.1%	Rank history: #64 in FY2022, #58 in FY2023, #65 in FY2024 and #53 in FY2025; up 16 since FY2020.
72	Vectrus Systems Corporation 4 awardees, including V2X Systems LLC, Vectrus Services A / S and Advantor Systems II LLC Top NAICS codes 561210 Facilities Support Services 334290 Other Communications Equipment Manufacturing 561621 Security Systems Services (except Locksmiths)	$118,999,843	0.1%	Rank history: #46 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; down 36 since FY2020.
73	Reliance Test & Technology, LLC Top NAICS codes 541330 Engineering Services	$118,902,651	0.1%	Rank history: #71 in FY2022, #79 in FY2023, #81 in FY2024 and #67 in FY2025; down 10 since FY2020.
74	Huntington Ingalls Industries, Inc. 3 awardees, including HII Mission Technologies Corp, Fulcrum It Services, LLC and HII Mission Driven Innovative Government Solutions Inc. Top NAICS codes 541330 Engineering Services 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541990 All Other Professional, Scientific, and Technical Services	$117,680,698	0.1%	Rank history: #30 in FY2022, #51 in FY2023, #25 in FY2024 and #29 in FY2025; down 13 since FY2020.
75	HX5 LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$117,628,406	0.1%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; up 189 since FY2020.
76	DCS Corporation 2 awardees Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541330 Engineering Services	$117,601,928	0.1%	Rank history: #76 in FY2022, #68 in FY2023, not on the FY2024 list and #95 in FY2025; up 2 since FY2020.
77	HP, Inc. Through HPI Federal LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$116,846,436	0.1%	Rank history: #83 in FY2022, #69 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
78	L3Harris Technologies Integrated Systems L.P. Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$113,658,230	0.1%	Rank history: not on the FY2022–FY2023 lists, #74 in FY2024 and not on the FY2025 list; up 112 since FY2020.
79	Omnicom Group Inc. Through Gsd&M LLC Top NAICS codes 541810 Advertising Agencies	$110,617,175	0.1%	Rank history: #61 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
80	Government of Canada Through Canadian Commercial Corporation Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336411 Aircraft Manufacturing	$109,803,538	0.1%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
81	Orasure Technologies Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$109,000,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Aarcorp 5 awardees, including AAR Government Services, Inc., AAR Manufacturing, Inc. and AAR Allen Services, Inc. Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 488190 Other Support Activities for Air Transportation 321920 Wood Container and Pallet Manufacturing	$106,040,652	0.1%	Rank history: #88 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
83	Remington Arms Company LLC 2 awardees, including Dyncorp International LLC Top NAICS codes 561210 Facilities Support Services 488190 Other Support Activities for Air Transportation 336412 Aircraft Engine and Engine Parts Manufacturing	$104,718,541	0.1%	Rank history: not on the FY2022–FY2025 lists; down 15 since FY2020.
84	Ma Federal, Inc. 2 awardees, including Igov Technologies, Inc. Top NAICS codes 339999 All Other Miscellaneous Manufacturing 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 541519 Other Computer Related Services	$104,065,526	0.1%	Rank history: #74 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; up 308 since FY2020.
85	Advanced Technology Systems Inc. 2 awardees, including Salient Crgt, Inc. Top NAICS codes 541512 Computer Systems Design Services	$99,012,023	0.1%	Rank history: not on the FY2022 list, #93 in FY2023 and not on the FY2024–FY2025 lists; up 88 since FY2020.
86	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$98,741,297	0.1%	Rank history: #70 in FY2022, #48 in FY2023, #50 in FY2024 and #50 in FY2025; down 14 since FY2020.
87	Advanced Technology International	$97,545,313	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Sumaria Systems, LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 517110 Wired Telecommunications Carriers 541330 Engineering Services	$96,431,349	0.1%	Rank history: not on the FY2022–FY2025 lists; up 25 since FY2020.
89	United Safety Technology Inc. Top NAICS codes 339113 Surgical Appliance and Supplies Manufacturing	$96,083,344	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	SMS Data Products Group Inc. Top NAICS codes 517110 Wired Telecommunications Carriers	$95,954,410	0.1%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
91	World Wide Technology Holding Co. Inc. Through World Wide Technology LLC Top NAICS codes 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$94,324,026	0.1%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
92	Ensco Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541519 Other Computer Related Services 541330 Engineering Services	$87,488,505	0.1%	Rank history: not on the FY2022–FY2025 lists; up 46 since FY2020.
93	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$86,069,748	0.1%	Rank history: not on the FY2022–FY2025 lists; up 90 since FY2020.
94	PAE Government Services Inc. 6 awardees, including PAE Aviation and Technical Services LLC, Metis Solutions, LLC and PAE Professional Services, LLC Top NAICS codes 488190 Other Support Activities for Air Transportation 561210 Facilities Support Services 561612 Security Guards and Patrol Services	$85,383,355	0.1%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; up 222 since FY2020.
95	Afognak Native Corporation 11 awardees, including Alutiiq Commercial Enterprises LLC, Mccallie Associates, Inc. and Alutiiq Manufacturing Contractors, LLC Top NAICS codes 561210 Facilities Support Services 511130 Book Publishers 541611 Administrative Management and General Management Consulting Services	$84,506,321	0.1%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; down 6 since FY2020.
96	Mythics, LLC 2 awardees, including Emergent, LLC Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing 511210 Software Publishers	$84,234,179	0.1%	Rank history: #84 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
97	UES Inc. 2 awardees, including Bluehalo, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541711 Research and Development in Biotechnology	$82,876,902	0.1%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
98	Odyssey Systems Consulting Group, Ltd. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 332993 Ammunition (except Small Arms) Manufacturing	$82,605,055	0.1%	Rank history: #92 in FY2022, #45 in FY2023, not on the FY2024 list and #36 in FY2025; down 54 since FY2020.
99	Itsi Gilbane Japan G.K. 2 awardees, including Gilbane Federal and Gilbane Japan GK Top NAICS codes 236220 Commercial and Institutional Building Construction	$81,814,464	0.1%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; down 54 since FY2020.
100	Showa Glove Co. Through Showa Best Glove, Inc. Top NAICS codes 339113 Surgical Appliance and Supplies Manufacturing	$81,284,996	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

How this ranking works

• Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
• Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $89.7 billion obligated before deobligations, so they never pass 100%.
• Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
• Fiscal year 2021 ran Oct 1, 2020 – Sep 30, 2021. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
• Rank changes compare with FY2020. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
• Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2020 takes the color of the rank change beside it.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

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