Top 100 National Aeronautics and Space Administration Contractors, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	California Institute of Technology 2 awardees Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 611310 Colleges, Universities, and Professional Schools	$2,299,865,373	14.2%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2020.
2	The Boeing Company 17 awardees, including Millennium Space Systems, Inc. and Boeing Aerospace Operations, Inc. Top NAICS codes 336414 Guided Missile and Space Vehicle Manufacturing 336415 Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing 541330 Engineering Services	$1,683,715,290	10.4%	Rank history: #2 in FY2022, #3 in FY2023, #3 in FY2024 and #2 in FY2025; up 1 since FY2020.
3	Space Exploration 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) 481212 Nonscheduled Chartered Freight Air Transportation	$901,638,354	5.6%	Rank history: #3 in FY2022, #2 in FY2023, #2 in FY2024 and #3 in FY2025; up 15 since FY2020.
4	Lockheed Martin Corporation 9 awardees, including Lockheed Martin Integrated Systems, LLC and Astrotech Space Operations, LLC Top NAICS codes 336411 Aircraft Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 336414 Guided Missile and Space Vehicle Manufacturing	$861,587,645	5.3%	Rank history: #4 in FY2022, #4 in FY2023, #4 in FY2024 and #7 in FY2025; down 2 since FY2020.
5	Northrop Grumman Corporation 22 awardees, including Orbital Sciences LLC, ATK Launch Systems LLC and Northrop Grumman Systems Corporation Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 336415 Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing 336414 Guided Missile and Space Vehicle Manufacturing	$764,009,270	4.7%	Rank history: #6 in FY2022, #6 in FY2023, #13 in FY2024 and #9 in FY2025; unchanged since FY2020.
6	Jacobs Engineering Group Inc. 7 awardees, including Amentum Technology, Inc. and Ch2M Hill, 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) 561210 Facilities Support Services	$700,220,897	4.3%	Rank history: #5 in FY2022, #7 in FY2023, #47 in FY2024 and not on the FY2025 list; unchanged since FY2020.
7	Aerojet Rocketdyne Holdings, Inc. 3 awardees, including Aerojet Rocketdyne of DE, Inc., Aerojet Rocketdyne, Inc. and Arde Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 336415 Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing	$451,947,625	2.8%	Rank history: #9 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
8	Kbr, Inc. 4 awardees, including KBR Wyle Services, LLC and Kord Technologies, LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services 517919 All Other Telecommunications	$338,434,008	2.1%	Rank history: #7 in FY2022, #10 in FY2023, #22 in FY2024 and not on the FY2025 list; unchanged since FY2020.
9	The Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory 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) 611310 Colleges, Universities, and Professional Schools	$263,687,990	1.6%	Rank history: #8 in FY2022, #5 in FY2023, #16 in FY2024 and not on the FY2025 list; up 1 since FY2020.
10	Science Applications International Corporation 4 awardees, including Engility Services, LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541512 Computer Systems Design Services 541330 Engineering Services	$255,001,280	1.6%	Rank history: #11 in FY2022, #12 in FY2023, #26 in FY2024 and #41 in FY2025; up 7 since FY2020.
11	Blue Origin Federation, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$252,615,202	1.6%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
12	Science Systems and Applications, 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) 541330 Engineering Services	$217,102,705	1.3%	Rank history: #13 in FY2022, #14 in FY2023, #15 in FY2024 and #17 in FY2025; up 1 since FY2020.
13	Leidos Holdings, Inc. 7 awardees, including Dynetics, Inc. and Leidos, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541690 Other Scientific and Technical Consulting Services 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing	$208,852,706	1.3%	Rank history: #21 in FY2022, #39 in FY2023, #48 in FY2024 and #44 in FY2025; up 2 since FY2020.
14	RTX Corporation 21 awardees, including Hamilton Sundstrand Space Systems International, Inc., Raytheon Company and Hamilton Sundstrand Corporation Top NAICS codes 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing 541512 Computer Systems Design Services 541330 Engineering Services	$202,132,967	1.2%	Rank history: #14 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
15	HP Enterprise Services LLC 4 awardees, including Peraton Inc. Top NAICS codes 517919 All Other Telecommunications 541519 Other Computer Related Services 541511 Custom Computer Programming Services	$201,511,173	1.2%	Rank history: #12 in FY2022, #11 in FY2023, #32 in FY2024 and not on the FY2025 list; up 4 since FY2020.
16	Arctic Slope Regional Corporation 7 awardees, including Arctic Slope Technical Services, Inc., Inuteq, LLC and Asrc Federal Data Solutions, LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541513 Computer Facilities Management Services 541512 Computer Systems Design Services	$179,630,116	1.1%	Rank history: #15 in FY2022, #35 in FY2023, #38 in FY2024 and #15 in FY2025; down 4 since FY2020.
17	Syncom Space Services LLC Top NAICS codes 561210 Facilities Support Services	$171,595,044	1.1%	Rank history: #16 in FY2022, #18 in FY2023, #37 in FY2024 and not on the FY2025 list; down 1 since FY2020.
18	Southwest Research Institute Top NAICS codes 541330 Engineering Services 336414 Guided Missile and Space Vehicle Manufacturing 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$145,818,123	0.9%	Rank history: #27 in FY2022, #34 in FY2023, #20 in FY2024 and #21 in FY2025; up 6 since FY2020.
19	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 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)	$132,617,607	0.8%	Rank history: #25 in FY2022, #46 in FY2023, #79 in FY2024 and not on the FY2025 list; up 8 since FY2020.
20	Association of Universities for Research In Astronomy, Inc. 2 awardees Top NAICS codes 333314 Optical Instrument and Lens Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$128,376,766	0.8%	Rank history: #10 in FY2022, #15 in FY2023, #12 in FY2024 and #12 in FY2025; down 6 since FY2020.
21	The Regents of the University of Colorado 3 awardees 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) 541720 Research and Development in the Social Sciences and Humanities	$104,605,126	0.6%	Rank history: #20 in FY2022, #28 in FY2023, #28 in FY2024 and #26 in FY2025; up 4 since FY2020.
22	State of California Controllers Office 17 awardees, including The Regents of the University of California, University of California, LOS Angeles and University of California, San Diego Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$103,587,452	0.6%	Rank history: #17 in FY2022, #20 in FY2023, #72 in FY2024 and not on the FY2025 list; up 13 since FY2020.
23	Astrobotic Technology Inc. Top NAICS codes 481212 Nonscheduled Chartered Freight Air Transportation 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$100,269,653	0.6%	Rank history: #18 in FY2022, #32 in FY2023, not on the FY2024 list and #65 in FY2025; unchanged since FY2020.
24	Universities Space Research Association Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541612 Human Resources Consulting Services	$88,920,218	0.5%	Rank history: #40 in FY2022, not on the FY2023 list, #81 in FY2024 and #96 in FY2025; down 2 since FY2020.
25	The Aerospace Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$86,682,138	0.5%	Rank history: #28 in FY2022, #22 in FY2023, #21 in FY2024 and #22 in FY2025; up 12 since FY2020.
26	Government of the United States 3 awardees, including Smithsonian Institution and Federal Prison Industries, 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) 442110 Furniture Stores	$86,580,194	0.5%	Rank history: #23 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
27	Alcyon Technical Services (Ats) JV, LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 561210 Facilities Support Services	$86,009,037	0.5%	Rank history: #32 in FY2022, #33 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
28	Teledyne Technologies Incorporated 6 awardees, including Teledyne Brown Engineering, Inc., Teledyne Energy Systems, Inc. and Teledyne Digital Imaging US, 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) 333314 Optical Instrument and Lens Manufacturing	$85,363,568	0.5%	Rank history: #36 in FY2022, #27 in FY2023, #29 in FY2024 and #33 in FY2025; up 50 since FY2020.
29	Amentum Spaceport LLC Top NAICS codes 561210 Facilities Support Services	$84,273,626	0.5%	Rank history: not on the FY2022–FY2023 lists, #49 in FY2024 and not on the FY2025 list; up 3 since FY2020.
30	Intuitive Machines, LLC Top NAICS codes 481212 Nonscheduled Chartered Freight Air Transportation 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$81,903,446	0.5%	Rank history: #22 in FY2022, #42 in FY2023, #24 in FY2024 and #90 in FY2025; up 26 since FY2020.
31	Space Systems/Loral LLC 3 awardees, including Lanteris Space LLC, Maxar Space Robotics LLC and Macdonald, Dettwiler and Associates Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 336414 Guided Missile and Space Vehicle Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$80,837,798	0.5%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; up 53 since FY2020.
32	Amentum Services, Inc. 2 awardees Top NAICS codes 541380 Testing Laboratories and Services 541330 Engineering Services 561210 Facilities Support Services	$79,327,820	0.5%	Rank history: #34 in FY2022, #50 in FY2023 and not on the FY2024–FY2025 lists; up 47 since FY2020.
33	University System of Maryland 5 awardees, including University of Maryland, College Park, University of Maryland Baltimore County and University of Maryland Center for Environmental Science Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 611310 Colleges, Universities, and Professional Schools	$72,432,555	0.4%	Rank history: #24 in FY2022, #21 in FY2023, #69 in FY2024 and not on the FY2025 list; up 18 since FY2020.
34	L3Harris Technologies, Inc. 11 awardees, including NV5 Geospatial Solutions, Inc., L3Harris Cincinnati Electronics Corporation and Acron Aviation, Inc. Top NAICS codes 333314 Optical Instrument and Lens Manufacturing 811212 Computer and Office Machine Repair and Maintenance 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$72,161,954	0.4%	Rank history: #30 in FY2022, #47 in FY2023, #6 in FY2024 and #11 in FY2025; down 5 since FY2020.
35	Bechtel Corp Through Bechtel National, Inc. Top NAICS codes 236210 Industrial Building Construction	$67,277,500	0.4%	Rank history: #52 in FY2022, #13 in FY2023, #7 in FY2024 and #14 in FY2025; up 17 since FY2020.
36	Barrios Technology, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$62,657,275	0.4%	Rank history: #31 in FY2022, #36 in FY2023, #30 in FY2024 and #42 in FY2025; unchanged since FY2020.
37	Adnet Systems Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services	$59,793,842	0.4%	Rank history: #38 in FY2022, #37 in FY2023, #39 in FY2024 and #30 in FY2025; up 6 since FY2020.
38	Noosphere Venture Partners LP 2 awardees, including Firefly Aerospace Inc. and Firefly Space Transport Services, LLC Top NAICS codes 481212 Nonscheduled Chartered Freight Air Transportation	$58,719,251	0.4%	Rank history: #48 in FY2022, #25 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
39	Computer Sciences Corporation 2 awardees, including PAE Applied Technologies LLC Top NAICS codes 561210 Facilities Support Services 541511 Custom Computer Programming Services	$57,856,151	0.4%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
40	General Electric Company 5 awardees, including GE Flight Efficiency Services, 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) 541330 Engineering Services	$53,992,337	0.3%	Rank history: #49 in FY2022, #40 in FY2023, #33 in FY2024 and #36 in FY2025; up 56 since FY2020.
41	General Dynamics Corporation 5 awardees, including General Dynamics Information Technology, Inc., General Dynamics Mission Systems, Inc. and Gulfstream Aerospace Corporation Top NAICS codes 561110 Office Administrative Services 517919 All Other Telecommunications 541613 Marketing Consulting Services	$53,095,160	0.3%	Rank history: #90 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
42	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$51,247,024	0.3%	Rank history: #35 in FY2022, #30 in FY2023, #34 in FY2024 and #35 in FY2025; up 3 since FY2020.
43	Trax International Corporation Top NAICS codes 561110 Office Administrative Services	$48,229,959	0.3%	Rank history: #37 in FY2022, #48 in FY2023, #57 in FY2024 and #61 in FY2025; down 13 since FY2020.
44	Calista Corp Through Yulista Tactical Services LLC Top NAICS codes 488190 Other Support Activities for Air Transportation	$48,153,023	0.3%	Rank history: #29 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
45	Aerie Aerospace LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$45,249,102	0.3%	Rank history: #42 in FY2022 and not on the FY2023–FY2025 lists; up 14 since FY2020.
46	Manufacturing Technical Solutions, LLC Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$44,206,604	0.3%	Rank history: #57 in FY2022, #54 in FY2023, #55 in FY2024 and not on the FY2025 list; down 7 since FY2020.
47	Bastion Technologies, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 561210 Facilities Support Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$43,505,597	0.3%	Rank history: #45 in FY2022, #45 in FY2023, #54 in FY2024 and #46 in FY2025; up 11 since FY2020.
48	State of Arizona Through University of Arizona 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) 611310 Colleges, Universities, and Professional Schools	$43,251,360	0.3%	Rank history: #51 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2020.
49	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$43,156,724	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	Agile Decision Sciences, LLC Top NAICS codes 561110 Office Administrative Services 541330 Engineering Services	$43,154,880	0.3%	Rank history: #46 in FY2022, #51 in FY2023, #43 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
51	Masten Space Systems Inc. Top NAICS codes 481212 Nonscheduled Chartered Freight Air Transportation 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$42,720,506	0.3%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
52	Air Products and Chemicals, Inc. Top NAICS codes 325120 Industrial Gas Manufacturing 336212 Truck Trailer Manufacturing	$39,991,898	0.2%	Rank history: #39 in FY2022, #16 in FY2023, #18 in FY2024 and #27 in FY2025; up 22 since FY2020.
53	Colsa Corp Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$39,910,441	0.2%	Rank history: #65 in FY2022, not on the FY2023 list, #64 in FY2024 and #63 in FY2025; up 12 since FY2020.
54	Nana Regional Corporation Inc 4 awardees, including Akima Support Operations, LLC, Lockwood Hills Federal LLC and Rivertech LLC Top NAICS codes 561210 Facilities Support Services 561612 Security Guards and Patrol Services 541519 Other Computer Related Services	$37,741,633	0.2%	Rank history: #82 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; up 22 since FY2020.
55	Axient LLC 2 awardees, including Millennium Engineering and Integration Services, 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)	$32,797,083	0.2%	Rank history: #55 in FY2022, #58 in FY2023, #74 in FY2024 and #83 in FY2025; down 15 since FY2020.
56	Business Integra Technology Solutions, Inc. Top NAICS codes 541513 Computer Facilities Management Services	$32,387,930	0.2%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
57	Trident Vantage Systems, LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$31,228,257	0.2%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; up 10 since FY2020.
58	Arizona State University Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 336414 Guided Missile and Space Vehicle Manufacturing	$28,696,396	0.2%	Rank history: #64 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 48 since FY2020.
59	OPR LLC Top NAICS codes 541330 Engineering Services	$28,285,287	0.2%	Rank history: #62 in FY2022, #60 in FY2023, #60 in FY2024 and #59 in FY2025; up 21 since FY2020.
60	Blue Origin LLC 3 awardees, including Blue Origin Washington, LLC and Blue Origin Texas, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 481212 Nonscheduled Chartered Freight Air Transportation 336414 Guided Missile and Space Vehicle Manufacturing	$27,885,227	0.2%	Rank history: not on the FY2022 list, #8 in FY2023, #5 in FY2024 and #4 in FY2025; up 434 since FY2020.
61	The University of Alabama System 3 awardees, including The University of Alabama In Huntsville, University of Alabama At Birmingham and University of Alabama Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 611310 Colleges, Universities, and Professional Schools	$27,404,994	0.2%	Rank history: #59 in FY2022, #52 in FY2023, #77 in FY2024 and not on the FY2025 list; up 40 since FY2020.
62	New Horizons Aeronautics, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$27,316,441	0.2%	Rank history: #71 in FY2022, #90 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
63	National Institute of Aerospace Associates Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$26,677,785	0.2%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
64	JP Donovan Construction Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 238120 Structural Steel and Precast Concrete Contractors 339999 All Other Miscellaneous Manufacturing	$26,593,988	0.2%	Rank history: #44 in FY2022, #74 in FY2023 and not on the FY2024–FY2025 lists; up 436 since FY2020.
65	Massachusetts Institute of Technology Top NAICS codes 611310 Colleges, Universities, and Professional Schools 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541713 Research and Development in Nanotechnology	$26,133,954	0.2%	Rank history: #53 in FY2022, #66 in FY2023, #68 in FY2024 and #57 in FY2025; up 16 since FY2020.
66	A & H-Ambica JV LLC Top NAICS codes 236210 Industrial Building Construction	$25,224,963	0.2%	Rank history: not on the FY2022–FY2024 lists and #82 in FY2025; new, not ranked in FY2020.
67	Made in Space Inc. 2 awardees, including Redwire Space Inc. and Redwire Space Solutions, 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) 541330 Engineering Services	$24,842,943	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	All Points Logistics, LLC Top NAICS codes 541513 Computer Facilities Management Services	$24,670,671	0.2%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
69	Nextera Energy Inc. 3 awardees, including Florida Power & Light Company and Gexa Energy, LP Top NAICS codes 221122 Electric Power Distribution 221112 Fossil Fuel Electric Power Generation	$24,328,889	0.1%	Rank history: not on the FY2022 list, #86 in FY2023 and not on the FY2024–FY2025 lists; up 56 since FY2020.
70	Board of Governers State University System of Florida 9 awardees, including The University of Central Florida Board of Trustees, University of Florida and Florida International University 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) 541720 Research and Development in the Social Sciences and Humanities	$23,897,600	0.1%	Rank history: #69 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; up 51 since FY2020.
71	American-Paragon Protective Services LLC Top NAICS codes 561612 Security Guards and Patrol Services	$22,625,399	0.1%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 17 since FY2020.
72	Techtrans International Inc. Top NAICS codes 541930 Translation and Interpretation Services 493110 General Warehousing and Storage	$22,520,077	0.1%	Rank history: #72 in FY2022, #80 in FY2023, #84 in FY2024 and #71 in FY2025; up 21 since FY2020.
73	Utah State University 2 awardees, including Utah State University Space Dynamics Laboratory Top NAICS codes 541713 Research and Development in Nanotechnology 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$22,268,028	0.1%	Rank history: not on the FY2022–FY2025 lists; up 88 since FY2020.
74	Healtheon, Inc. Top NAICS codes 236210 Industrial Building Construction 236220 Commercial and Institutional Building Construction	$22,018,392	0.1%	Rank history: #33 in FY2022, #49 in FY2023, #76 in FY2024 and #86 in FY2025; up 29 since FY2020.
75	Metis Flight Research Associates, LLC Top NAICS codes 541330 Engineering Services	$21,893,103	0.1%	Rank history: #58 in FY2022, #55 in FY2023, #85 in FY2024 and not on the FY2025 list; up 23 since FY2020.
76	Bay Area Environmental Research Institute	$21,722,999	0.1%	Rank history: #79 in FY2022, #84 in FY2023, #66 in FY2024 and #64 in FY2025; up 15 since FY2020.
77	Ares Holding Corporation 2 awardees, including Ares Technical Services Corporation and Ares Corporation Top NAICS codes 541330 Engineering Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$21,403,452	0.1%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; up 22 since FY2020.
78	UEI DN43UL5HFAT6 Top NAICS codes 541330 Engineering Services	$21,306,147	0.1%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
79	Commonwealth Scientific and Industrial Research Organisation Top NAICS codes 561210 Facilities Support Services	$20,975,102	0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
80	Moog Inc. 6 awardees, including Moog Military Aircraft LLC and Quickset Defense Technologies LLC Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336415 Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$20,739,586	0.1%	Rank history: not on the FY2022–FY2025 lists; up 121 since FY2020.
81	University of Alaska System 3 awardees, including University of Alaska Fairbanks and University of Alaska Anchorage Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 561210 Facilities Support Services	$20,728,622	0.1%	Rank history: #70 in FY2022, #77 in FY2023, #83 in FY2024 and not on the FY2025 list; up 24 since FY2020.
82	Afognak Native Corporation 4 awardees, including Alutiiq Advanced Security Solutions LLC, Alutiiq Essential Services LLC and Alutiiq Commercial Enterprises LLC Top NAICS codes 561612 Security Guards and Patrol Services 541380 Testing Laboratories and Services 561210 Facilities Support Services	$20,448,445	0.1%	Rank history: not on the FY2022–FY2025 lists; up 63 since FY2020.
83	Cornell Technical Services 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)	$20,211,505	0.1%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
84	University of Texas System 12 awardees, including University of Texas At Austin, University of Texas At Arlington and The University of Texas At El Paso Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 517410 Satellite Telecommunications 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$19,645,101	0.1%	Rank history: #75 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 40 since FY2020.
85	The Trustees of Columbia University In the City of New York 2 awardees Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$19,393,573	0.1%	Rank history: #76 in FY2022, #81 in FY2023, #73 in FY2024 and #92 in FY2025; up 5 since FY2020.
86	Catholic University of America (The)	$19,247,783	0.1%	Rank history: not on the FY2022 list, #94 in FY2023, #87 in FY2024 and #70 in FY2025; up 81 since FY2020.
87	Baylor College of Medicine	$19,233,903	0.1%	Rank history: not on the FY2022–FY2023 lists, #99 in FY2024 and not on the FY2025 list; up 25 since FY2020.
88	University Corporation for Atmospheric Research Top NAICS codes 541511 Custom Computer Programming Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$18,301,828	0.1%	Rank history: #81 in FY2022, #96 in FY2023, #96 in FY2024 and not on the FY2025 list; up 9 since FY2020.
89	Four Points Technology, L.L.C. Top NAICS codes 541519 Other Computer Related Services	$18,072,247	0.1%	Rank history: #92 in FY2022, #62 in FY2023, #44 in FY2024 and #52 in FY2025; up 39 since FY2020.
90	Vertex Aerospace LLC Through V2X Aerospace LLC Top NAICS codes 488190 Other Support Activities for Air Transportation	$17,694,349	0.1%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; up 44 since FY2020.
91	Analytical Mechanics Associates, 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)	$17,577,843	0.1%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
92	University of Hawaii Systems 2 awardees, including University of Hawaii Top NAICS codes 517410 Satellite Telecommunications 561210 Facilities Support Services	$17,374,986	0.1%	Rank history: #96 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; up 93 since FY2020.
93	University of Washington 2 awardees Top NAICS codes 611310 Colleges, Universities, and Professional Schools 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$17,014,700	0.1%	Rank history: not on the FY2022–FY2025 lists; up 39 since FY2020.
94	San Jose State University Research Foundation	$16,976,210	0.1%	Rank history: not on the FY2022–FY2023 lists, #100 in FY2024 and #88 in FY2025; unchanged since FY2020.
95	Ensign-Bickford Industries Inc. 4 awardees, including Honeybee Robotics, Ltd. and Ensign-Bickford Aerospace & Defense Company Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541330 Engineering Services 325920 Explosives Manufacturing	$16,918,146	0.1%	Rank history: #54 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
96	Georgia TECH Research Corp 2 awardees Top NAICS codes 611310 Colleges, Universities, and Professional Schools 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$16,664,642	0.1%	Rank history: not on the FY2022–FY2023 lists, #92 in FY2024 and #85 in FY2025; up 27 since FY2020.
97	Victory Solutions, LLC Top NAICS codes 541330 Engineering Services	$16,560,836	0.1%	Rank history: not on the FY2022–FY2023 lists, #94 in FY2024 and #100 in FY2025; up 5 since FY2020.
98	Regents of the University of Michigan 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) 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing	$16,387,719	0.1%	Rank history: not on the FY2022 list, #99 in FY2023, #93 in FY2024 and #78 in FY2025; down 26 since FY2020.
99	Thundercat Technology, LLC Top NAICS codes 541519 Other Computer Related Services	$15,920,733	0.1%	Rank history: not on the FY2022–FY2025 lists; up 12 since FY2020.
100	Seti Institute 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)	$15,645,075	0.1%	Rank history: not on the FY2022–FY2025 lists; up 10 since 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 $16.2 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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