Top 100 Contractors in PSC AR: Space R&D Services, FY2021

Name: Top 100 Contractors in PSC AR: Space R&D Services, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 72% of FY2021 PSC AR contract dollars

Contract obligations: $9,643,907,965 Net of deobligations, by contracts coded PSC AR or a code under it
Contractors: 638 Parent companies with an obligation
Largest contractor: California Institute of Technology $2.28 billion, 22.9% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	California Institute of Technology 2 awardees Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$2,284,969,889	22.9%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2020.
2	The Boeing Company 14 awardees, including Boeing Aerospace Operations, Inc. and HRL Laboratories, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,496,954,300	15.0%	Rank history: #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; up 2 since FY2020.
3	Northrop Grumman Corporation 15 awardees, including Northrop Grumman Systems Corporation, Orbital Sciences LLC and ATK Launch Systems LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) Navy (Department of the Navy)	$948,796,211	9.5%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since FY2020.
4	Lockheed Martin Corporation 10 awardees Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce)	$723,068,662	7.3%	Rank history: #5 in FY2022, #5 in FY2023, #5 in FY2024 and #5 in FY2025; down 2 since FY2020.
5	Space Exploration Technologies Corp. Top agencies NASA (National Aeronautics and Space Administration)	$412,902,414	4.1%	Rank history: #4 in FY2022, #4 in FY2023, #4 in FY2024 and #9 in FY2025; up 11 since FY2020.
6	Jacobs Engineering Group Inc. 3 awardees, including Amentum Technology, Inc. and The Keyw Corporation Top agencies NASA (National Aeronautics and Space Administration) USSOCOM (United States Special Operations Command)	$321,682,808	3.2%	Rank history: #7 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
7	United Launch Alliance, L.L.C. 2 awardees, including United Launch Services, LLC Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$319,345,011	3.2%	Rank history: #9 in FY2022, #12 in FY2023, #15 in FY2024 and #40 in FY2025; up 10 since FY2020.
8	The Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$273,843,301	2.7%	Rank history: #6 in FY2022, #6 in FY2023, #11 in FY2024 and not on the FY2025 list; down 2 since FY2020.
9	Blue Origin Federation, LLC Top agencies NASA (National Aeronautics and Space Administration)	$251,561,944	2.5%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
10	Leidos Holdings, Inc. 5 awardees, including Dynetics, Inc. and Leidos Inc. Top agencies NASA (National Aeronautics and Space Administration)	$139,680,465	1.4%	Rank history: #29 in FY2022, #83 in FY2023, not on the FY2024 list and #75 in FY2025; up 2 since FY2020.
11	Association of Universities for Research In Astronomy, Inc. 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$127,563,813	1.3%	Rank history: #8 in FY2022, #9 in FY2023, #9 in FY2024 and #7 in FY2025; down 3 since FY2020.
12	Ball Corp Through BAE Systems Space & Mission Systems Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$103,373,153	1.0%	Rank history: #16 in FY2022, #13 in FY2023, #13 in FY2024 and not on the FY2025 list; down 2 since FY2020.
13	Astrobotic Technology Inc. Top agencies NASA (National Aeronautics and Space Administration)	$99,062,587	1.0%	Rank history: #10 in FY2022, #20 in FY2023, #86 in FY2024 and #91 in FY2025; up 1 since FY2020.
14	Parsons Corporation 4 awardees, including Space Ground System Solutions, Inc. and Parsons Government Services Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$97,213,759	1.0%	Rank history: #14 in FY2022, #11 in FY2023, #27 in FY2024 and #24 in FY2025; up 35 since FY2020.
15	Intuitive Machines, LLC Top agencies NASA (National Aeronautics and Space Administration)	$81,903,446	0.8%	Rank history: #12 in FY2022, #24 in FY2023, #14 in FY2024 and not on the FY2025 list; up 14 since FY2020.
16	Government of the United States 2 awardees, including Smithsonian Institution Top agencies NASA (National Aeronautics and Space Administration)	$77,390,763	0.8%	Rank history: #13 in FY2022, #19 in FY2023, #49 in FY2024 and not on the FY2025 list; up 3 since FY2020.
17	Ensco Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$74,397,370	0.7%	Rank history: #19 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
18	Bechtel Corp Through Bechtel National, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$67,277,500	0.7%	Rank history: #25 in FY2022, #8 in FY2023, #8 in FY2024 and #8 in FY2025; up 9 since FY2020.
19	The Regents of the University of Colorado 3 awardees Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce) DOI (Department of the Interior)	$63,925,167	0.6%	Rank history: #20 in FY2022, #28 in FY2023, #28 in FY2024 and #27 in FY2025; down 1 since FY2020.
20	University System of Maryland 4 awardees, including University of Maryland, College Park, University of Maryland Baltimore County and University of Maryland Center for Environmental Science Top agencies NASA (National Aeronautics and Space Administration)	$60,678,978	0.6%	Rank history: #15 in FY2022, #15 in FY2023, #41 in FY2024 and not on the FY2025 list; up 8 since FY2020.
21	Adnet Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$59,614,367	0.6%	Rank history: #17 in FY2022, #18 in FY2023, #18 in FY2024 and #14 in FY2025; up 1 since FY2020.
22	Blue Origin Washington, LLC Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$58,769,870	0.6%	Rank history: #58 in FY2022, #7 in FY2023, #6 in FY2024 and #4 in FY2025; up 9 since FY2020.
23	State of California Controllers Office 16 awardees, including The Regents of the University of California, University of California, LOS Angeles and University of California, San Diego Top agencies NASA (National Aeronautics and Space Administration)	$50,808,446	0.5%	Rank history: #18 in FY2022, #23 in FY2023, #50 in FY2024 and not on the FY2025 list; up 2 since FY2020.
24	Noosphere Venture Partners LP Through Firefly Aerospace Inc. Top agencies NASA (National Aeronautics and Space Administration)	$49,899,251	0.5%	Rank history: #24 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
25	Southwest Research Institute Top agencies NASA (National Aeronautics and Space Administration)	$48,623,375	0.5%	Rank history: #22 in FY2022, #22 in FY2023, #22 in FY2024 and #18 in FY2025; down 4 since FY2020.
26	Masten Space Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$42,580,597	0.4%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
27	State of Arizona Through University of Arizona Top agencies NASA (National Aeronautics and Space Administration)	$35,561,265	0.4%	Rank history: #32 in FY2022, #26 in FY2023, #58 in FY2024 and not on the FY2025 list; up 5 since FY2020.
28	Teledyne Technologies Incorporated 3 awardees, including Teledyne Brown Engineering, Inc., Teledyne Energy Systems, Inc. and Teledyne Digital Imaging US, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$35,224,175	0.4%	Rank history: #42 in FY2022, #36 in FY2023, #43 in FY2024 and #54 in FY2025; up 41 since FY2020.
29	Anduril Industries, Inc. Top agencies USSOCOM (United States Special Operations Command) OSD (Office of the Secretary of Defense)	$34,940,000	0.4%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
30	The Aerospace Corporation Top agencies NASA (National Aeronautics and Space Administration) DOE (Department of Energy)	$33,448,049	0.3%	Rank history: #21 in FY2022, #16 in FY2023, #16 in FY2024 and #12 in FY2025; up 28 since FY2020.
31	Kbr, Inc. 4 awardees, including KBR Wyle Services, LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$29,795,801	0.3%	Rank history: #23 in FY2022, #35 in FY2023, #33 in FY2024 and not on the FY2025 list; up 11 since FY2020.
32	National Institute of Aerospace Associates Top agencies NASA (National Aeronautics and Space Administration)	$25,729,119	0.3%	Rank history: #40 in FY2022, #55 in FY2023, not on the FY2024 list and #80 in FY2025; up 13 since FY2020.
33	Space Systems/Loral LLC 3 awardees, including Lanteris Space LLC and Maxar Space Robotics LLC Top agencies NASA (National Aeronautics and Space Administration)	$25,290,370	0.3%	Rank history: #39 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 30 since FY2020.
34	Arizona State University Top agencies NASA (National Aeronautics and Space Administration)	$23,025,194	0.2%	Rank history: #38 in FY2022, #34 in FY2023, #34 in FY2024 and #34 in FY2025; up 22 since FY2020.
35	Universities Space Research Association Top agencies NASA (National Aeronautics and Space Administration)	$22,287,467	0.2%	Rank history: #45 in FY2022, not on the FY2023–FY2024 lists and #90 in FY2025; up 8 since FY2020.
36	The University of Alabama System 2 awardees, including The University of Alabama In Huntsville and University of Alabama Top agencies NASA (National Aeronautics and Space Administration)	$22,056,187	0.2%	Rank history: #30 in FY2022, #27 in FY2023, #29 in FY2024 and not on the FY2025 list; up 18 since FY2020.
37	L3Harris Technologies, Inc. 9 awardees, including L3 Technologies, Inc. Top agencies Commerce (Department of Commerce) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$21,965,392	0.2%	Rank history: #28 in FY2022, #10 in FY2023, #12 in FY2024 and #11 in FY2025; down 2 since FY2020.
38	UEI DN43UL5HFAT6 Top agencies NASA (National Aeronautics and Space Administration)	$21,306,147	0.2%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; up 8 since FY2020.
39	Bay Area Environmental Research Institute Top agencies NASA (National Aeronautics and Space Administration)	$20,483,834	0.2%	Rank history: #36 in FY2022, #49 in FY2023, #94 in FY2024 and #79 in FY2025; up 8 since FY2020.
40	RTX Corporation 14 awardees, including Raytheon Company, Hamilton Sundstrand Space Systems International, Inc. and Hamilton Sundstrand Corporation Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce) USAF (Department of the Air Force)	$19,646,648	0.2%	Rank history: #33 in FY2022, #33 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2020.
41	Baylor College of Medicine Top agencies NASA (National Aeronautics and Space Administration)	$19,233,903	0.2%	Rank history: #51 in FY2022, #39 in FY2023, #38 in FY2024 and #35 in FY2025; up 19 since FY2020.
42	The Johns Hopkins University Applied Physics Laboratory LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$18,399,925	0.2%	Rank history: #37 in FY2022, not on the FY2023 list, #7 in FY2024 and not on the FY2025 list; down 12 since FY2020.
43	Board of Governers State University System of Florida 7 awardees, including The University of Central Florida Board of Trustees, University of Florida and Florida International University Top agencies NASA (National Aeronautics and Space Administration)	$17,559,950	0.2%	Rank history: #52 in FY2022, #48 in FY2023, #73 in FY2024 and not on the FY2025 list; up 22 since FY2020.
44	Catholic University of America (The) Top agencies NASA (National Aeronautics and Space Administration)	$17,119,283	0.2%	Rank history: #46 in FY2022, #40 in FY2023, #30 in FY2024 and #31 in FY2025; up 48 since FY2020.
45	San Jose State University Research Foundation Top agencies NASA (National Aeronautics and Space Administration)	$16,732,060	0.2%	Rank history: #54 in FY2022, #93 in FY2023, not on the FY2024 list and #61 in FY2025; up 3 since FY2020.
46	Utah State University 2 awardees, including Utah State University Space Dynamics Laboratory Top agencies NASA (National Aeronautics and Space Administration)	$16,285,319	0.2%	Rank history: #67 in FY2022, #88 in FY2023, #90 in FY2024 and not on the FY2025 list; up 79 since FY2020.
47	Assurance Technology Corp Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$15,621,310	0.2%	Rank history: #55 in FY2022, #82 in FY2023, #67 in FY2024 and #46 in FY2025; up 6 since FY2020.
48	Space Florida Through Center for the Advancement of Science In Space, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$15,000,000	0.2%	Rank history: #35 in FY2022, #32 in FY2023, #36 in FY2024 and not on the FY2025 list; up 66 since FY2020.
49	University of Washington Top agencies NASA (National Aeronautics and Space Administration)	$14,856,170	0.1%	Rank history: #56 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
50	University of Oklahoma Top agencies NASA (National Aeronautics and Space Administration)	$13,416,390	0.1%	Rank history: #43 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; down 24 since FY2020.
51	General Dynamics Corporation 3 awardees, including General Dynamics Mission Systems, Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) USAF (Department of the Air Force)	$13,334,520	0.1%	Rank history: not on the FY2022 list, #25 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2020.
52	Science & Technology Corporation Top agencies NASA (National Aeronautics and Space Administration)	$13,324,438	0.1%	Rank history: #53 in FY2022, #47 in FY2023, #37 in FY2024 and #57 in FY2025; up 5 since FY2020.
53	Aerojet Rocketdyne Holdings, Inc. 2 awardees, including Aerojet Rocketdyne, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$12,853,911	0.1%	Rank history: #27 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; down 19 since FY2020.
54	University of Texas System 11 awardees, including University of Texas At Austin, University of Texas At Arlington and The University of Texas At San Antonio Top agencies NASA (National Aeronautics and Space Administration)	$12,484,568	0.1%	Rank history: #68 in FY2022, #52 in FY2023, #92 in FY2024 and not on the FY2025 list; up 13 since FY2020.
55	General Electric Company 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$12,249,375	0.1%	Rank history: #81 in FY2022, #63 in FY2023, #80 in FY2024 and not on the FY2025 list; up 38 since FY2020.
56	Zin Technologies, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$11,083,150	0.1%	Rank history: #41 in FY2022, #51 in FY2023, #56 in FY2024 and #67 in FY2025; up 12 since FY2020.
57	Sierra Nevada Company, LLC 2 awardees Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$11,034,544	0.1%	Rank history: #44 in FY2022, #54 in FY2023, #48 in FY2024 and #43 in FY2025; up 19 since FY2020.
58	University of Hawaii Systems 2 awardees, including University of Hawaii Top agencies NASA (National Aeronautics and Space Administration)	$10,926,777	0.1%	Rank history: #92 in FY2022, #97 in FY2023 and not on the FY2024–FY2025 lists; up 42 since FY2020.
59	University Corporation for Atmospheric Research Top agencies NASA (National Aeronautics and Space Administration)	$10,846,800	0.1%	Rank history: #70 in FY2022, #57 in FY2023, #64 in FY2024 and #83 in FY2025; down 4 since FY2020.
60	Nokia of America Corporation Top agencies NASA (National Aeronautics and Space Administration)	$10,781,465	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Everwatch Solutions Inc. Top agencies Navy (Department of the Navy)	$10,680,096	0.1%	Rank history: #69 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; up 60 since FY2020.
62	The Trustees of Princeton University Top agencies NASA (National Aeronautics and Space Administration)	$10,235,163	0.1%	Rank history: #49 in FY2022, #50 in FY2023, #45 in FY2024 and #68 in FY2025; up 4 since FY2020.
63	Aegis Aerospace Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$10,009,403	0.1%	Rank history: #48 in FY2022, #38 in FY2023, #32 in FY2024 and #36 in FY2025; up 11 since FY2020.
64	Seti Institute Top agencies NASA (National Aeronautics and Space Administration)	$9,998,118	0.1%	Rank history: #78 in FY2022, #90 in FY2023, #98 in FY2024 and #77 in FY2025; down 2 since FY2020.
65	The Trustees of Columbia University In the City of New York 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$9,880,054	0.1%	Rank history: #62 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
66	Analytical Mechanics Associates, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$9,749,400	0.1%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
67	Georgia TECH Research Corp 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$9,737,456	0.1%	Rank history: not on the FY2022–FY2023 lists, #95 in FY2024 and not on the FY2025 list; up 3 since FY2020.
68	The Leland Stanford Junior University Top agencies NASA (National Aeronautics and Space Administration)	$9,334,272	0.1%	Rank history: #47 in FY2022, #37 in FY2023, #53 in FY2024 and #44 in FY2025; down 17 since FY2020.
69	Planetary Science Institute Top agencies NASA (National Aeronautics and Space Administration)	$9,160,035	0.1%	Rank history: #87 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; up 32 since FY2020.
70	Massachusetts Institute of Technology Top agencies NASA (National Aeronautics and Space Administration)	$9,125,936	0.1%	Rank history: #57 in FY2022, #67 in FY2023, #84 in FY2024 and #86 in FY2025; down 20 since FY2020.
71	The University of Iowa Top agencies NASA (National Aeronautics and Space Administration)	$9,069,959	0.1%	Rank history: #11 in FY2022, #43 in FY2023, #54 in FY2024 and #32 in FY2025; down 35 since FY2020.
72	Ensign-Bickford Industries Inc. 3 awardees, including Honeybee Robotics, Ltd. Top agencies NASA (National Aeronautics and Space Administration)	$8,285,071	0.1%	Rank history: #66 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
73	University System of New Hampshire Top agencies NASA (National Aeronautics and Space Administration)	$8,163,370	0.1%	Rank history: #61 in FY2022, #64 in FY2023, #55 in FY2024 and not on the FY2025 list; up 71 since FY2020.
74	Regents of the University of Michigan Top agencies NASA (National Aeronautics and Space Administration)	$7,908,675	0.1%	Rank history: #64 in FY2022, #62 in FY2023, #63 in FY2024 and #59 in FY2025; down 30 since FY2020.
75	Nanoracks LLC Top agencies NASA (National Aeronautics and Space Administration)	$7,856,707	0.1%	Rank history: #77 in FY2022, #65 in FY2023, #47 in FY2024 and #58 in FY2025; up 51 since FY2020.
76	The Innovation Foundation At Oklahoma State University, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$7,774,493	0.1%	Rank history: #85 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
77	Braxton Science & Technology Group LLC 2 awardees, including Space Ground System Solutions, Inc. and Parsons Government Services Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$7,709,183	0.1%	Rank history: not on the FY2022–FY2025 lists; down 54 since FY2020.
78	The Pennsylvania State University Top agencies NASA (National Aeronautics and Space Administration)	$7,577,541	0.1%	Rank history: #72 in FY2022, #96 in FY2023, #91 in FY2024 and #82 in FY2025; down 6 since FY2020.
79	University of Maryland, College Park Top agencies NASA (National Aeronautics and Space Administration)	$7,526,470	0.1%	Rank history: #59 in FY2022, #58 in FY2023, #23 in FY2024 and #15 in FY2025; down 42 since FY2020.
80	University of Wisconsin System 2 awardees Top agencies NASA (National Aeronautics and Space Administration) DOI (Department of the Interior)	$7,440,209	0.1%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; up 51 since FY2020.
81	University of Illinois 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$7,414,640	0.1%	Rank history: #83 in FY2022, #78 in FY2023 and not on the FY2024–FY2025 lists; up 30 since FY2020.
82	Harris Miller Miller & Hanson Inc. Top agencies NASA (National Aeronautics and Space Administration)	$7,220,000	0.1%	Rank history: not on the FY2022–FY2023 lists, #97 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
83	The Washington University Top agencies NASA (National Aeronautics and Space Administration)	$7,209,394	0.1%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
84	Parsons Government Services Inc. Top agencies USAF (Department of the Air Force)	$6,648,384	0.1%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
85	Leonardo S.p.A. 2 awardees, including DRS Network & Imaging Systems LLC and DRS Training & Control Systems, LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$6,320,189	0.1%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; up 97 since FY2020.
86	Purdue University Top agencies NASA (National Aeronautics and Space Administration)	$6,099,173	0.1%	Rank history: #75 in FY2022, #71 in FY2023, #96 in FY2024 and not on the FY2025 list; down 3 since FY2020.
87	The University of Chicago Top agencies NASA (National Aeronautics and Space Administration)	$5,937,514	0.1%	Rank history: not on the FY2022–FY2025 lists; up 36 since FY2020.
88	The Texas A&M University System 7 awardees, including Texas A&M Engineering Experiment Station, Texas A & M University and Texas A & M University System Health Science Center Top agencies NASA (National Aeronautics and Space Administration)	$5,866,323	0.1%	Rank history: not on the FY2022 list, #75 in FY2023 and not on the FY2024–FY2025 lists; up 66 since FY2020.
89	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force)	$5,656,201	0.1%	Rank history: #88 in FY2022, not on the FY2023 list, #51 in FY2024 and #39 in FY2025; up 13 since FY2020.
90	University of Montana System 2 awardees, including Montana State University and University of Montana Top agencies NASA (National Aeronautics and Space Administration)	$5,565,157	0.1%	Rank history: not on the FY2022–FY2025 lists; up 27 since FY2020.
91	Eta Space LLC Top agencies NASA (National Aeronautics and Space Administration)	$5,455,588	0.1%	Rank history: #96 in FY2022, #44 in FY2023, not on the FY2024 list and #93 in FY2025; new, not ranked in FY2020.
92	Woods Hole Oceanographic Institution Top agencies NASA (National Aeronautics and Space Administration)	$5,385,813	0.1%	Rank history: #91 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; up 20 since FY2020.
93	California Association for Research In Astronomy Top agencies NASA (National Aeronautics and Space Administration)	$4,964,751	<0.1%	Rank history: #89 in FY2022, #74 in FY2023, #72 in FY2024 and #56 in FY2025; up 47 since FY2020.
94	Cosm Advanced Manufacturing Systems LLC Top agencies NASA (National Aeronautics and Space Administration)	$4,962,338	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	The Research Foundation for the State University of New York 5 awardees Top agencies NASA (National Aeronautics and Space Administration)	$4,464,465	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 113 since FY2020.
96	Trustees of Boston University 2 awardees Top agencies NASA (National Aeronautics and Space Administration) DOI (Department of the Interior)	$4,334,649	<0.1%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; down 19 since FY2020.
97	Space Logistics LLC Top agencies USAF (Department of the Air Force)	$4,311,678	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Vector Atomic Inc. Top agencies OSD (Office of the Secretary of Defense)	$4,111,481	<0.1%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
99	Advanced Space LLC Top agencies NASA (National Aeronautics and Space Administration)	$4,099,520	<0.1%	Rank history: #84 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
100	Rutgers, the State University 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$3,946,229	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 52 since FY2020.

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100 of 638 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC AR

Code	Net obligations	Largest contractor
AR11 Space R&D Services; Space Flight, Research and Supporting Activities; Basic Research	$1,673,406,791	The Boeing Company
AR21 R&D – Space: Science/Applications (Basic Research)	$1,257,579,036	Northrop Grumman Corporation
AR12 Space R&D Services; Space Flight, Research and Supporting Activities; Applied Research	$542,486,982	California Institute of Technology
AR13 Space R&D Services; Space Flight, Research and Supporting Activities; Experimental Development	$136,667,175	Space Exploration Technologies Corp.

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 $9.97 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.

Quick answers

Who were the top 10 PSC AR contractors in FY2021?

1. California Institute of Technology ($2.28B), 2. The Boeing Company ($1.5B), 3. Northrop Grumman Corporation ($949M), 4. Lockheed Martin Corporation ($723M), 5. Space Exploration Technologies Corp. ($413M), 6. Jacobs Engineering Group Inc. ($322M), 7. United Launch Alliance, L.L.C. ($319M), 8. The Johns Hopkins University ($274M), 9. Blue Origin Federation, LLC ($252M), 10. Leidos Holdings, Inc. ($140M).

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