Top 100 Contractors in PSC AR: Space R&D Services, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC AR: Space R&D Services, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 78% of PSC AR contract dollars from July 2025 through June 2026

Contract obligations: $8,940,736,930 Net of deobligations, by contracts coded PSC AR or a code under it
Contractors: 271 Parent companies with an obligation
Largest contractor: California Institute of Technology $2.29 billion, 25.1% 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) DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force)	$2,291,096,540	25.1%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	The Boeing Company 10 awardees, including Millennium Space Systems, Inc., Boeing Aerospace Operations, Inc. and Aurora Flight Sciences Corporation Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$1,285,122,675	14.1%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
3	Northrop Grumman Corporation 8 awardees, including Northrop Grumman Systems Corporation and Scaled Composites, LLC Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$1,031,465,068	11.3%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since Jul 2024–Jun 2025.
4	Blue Origin Washington, LLC Top agencies NASA (National Aeronautics and Space Administration)	$631,725,458	6.9%	Rank history: #22 in FY2021, #58 in FY2022, #7 in FY2023, #6 in FY2024 and #4 in FY2025; up 2 since Jul 2024–Jun 2025.
5	Lockheed Martin Corporation 5 awardees Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce) USAF (Department of the Air Force)	$491,524,811	5.4%	Rank history: #4 in FY2021, #5 in FY2022, #5 in FY2023, #5 in FY2024 and #5 in FY2025; down 1 since Jul 2024–Jun 2025.
6	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)	$446,030,606	4.9%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; up 58 since Jul 2024–Jun 2025.
7	Blue Origin Manufacturing, LLC Top agencies NASA (National Aeronautics and Space Administration)	$301,561,071	3.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
8	Bechtel Corp Through Bechtel National, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$266,900,000	2.9%	Rank history: #18 in FY2021, #25 in FY2022, #8 in FY2023, #8 in FY2024 and #8 in FY2025; up 1 since Jul 2024–Jun 2025.
9	Association of Universities for Research In Astronomy, Inc. 3 awardees Top agencies NASA (National Aeronautics and Space Administration)	$224,995,874	2.5%	Rank history: #11 in FY2021, #8 in FY2022, #9 in FY2023, #9 in FY2024 and #7 in FY2025; down 1 since Jul 2024–Jun 2025.
10	Space Exploration Technologies Corp. Top agencies NASA (National Aeronautics and Space Administration) OSD (Office of the Secretary of Defense)	$174,449,930	1.9%	Rank history: #5 in FY2021, #4 in FY2022, #4 in FY2023, #4 in FY2024 and #9 in FY2025; down 5 since Jul 2024–Jun 2025.
11	York Space Systems LLC Top agencies USAF (Department of the Air Force)	$161,638,173	1.8%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #10 in FY2025; down 1 since Jul 2024–Jun 2025.
12	Firefly Aerospace Inc. Top agencies NASA (National Aeronautics and Space Administration)	$139,598,410	1.5%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #13 in FY2025; up 4 since Jul 2024–Jun 2025.
13	The Aerospace Corporation Top agencies NASA (National Aeronautics and Space Administration) DOE (Department of Energy)	$104,228,191	1.1%	Rank history: #30 in FY2021, #21 in FY2022, #16 in FY2023, #16 in FY2024 and #12 in FY2025; down 2 since Jul 2024–Jun 2025.
14	L3Harris Technologies, Inc. 4 awardees, including Aerojet Rocketdyne, Inc. Top agencies Commerce (Department of Commerce) NASA (National Aeronautics and Space Administration)	$101,337,888	1.1%	Rank history: #37 in FY2021, #28 in FY2022, #10 in FY2023, #12 in FY2024 and #11 in FY2025; up 37 since Jul 2024–Jun 2025.
15	Smithsonian Institution Top agencies NASA (National Aeronautics and Space Administration)	$80,477,254	0.9%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #17 in FY2025; up 3 since Jul 2024–Jun 2025.
16	Modern Technology Solutions, Inc. Top agencies USAF (Department of the Air Force)	$76,324,132	0.8%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and #21 in FY2025; up 7 since Jul 2024–Jun 2025.
17	Adnet Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$75,275,098	0.8%	Rank history: #21 in FY2021, #17 in FY2022, #18 in FY2023, #18 in FY2024 and #14 in FY2025; unchanged since Jul 2024–Jun 2025.
18	Southwest Research Institute Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce)	$75,263,231	0.8%	Rank history: #25 in FY2021, #22 in FY2022, #22 in FY2023, #22 in FY2024 and #18 in FY2025; up 4 since Jul 2024–Jun 2025.
19	Astrobotic Technology Inc Top agencies NASA (National Aeronautics and Space Administration)	$63,603,511	0.7%	Rank history: #13 in FY2021, #10 in FY2022, #20 in FY2023, #86 in FY2024 and #91 in FY2025; up 120 since Jul 2024–Jun 2025.
20	Intuitive Machines, LLC Top agencies NASA (National Aeronautics and Space Administration)	$61,981,461	0.7%	Rank history: #15 in FY2021, #12 in FY2022, #24 in FY2023, #14 in FY2024 and not on the FY2025 list; down 5 since Jul 2024–Jun 2025.
21	Blue Origin, LLC Top agencies NASA (National Aeronautics and Space Administration)	$58,247,006	0.6%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; up 96 since Jul 2024–Jun 2025.
22	University of Maryland, College Park Top agencies NASA (National Aeronautics and Space Administration)	$49,665,328	0.5%	Rank history: #79 in FY2021, #59 in FY2022, #58 in FY2023, #23 in FY2024 and #15 in FY2025; down 1 since Jul 2024–Jun 2025.
23	BAE Systems Space & Mission Systems Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$48,789,520	0.5%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #16 in FY2025; down 11 since Jul 2024–Jun 2025.
24	Peraton Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$47,900,899	0.5%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #20 in FY2025; down 4 since Jul 2024–Jun 2025.
25	Tecolote Research, Inc. Top agencies USAF (Department of the Air Force)	$46,388,333	0.5%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; up 3 since Jul 2024–Jun 2025.
26	The Regents of the University of California Top agencies NASA (National Aeronautics and Space Administration)	$36,644,075	0.4%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and #19 in FY2025; up 54 since Jul 2024–Jun 2025.
27	Parsons Corporation 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)	$28,838,914	0.3%	Rank history: #14 in FY2021, #14 in FY2022, #11 in FY2023, #27 in FY2024 and #24 in FY2025; unchanged since Jul 2024–Jun 2025.
28	The Trustees of Princeton University Top agencies NASA (National Aeronautics and Space Administration)	$28,791,020	0.3%	Rank history: #62 in FY2021, #49 in FY2022, #50 in FY2023, #45 in FY2024 and #68 in FY2025; up 25 since Jul 2024–Jun 2025.
29	University of Arizona Top agencies NASA (National Aeronautics and Space Administration)	$28,739,639	0.3%	Rank history: not on the FY2021 list, #76 in FY2022, #73 in FY2023, #75 in FY2024 and #23 in FY2025; up 18 since Jul 2024–Jun 2025.
30	BAE Systems 2 awardees, including BAE Systems Space & Mission Systems Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) Commerce (Department of Commerce)	$24,876,363	0.3%	Rank history: not on the FY2021–FY2025 lists; up 220 since Jul 2024–Jun 2025.
31	The Regents of the University of Colorado Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce)	$22,809,529	0.3%	Rank history: #19 in FY2021, #20 in FY2022, #28 in FY2023, #28 in FY2024 and #27 in FY2025; down 1 since Jul 2024–Jun 2025.
32	Analytical Mechanics Associates Inc. Top agencies NASA (National Aeronautics and Space Administration)	$16,682,607	0.2%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023, #52 in FY2024 and #29 in FY2025; up 7 since Jul 2024–Jun 2025.
33	The University of Iowa Top agencies NASA (National Aeronautics and Space Administration)	$15,194,653	0.2%	Rank history: #71 in FY2021, #11 in FY2022, #43 in FY2023, #54 in FY2024 and #32 in FY2025; up 5 since Jul 2024–Jun 2025.
34	Aegis Aerospace Inc. 2 awardees, including Alpha Space Test and Research Alliance, LLC Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$14,819,085	0.2%	Rank history: #63 in FY2021, #48 in FY2022, #38 in FY2023, #32 in FY2024 and #36 in FY2025; up 6 since Jul 2024–Jun 2025.
35	Guidehouse Inc. Through Peraton Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$14,520,880	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
36	Catholic University of America (The) Top agencies NASA (National Aeronautics and Space Administration)	$13,721,181	0.2%	Rank history: #44 in FY2021, #46 in FY2022, #40 in FY2023, #30 in FY2024 and #31 in FY2025; down 1 since Jul 2024–Jun 2025.
37	University of California, LOS Angeles Top agencies NASA (National Aeronautics and Space Administration)	$13,335,661	0.1%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #69 in FY2025; up 25 since Jul 2024–Jun 2025.
38	Sierra Lobo Inc. Top agencies NASA (National Aeronautics and Space Administration)	$13,325,546	0.1%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; up 52 since Jul 2024–Jun 2025.
39	Booz Allen Hamilton Holding Corporation Through Everwatch Solutions Inc. Top agencies Navy (Department of the Navy)	$12,843,140	0.1%	Rank history: #89 in FY2021, #88 in FY2022, not on the FY2023 list, #51 in FY2024 and #39 in FY2025; up 5 since Jul 2024–Jun 2025.
40	Western Digital Technologies Inc. Top agencies USAF (Department of the Air Force)	$11,996,210	0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; up 37 since Jul 2024–Jun 2025.
41	Lanteris Space LLC Top agencies NASA (National Aeronautics and Space Administration)	$11,261,469	0.1%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 38 since Jul 2024–Jun 2025.
42	The Leland Stanford Junior University 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$10,981,329	0.1%	Rank history: #68 in FY2021, #47 in FY2022, #37 in FY2023, #53 in FY2024 and #44 in FY2025; up 8 since Jul 2024–Jun 2025.
43	Assurance Technology Corp Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$10,939,332	0.1%	Rank history: #47 in FY2021, #55 in FY2022, #82 in FY2023, #67 in FY2024 and #46 in FY2025; up 18 since Jul 2024–Jun 2025.
44	Sierra Nevada Company, LLC Through Sierra Space Corp Top agencies NASA (National Aeronautics and Space Administration)	$10,652,636	0.1%	Rank history: #57 in FY2021, #44 in FY2022, #54 in FY2023, #48 in FY2024 and #43 in FY2025; down 2 since Jul 2024–Jun 2025.
45	STI Legacy, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$10,628,382	0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; up 49 since Jul 2024–Jun 2025.
46	University System of New Hampshire Top agencies NASA (National Aeronautics and Space Administration)	$9,590,414	0.1%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; up 9 since Jul 2024–Jun 2025.
47	Arizona Board of Regents 3 awardees, including Arizona State University, University of Arizona and Northern Arizona University Top agencies NASA (National Aeronautics and Space Administration)	$9,232,180	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
48	RTX Corporation 8 awardees, including Hamilton Sundstrand Space Systems International, Inc., Raytheon Company and Rohr, Inc. Top agencies NASA (National Aeronautics and Space Administration) WHS (DOD Washington Headquarters Service) USAF (Department of the Air Force)	$9,225,683	0.1%	Rank history: #40 in FY2021, #33 in FY2022, #33 in FY2023, #39 in FY2024 and #33 in FY2025; down 11 since Jul 2024–Jun 2025.
49	Teledyne Technologies Incorporated 2 awardees, including Teledyne Brown Engineering, Inc. and Teledyne Energy Systems, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$8,293,838	0.1%	Rank history: #28 in FY2021, #42 in FY2022, #36 in FY2023, #43 in FY2024 and #54 in FY2025; up 7 since Jul 2024–Jun 2025.
50	Baylor College of Medicine Top agencies NASA (National Aeronautics and Space Administration)	$7,787,231	0.1%	Rank history: #41 in FY2021, #51 in FY2022, #39 in FY2023, #38 in FY2024 and #35 in FY2025; down 2 since Jul 2024–Jun 2025.
51	Ursa Space Systems Inc. Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$7,580,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; up 16 since Jul 2024–Jun 2025.
52	California Association for Research In Astronomy Top agencies NASA (National Aeronautics and Space Administration)	$7,478,653	0.1%	Rank history: #93 in FY2021, #89 in FY2022, #74 in FY2023, #72 in FY2024 and #56 in FY2025; up 50 since Jul 2024–Jun 2025.
53	Slingshot Aerospace Inc. Top agencies USAF (Department of the Air Force)	$7,407,605	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
54	Gravitics, Inc. Top agencies USAF (Department of the Air Force)	$6,600,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
55	Forward Edge Ai Inc. Top agencies USAF (Department of the Air Force)	$6,225,447	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023, #35 in FY2024 and #55 in FY2025; down 6 since Jul 2024–Jun 2025.
56	Utah State University Space Dynamics Laboratory Top agencies NASA (National Aeronautics and Space Administration)	$6,217,500	0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; up 44 since Jul 2024–Jun 2025.
57	Regents of the University of Michigan Top agencies NASA (National Aeronautics and Space Administration)	$5,658,603	0.1%	Rank history: #74 in FY2021, #64 in FY2022, #62 in FY2023, #63 in FY2024 and #59 in FY2025; up 13 since Jul 2024–Jun 2025.
58	KBR Wyle Services LLC Top agencies NASA (National Aeronautics and Space Administration)	$5,599,981	0.1%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #30 in FY2025; down 27 since Jul 2024–Jun 2025.
59	Map Large, Inc. Top agencies OSD (Office of the Secretary of Defense)	$5,545,471	0.1%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; up 4 since Jul 2024–Jun 2025.
60	Technology Service Corp Top agencies Navy (Department of the Navy)	$5,336,376	0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #46 in FY2023, #44 in FY2024 and #52 in FY2025; down 6 since Jul 2024–Jun 2025.
61	Eascra Biotech, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$5,250,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
62	Redwire Space Technologies, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$5,082,152	0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #50 in FY2025; up 7 since Jul 2024–Jun 2025.
63	Thinkorbital Inc. Top agencies USAF (Department of the Air Force)	$4,650,187	0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; new, not ranked in Jul 2024–Jun 2025.
64	Nanoracks, LLC Top agencies NASA (National Aeronautics and Space Administration)	$4,643,184	0.1%	Rank history: #75 in FY2021, #77 in FY2022, #65 in FY2023, #47 in FY2024 and #58 in FY2025; up 196 since Jul 2024–Jun 2025.
65	Quantech Services Inc. Top agencies USAF (Department of the Air Force)	$4,508,090	<0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; up 27 since Jul 2024–Jun 2025.
66	University of Florida Top agencies NASA (National Aeronautics and Space Administration)	$4,382,061	<0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; up 8 since Jul 2024–Jun 2025.
67	Wichita State University Top agencies NASA (National Aeronautics and Space Administration)	$4,263,161	<0.1%	Rank history: not on the FY2021 list, #74 in FY2022, not on the FY2023 list, #82 in FY2024 and #72 in FY2025; up 42 since Jul 2024–Jun 2025.
68	Carnegie-Mellon University Top agencies NASA (National Aeronautics and Space Administration)	$4,094,543	<0.1%	Rank history: not on the FY2021–FY2023 lists, #77 in FY2024 and #62 in FY2025; up 20 since Jul 2024–Jun 2025.
69	Spacebilt Inc. Top agencies OSD (Office of the Secretary of Defense)	$3,999,509	<0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; up 106 since Jul 2024–Jun 2025.
70	San Jose State University Research Foundation Top agencies NASA (National Aeronautics and Space Administration)	$3,649,083	<0.1%	Rank history: #45 in FY2021, #54 in FY2022, #93 in FY2023, not on the FY2024 list and #61 in FY2025; up 2 since Jul 2024–Jun 2025.
71	Spirit Aerosystems Holdings, Inc. Through Spirit Aerosystems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,605,157	<0.1%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023, #69 in FY2024 and not on the FY2025 list; down 6 since Jul 2024–Jun 2025.
72	University Corporation for Atmospheric Research Top agencies NASA (National Aeronautics and Space Administration)	$3,531,594	<0.1%	Rank history: #59 in FY2021, #70 in FY2022, #57 in FY2023, #64 in FY2024 and #83 in FY2025; up 3 since Jul 2024–Jun 2025.
73	Anasphere, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,458,993	<0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Jul 2024–Jun 2025.
74	Scioteq LLC Through Airborne Systems North America of CA Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,367,857	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 61 since Jul 2024–Jun 2025.
75	Trustees of Dartmouth College Top agencies NASA (National Aeronautics and Space Administration)	$3,308,829	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 235 since Jul 2024–Jun 2025.
76	Malin Space Science Systems, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,263,324	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 57 since Jul 2024–Jun 2025.
77	Edgecortix Corp Top agencies OSD (Office of the Secretary of Defense)	$3,079,819	<0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 43 since Jul 2024–Jun 2025.
78	Optisense Inc. Top agencies OSD (Office of the Secretary of Defense)	$3,016,612	<0.1%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; up 26 since Jul 2024–Jun 2025.
79	Center for the Advancement of Science In Space, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,000,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; down 33 since Jul 2024–Jun 2025.
80	Arizona State University Top agencies NASA (National Aeronautics and Space Administration)	$2,852,970	<0.1%	Rank history: #34 in FY2021, #38 in FY2022, #34 in FY2023, #34 in FY2024 and #34 in FY2025; down 44 since Jul 2024–Jun 2025.
81	University of Alabama At Birmingham Top agencies NASA (National Aeronautics and Space Administration)	$2,851,208	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
82	Bluehalo Labs, LLC Top agencies USAF (Department of the Air Force)	$2,653,384	<0.1%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; up 24 since Jul 2024–Jun 2025.
83	The Pennsylvania State University Top agencies NASA (National Aeronautics and Space Administration)	$2,644,984	<0.1%	Rank history: #78 in FY2021, #72 in FY2022, #96 in FY2023, #91 in FY2024 and #82 in FY2025; up 13 since Jul 2024–Jun 2025.
84	Computational Physics, Inc. Top agencies Navy (Department of the Navy)	$2,552,555	<0.1%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and not on the FY2025 list; up 13 since Jul 2024–Jun 2025.
85	Amentum Holdings, Inc. 2 awardees, including Amentum Services, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$2,417,287	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 203 since Jul 2024–Jun 2025.
86	Eta Space LLC Top agencies NASA (National Aeronautics and Space Administration)	$2,302,366	<0.1%	Rank history: #91 in FY2021, #96 in FY2022, #44 in FY2023, not on the FY2024 list and #93 in FY2025; up 37 since Jul 2024–Jun 2025.
87	Jackson Bond Enterprises, LLC Top agencies NASA (National Aeronautics and Space Administration)	$2,265,479	<0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; up 110 since Jul 2024–Jun 2025.
88	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$2,204,054	<0.1%	Rank history: #10 in FY2021, #29 in FY2022, #83 in FY2023, not on the FY2024 list and #75 in FY2025; up 96 since Jul 2024–Jun 2025.
89	Creare LLC Top agencies NASA (National Aeronautics and Space Administration)	$2,173,495	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 42 since Jul 2024–Jun 2025.
90	University of Maryland Baltimore County Top agencies NASA (National Aeronautics and Space Administration)	$2,123,299	<0.1%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #26 in FY2025; down 61 since Jul 2024–Jun 2025.
91	Omitron, Inc. Top agencies USAF (Department of the Air Force)	$2,075,766	<0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023, not on the FY2024 list and #92 in FY2025; up 12 since Jul 2024–Jun 2025.
92	Science & Technology Corporation Top agencies NASA (National Aeronautics and Space Administration)	$2,067,363	<0.1%	Rank history: #52 in FY2021, #53 in FY2022, #47 in FY2023, #37 in FY2024 and #57 in FY2025; down 40 since Jul 2024–Jun 2025.
93	Trustees of Boston College Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service)	$1,891,448	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 187 since Jul 2024–Jun 2025.
94	The Trustees of Columbia University In the City of New York Top agencies NASA (National Aeronautics and Space Administration)	$1,853,830	<0.1%	Rank history: #65 in FY2021, #62 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; up 18 since Jul 2024–Jun 2025.
95	Auxilium Biotechnologies Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,813,184	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 42 since Jul 2024–Jun 2025.
96	Busek Co., Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,780,866	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
97	Zin Technologies, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,757,509	<0.1%	Rank history: #56 in FY2021, #41 in FY2022, #51 in FY2023, #56 in FY2024 and #67 in FY2025; down 38 since Jul 2024–Jun 2025.
98	University of Notre Dame DU Lac Top agencies NASA (National Aeronautics and Space Administration)	$1,625,324	<0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; up 26 since Jul 2024–Jun 2025.
99	Global Weather & Climate Solutions, Inc. Top agencies USAF (Department of the Air Force)	$1,513,913	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
100	Tennessee Technological University Top agencies NASA (National Aeronautics and Space Administration)	$1,500,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 18 since Jul 2024–Jun 2025.

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100 of 271 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC AR

Code	Net obligations	Largest contractor
AR12 Space R&D Services; Space Flight, Research and Supporting Activities; Applied Research	$2,017,903,965	California Institute of Technology
AR11 Space R&D Services; Space Flight, Research and Supporting Activities; Basic Research	$1,884,886,575	The Boeing Company
AR21 R&D – Space: Science/Applications (Basic Research)	$497,338,431	Northrop Grumman Corporation
AR13 Space R&D Services; Space Flight, Research and Supporting Activities; Experimental Development	$480,229,739	York Space Systems LLC

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 $9.12 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
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 Jul 2025–Jun 2026?

1. California Institute of Technology ($2.29B), 2. The Boeing Company ($1.29B), 3. Northrop Grumman Corporation ($1.03B), 4. Blue Origin Washington, LLC ($632M), 5. Lockheed Martin Corporation ($492M), 6. Johns Hopkins University ($446M), 7. Blue Origin Manufacturing, LLC ($302M), 8. Bechtel Corp ($267M), 9. Association of Universities for Research In Astronomy, Inc. ($225M), 10. Space Exploration Technologies Corp. ($174M).

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