Top 100 Contractors in PSC AR: Space R&D Services, FY2023

Name: Top 100 Contractors in PSC AR: Space R&D Services, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 80% of FY2023 PSC AR contract dollars

Contract obligations: $10,696,979,511 Net of deobligations, by contracts coded PSC AR or a code under it
Contractors: 503 Parent companies with an obligation
Largest contractor: California Institute of Technology $2.77 billion, 25.6% 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) HHS (Department of Health and Human Services) DARPA (Defense Advanced Research Projects Agency)	$2,774,945,617	25.6%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	The Boeing Company 13 awardees, including Millennium Space Systems, Inc. and Boeing Aerospace Operations, Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$1,485,361,622	13.7%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2024 and #2 in FY2025; unchanged since FY2022.
3	Northrop Grumman Corporation 9 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce)	$1,197,821,486	11.1%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2024 and #3 in FY2025; unchanged since FY2022.
4	Space Exploration Technologies Corp. Top agencies NASA (National Aeronautics and Space Administration)	$978,161,481	9.0%	Rank history: #5 in FY2021, #4 in FY2022, #4 in FY2024 and #9 in FY2025; unchanged since FY2022.
5	Lockheed Martin Corporation 7 awardees Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce) Navy (Department of the Navy)	$608,667,266	5.6%	Rank history: #4 in FY2021, #5 in FY2022, #5 in FY2024 and #5 in FY2025; unchanged since FY2022.
6	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) WHS (DOD Washington Headquarters Service)	$525,377,012	4.9%	Rank history: #8 in FY2021, #6 in FY2022, #11 in FY2024 and not on the FY2025 list; unchanged since FY2022.
7	Blue Origin Washington, LLC Top agencies NASA (National Aeronautics and Space Administration)	$425,009,984	3.9%	Rank history: #22 in FY2021, #58 in FY2022, #6 in FY2024 and #4 in FY2025; up 51 since FY2022.
8	Bechtel Corp Through Bechtel National, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$308,679,002	2.9%	Rank history: #18 in FY2021, #25 in FY2022, #8 in FY2024 and #8 in FY2025; up 17 since FY2022.
9	Association of Universities for Research In Astronomy, Inc. 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$202,354,733	1.9%	Rank history: #11 in FY2021, #8 in FY2022, #9 in FY2024 and #7 in FY2025; down 1 since FY2022.
10	L3Harris Technologies, Inc. 5 awardees Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$142,786,799	1.3%	Rank history: #37 in FY2021, #28 in FY2022, #12 in FY2024 and #11 in FY2025; up 18 since FY2022.
11	Parsons Corporation 3 awardees, including Parsons Government Services Inc. and Space Ground System Solutions, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$107,649,220	1.0%	Rank history: #14 in FY2021, #14 in FY2022, #27 in FY2024 and #24 in FY2025; up 3 since FY2022.
12	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)	$104,623,322	1.0%	Rank history: #7 in FY2021, #9 in FY2022, #15 in FY2024 and #40 in FY2025; down 3 since FY2022.
13	Ball Corp Through BAE Systems Space & Mission Systems Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$100,361,663	0.9%	Rank history: #12 in FY2021, #16 in FY2022, #13 in FY2024 and not on the FY2025 list; up 3 since FY2022.
14	Noosphere Venture Partners LP Through Firefly Aerospace Inc. Top agencies NASA (National Aeronautics and Space Administration)	$94,871,677	0.9%	Rank history: #24 in FY2021, #24 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
15	University System of Maryland 5 awardees, including University of Maryland, College Park, University of Maryland Baltimore County and University of Maryland Es Top agencies NASA (National Aeronautics and Space Administration)	$75,261,580	0.7%	Rank history: #20 in FY2021, #15 in FY2022, #41 in FY2024 and not on the FY2025 list; unchanged since FY2022.
16	The Aerospace Corporation Top agencies NASA (National Aeronautics and Space Administration) DOE (Department of Energy)	$70,805,978	0.7%	Rank history: #30 in FY2021, #21 in FY2022, #16 in FY2024 and #12 in FY2025; up 5 since FY2022.
17	Jacobs Engineering Group Inc. 2 awardees, including Amentum Technology, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$70,718,251	0.7%	Rank history: #6 in FY2021, #7 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
18	Adnet Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$70,037,372	0.6%	Rank history: #21 in FY2021, #17 in FY2022, #18 in FY2024 and #14 in FY2025; down 1 since FY2022.
19	Government of the United States 2 awardees, including Smithsonian Institution Top agencies NASA (National Aeronautics and Space Administration)	$68,818,786	0.6%	Rank history: #16 in FY2021, #13 in FY2022, #49 in FY2024 and not on the FY2025 list; down 6 since FY2022.
20	Astrobotic Technology Inc 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$67,963,533	0.6%	Rank history: #13 in FY2021, #10 in FY2022, #86 in FY2024 and #91 in FY2025; down 10 since FY2022.
21	HP Enterprise Services LLC Through Peraton Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$57,718,392	0.5%	Rank history: not on the FY2021 list, #31 in FY2022, #46 in FY2024 and not on the FY2025 list; up 10 since FY2022.
22	Southwest Research Institute Top agencies NASA (National Aeronautics and Space Administration)	$57,576,344	0.5%	Rank history: #25 in FY2021, #22 in FY2022, #22 in FY2024 and #18 in FY2025; unchanged since FY2022.
23	State of California Controllers Office 14 awardees, including The Regents of the University of California, University of California, LOS Angeles and University of California, Davis Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$49,588,736	0.5%	Rank history: #23 in FY2021, #18 in FY2022, #50 in FY2024 and not on the FY2025 list; down 5 since FY2022.
24	Intuitive Machines, LLC Top agencies NASA (National Aeronautics and Space Administration)	$49,015,620	0.5%	Rank history: #15 in FY2021, #12 in FY2022, #14 in FY2024 and not on the FY2025 list; down 12 since FY2022.
25	General Dynamics Corporation 2 awardees, including General Dynamics Mission Systems, Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$47,186,936	0.4%	Rank history: #51 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 186 since FY2022.
26	State of Arizona Through University of Arizona Top agencies NASA (National Aeronautics and Space Administration)	$34,863,725	0.3%	Rank history: #27 in FY2021, #32 in FY2022, #58 in FY2024 and not on the FY2025 list; up 6 since FY2022.
27	The University of Alabama System 2 awardees, including The University of Alabama In Huntsville Top agencies NASA (National Aeronautics and Space Administration)	$32,369,710	0.3%	Rank history: #36 in FY2021, #30 in FY2022, #29 in FY2024 and not on the FY2025 list; up 3 since FY2022.
28	The Regents of the University of Colorado 3 awardees Top agencies NASA (National Aeronautics and Space Administration)	$28,891,002	0.3%	Rank history: #19 in FY2021, #20 in FY2022, #28 in FY2024 and #27 in FY2025; down 8 since FY2022.
29	University of Oklahoma Top agencies NASA (National Aeronautics and Space Administration)	$24,275,787	0.2%	Rank history: #50 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; up 14 since FY2022.
30	Ensco Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$21,343,362	0.2%	Rank history: #17 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
31	Aerojet Rocketdyne Holdings, Inc. 2 awardees, including Aerojet Rocketdyne, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$18,566,931	0.2%	Rank history: #53 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
32	Space Florida Through Center for the Advancement of Science In Space, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$17,383,000	0.2%	Rank history: #48 in FY2021, #35 in FY2022, #36 in FY2024 and not on the FY2025 list; up 3 since FY2022.
33	RTX Corporation 9 awardees, including Blue Canyon Technologies LLC, Hamilton Sundstrand Corporation and Hamilton Sundstrand Space Systems International, Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$17,014,244	0.2%	Rank history: #40 in FY2021, #33 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
34	Arizona State University Top agencies NASA (National Aeronautics and Space Administration)	$16,993,957	0.2%	Rank history: #34 in FY2021, #38 in FY2022, #34 in FY2024 and #34 in FY2025; up 4 since FY2022.
35	Kbr, Inc. 3 awardees, including KBR Wyle Services, LLC Top agencies NASA (National Aeronautics and Space Administration)	$16,475,978	0.2%	Rank history: #31 in FY2021, #23 in FY2022, #33 in FY2024 and not on the FY2025 list; down 12 since FY2022.
36	Teledyne Technologies Incorporated 2 awardees, including Teledyne Brown Engineering, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$15,906,717	0.1%	Rank history: #28 in FY2021, #42 in FY2022, #43 in FY2024 and #54 in FY2025; up 6 since FY2022.
37	The Leland Stanford Junior University Top agencies NASA (National Aeronautics and Space Administration)	$15,890,922	0.1%	Rank history: #68 in FY2021, #47 in FY2022, #53 in FY2024 and #44 in FY2025; up 10 since FY2022.
38	Aegis Aerospace Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$15,716,772	0.1%	Rank history: #63 in FY2021, #48 in FY2022, #32 in FY2024 and #36 in FY2025; up 10 since FY2022.
39	Baylor College of Medicine Top agencies NASA (National Aeronautics and Space Administration)	$15,607,087	0.1%	Rank history: #41 in FY2021, #51 in FY2022, #38 in FY2024 and #35 in FY2025; up 12 since FY2022.
40	Catholic University of America (The) Top agencies NASA (National Aeronautics and Space Administration)	$15,205,893	0.1%	Rank history: #44 in FY2021, #46 in FY2022, #30 in FY2024 and #31 in FY2025; up 6 since FY2022.
41	Anduril Industries Inc. Top agencies OSD (Office of the Secretary of Defense)	$14,353,452	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	Alpha Space Test and Research Alliance, LLC Top agencies NASA (National Aeronautics and Space Administration)	$14,337,084	0.1%	Rank history: not on the FY2021 list, #79 in FY2022 and not on the FY2024–FY2025 lists; up 37 since FY2022.
43	The University of Iowa Top agencies NASA (National Aeronautics and Space Administration)	$13,959,912	0.1%	Rank history: #71 in FY2021, #11 in FY2022, #54 in FY2024 and #32 in FY2025; down 32 since FY2022.
44	Eta Space LLC Top agencies NASA (National Aeronautics and Space Administration)	$13,094,833	0.1%	Rank history: #91 in FY2021, #96 in FY2022, not on the FY2024 list and #93 in FY2025; up 52 since FY2022.
45	Analytical Mechanics Associates Inc. Top agencies NASA (National Aeronautics and Space Administration)	$12,579,834	0.1%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2024 and #29 in FY2025; up 99 since FY2022.
46	Technology Service Corp Top agencies Navy (Department of the Navy)	$12,545,400	0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #44 in FY2024 and #52 in FY2025; up 14 since FY2022.
47	Science & Technology Corporation Top agencies NASA (National Aeronautics and Space Administration)	$11,352,811	0.1%	Rank history: #52 in FY2021, #53 in FY2022, #37 in FY2024 and #57 in FY2025; up 6 since FY2022.
48	Board of Governers State University System of Florida 7 awardees, including University of Florida, The University of Central Florida Board of Trustees and Florida International University Top agencies NASA (National Aeronautics and Space Administration)	$10,819,145	0.1%	Rank history: #43 in FY2021, #52 in FY2022, #73 in FY2024 and not on the FY2025 list; up 4 since FY2022.
49	Bay Area Environmental Research Institute Top agencies NASA (National Aeronautics and Space Administration)	$10,779,625	0.1%	Rank history: #39 in FY2021, #36 in FY2022, #94 in FY2024 and #79 in FY2025; down 13 since FY2022.
50	The Trustees of Princeton University Top agencies NASA (National Aeronautics and Space Administration)	$9,585,853	0.1%	Rank history: #62 in FY2021, #49 in FY2022, #45 in FY2024 and #68 in FY2025; down 1 since FY2022.
51	Zin Technologies, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$9,422,623	0.1%	Rank history: #56 in FY2021, #41 in FY2022, #56 in FY2024 and #67 in FY2025; down 10 since FY2022.
52	University of Texas System 10 awardees, including University of Texas At Austin, University of Texas At Dallas and The University of Texas At San Antonio Top agencies NASA (National Aeronautics and Space Administration)	$9,227,032	0.1%	Rank history: #54 in FY2021, #68 in FY2022, #92 in FY2024 and not on the FY2025 list; up 16 since FY2022.
53	The Trustees of Columbia University In the City of New York 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$8,909,224	0.1%	Rank history: #65 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
54	Sierra Nevada Company, LLC 3 awardees, including Sierra Space Corp Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$8,851,428	0.1%	Rank history: #57 in FY2021, #44 in FY2022, #48 in FY2024 and #43 in FY2025; down 10 since FY2022.
55	National Institute of Aerospace Associates Top agencies NASA (National Aeronautics and Space Administration)	$8,296,047	0.1%	Rank history: #32 in FY2021, #40 in FY2022, not on the FY2024 list and #80 in FY2025; down 15 since FY2022.
56	Spirit Aerosystems Holdings, Inc. Through Spirit Aerosystems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$7,832,372	0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and not on the FY2025 list; up 223 since FY2022.
57	University Corporation for Atmospheric Research Top agencies NASA (National Aeronautics and Space Administration)	$7,607,060	0.1%	Rank history: #59 in FY2021, #70 in FY2022, #64 in FY2024 and #83 in FY2025; up 13 since FY2022.
58	University of Maryland, College Park Top agencies NASA (National Aeronautics and Space Administration)	$7,567,283	0.1%	Rank history: #79 in FY2021, #59 in FY2022, #23 in FY2024 and #15 in FY2025; up 1 since FY2022.
59	Universities Space Research Association Top agencies NASA (National Aeronautics and Space Administration)	$7,547,594	0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2024 and not on the FY2025 list; new.
60	Everwatch Solutions Inc. Top agencies Navy (Department of the Navy)	$7,381,208	0.1%	Rank history: #61 in FY2021, #69 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
61	Analysis Computing & Engineering Solutions Inc. Through Everwatch Solutions Inc. Top agencies Navy (Department of the Navy)	$7,377,160	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Regents of the University of Michigan Top agencies NASA (National Aeronautics and Space Administration)	$7,172,812	0.1%	Rank history: #74 in FY2021, #64 in FY2022, #63 in FY2024 and #59 in FY2025; up 2 since FY2022.
63	General Electric Company Top agencies NASA (National Aeronautics and Space Administration)	$7,160,060	0.1%	Rank history: #55 in FY2021, #81 in FY2022, #80 in FY2024 and not on the FY2025 list; up 18 since FY2022.
64	University System of New Hampshire Top agencies NASA (National Aeronautics and Space Administration)	$7,039,693	0.1%	Rank history: #73 in FY2021, #61 in FY2022, #55 in FY2024 and not on the FY2025 list; down 3 since FY2022.
65	Nanoracks LLC Top agencies NASA (National Aeronautics and Space Administration)	$6,848,632	0.1%	Rank history: #75 in FY2021, #77 in FY2022, #47 in FY2024 and #58 in FY2025; up 12 since FY2022.
66	University of Washington Top agencies NASA (National Aeronautics and Space Administration)	$6,730,231	0.1%	Rank history: #49 in FY2021, #56 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
67	Massachusetts Institute of Technology Top agencies NASA (National Aeronautics and Space Administration)	$6,510,471	0.1%	Rank history: #70 in FY2021, #57 in FY2022, #84 in FY2024 and #86 in FY2025; down 10 since FY2022.
68	Made in Space Inc. Through Redwire Space Solutions, LLC Top agencies NASA (National Aeronautics and Space Administration)	$6,460,794	0.1%	Rank history: not on the FY2021 list, #65 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
69	II-VI Incorporated Through Attalon, Inc. Top agencies USAF (Department of the Air Force)	$6,316,924	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 32 since FY2022.
70	Raft LLC Top agencies USAF (Department of the Air Force)	$5,930,885	0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and not on the FY2025 list; new.
71	Purdue University Top agencies NASA (National Aeronautics and Space Administration)	$5,859,596	0.1%	Rank history: #86 in FY2021, #75 in FY2022, #96 in FY2024 and not on the FY2025 list; up 4 since FY2022.
72	Transdigm Group Incorporated Through Airborne Systems North America of CA Inc. Top agencies NASA (National Aeronautics and Space Administration)	$5,390,190	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 324 since FY2022.
73	University of Arizona Top agencies NASA (National Aeronautics and Space Administration)	$5,023,519	<0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #75 in FY2024 and #23 in FY2025; up 3 since FY2022.
74	California Association for Research In Astronomy Top agencies NASA (National Aeronautics and Space Administration)	$4,996,231	<0.1%	Rank history: #93 in FY2021, #89 in FY2022, #72 in FY2024 and #56 in FY2025; up 15 since FY2022.
75	The Texas A&M University System 6 awardees, including Texas A&M Engineering Experiment Station, Texas A & M University and Texas A&M Agrilife Research Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services)	$4,559,224	<0.1%	Rank history: #88 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 39 since FY2022.
76	Kentucky Science & Technology Corp Through STI Legacy, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$4,468,757	<0.1%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2024 and not on the FY2025 list; up 63 since FY2022.
77	Woods Hole Oceanographic Institution Top agencies NASA (National Aeronautics and Space Administration)	$4,401,650	<0.1%	Rank history: #92 in FY2021, #91 in FY2022 and not on the FY2024–FY2025 lists; up 14 since FY2022.
78	University of Illinois 2 awardees Top agencies NASA (National Aeronautics and Space Administration)	$4,335,321	<0.1%	Rank history: #81 in FY2021, #83 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
79	Vector Atomic Inc Top agencies OSD (Office of the Secretary of Defense)	$4,000,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2024 and not on the FY2025 list; new.
80	Zeno Power Systems Inc. Top agencies USAF (Department of the Air Force)	$4,000,000	<0.1%	Rank history: not on the FY2021 list, #73 in FY2022, #85 in FY2024 and not on the FY2025 list; down 7 since FY2022.
81	Planetary Science Institute Top agencies NASA (National Aeronautics and Space Administration)	$3,969,280	<0.1%	Rank history: #69 in FY2021, #87 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
82	Assurance Technology Corp Top agencies Navy (Department of the Navy)	$3,961,597	<0.1%	Rank history: #47 in FY2021, #55 in FY2022, #67 in FY2024 and #46 in FY2025; down 27 since FY2022.
83	Leidos Holdings, Inc. 4 awardees, including Leidos Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,932,477	<0.1%	Rank history: #10 in FY2021, #29 in FY2022, not on the FY2024 list and #75 in FY2025; down 54 since FY2022.
84	University of North Carolina at Chapel Hill 7 awardees, including North Carolina Agricultural and Technical State University and North Carolina State University Top agencies NASA (National Aeronautics and Space Administration)	$3,878,391	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 26 since FY2022.
85	Oklahoma State University Top agencies NASA (National Aeronautics and Space Administration)	$3,853,852	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 23 since FY2022.
86	Sev1Tech, LLC Top agencies Navy (Department of the Navy)	$3,813,345	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Omitron, Inc. Top agencies USAF (Department of the Air Force)	$3,715,750	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #92 in FY2025; up 50 since FY2022.
88	Utah State University 2 awardees, including Utah State University Space Dynamics Laboratory Top agencies NASA (National Aeronautics and Space Administration)	$3,694,705	<0.1%	Rank history: #46 in FY2021, #67 in FY2022, #90 in FY2024 and not on the FY2025 list; down 21 since FY2022.
89	Space Systems/Loral LLC 2 awardees, including Lanteris Space LLC Top agencies NASA (National Aeronautics and Space Administration)	$3,653,681	<0.1%	Rank history: #33 in FY2021, #39 in FY2022 and not on the FY2024–FY2025 lists; down 50 since FY2022.
90	Seti Institute Top agencies NASA (National Aeronautics and Space Administration)	$3,523,055	<0.1%	Rank history: #64 in FY2021, #78 in FY2022, #98 in FY2024 and #77 in FY2025; down 12 since FY2022.
91	University of Toronto Through The Governing Council of the University of Toronto Top agencies NASA (National Aeronautics and Space Administration)	$3,510,643	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 208 since FY2022.
92	Forward Edge Ai Inc. Top agencies USAF (Department of the Air Force)	$3,500,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2024 and #55 in FY2025; new.
93	San Jose State University Research Foundation Top agencies NASA (National Aeronautics and Space Administration)	$3,462,706	<0.1%	Rank history: #45 in FY2021, #54 in FY2022, not on the FY2024 list and #61 in FY2025; down 39 since FY2022.
94	University of Alaska System 2 awardees, including University of Alaska Fairbanks Top agencies NASA (National Aeronautics and Space Administration)	$3,454,328	<0.1%	Rank history: not on the FY2021 list, #97 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
95	Ensign-Bickford Industries Inc. 3 awardees, including Honeybee Robotics, Ltd. Top agencies NASA (National Aeronautics and Space Administration)	$3,444,762	<0.1%	Rank history: #72 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; down 29 since FY2022.
96	The Pennsylvania State University Top agencies NASA (National Aeronautics and Space Administration)	$3,325,152	<0.1%	Rank history: #78 in FY2021, #72 in FY2022, #91 in FY2024 and #82 in FY2025; down 24 since FY2022.
97	University of Hawaii Systems 2 awardees, including University of Hawaii Top agencies NASA (National Aeronautics and Space Administration)	$3,300,762	<0.1%	Rank history: #58 in FY2021, #92 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
98	Advanced Space LLC Top agencies NASA (National Aeronautics and Space Administration)	$3,283,982	<0.1%	Rank history: #99 in FY2021, #84 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
99	Rensselaer Polytechnic Institute Top agencies NASA (National Aeronautics and Space Administration)	$3,266,288	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 34 since FY2022.
100	For Inspiration and Recognition of Science and Technology (First) Top agencies NASA (National Aeronautics and Space Administration)	$3,266,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 108 since FY2022.

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100 of 503 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	$2,171,376,972	The Boeing Company
AR12 Space R&D Services; Space Flight, Research and Supporting Activities; Applied Research	$1,724,924,051	California Institute of Technology
AR21 R&D – Space: Science/Applications (Basic Research)	$689,652,119	Northrop Grumman Corporation
AR13 Space R&D Services; Space Flight, Research and Supporting Activities; Experimental Development	$268,823,872	Lockheed Martin Corporation

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 $10.8 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 FY2023?

1. California Institute of Technology ($2.77B), 2. The Boeing Company ($1.49B), 3. Northrop Grumman Corporation ($1.2B), 4. Space Exploration Technologies Corp. ($978M), 5. Lockheed Martin Corporation ($609M), 6. The Johns Hopkins University ($525M), 7. Blue Origin Washington, LLC ($425M), 8. Bechtel Corp ($309M), 9. Association of Universities for Research In Astronomy, Inc. ($202M), 10. L3Harris Technologies, Inc. ($143M).

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