Top 63 Contractors in PSC AC31: National Defense R&D Services; Defense-Related Activities; Basic Research, Jul 2025–Jun 2026

Name: Top 63 Contractors in PSC AC31: National Defense R&D Services; Defense-Related Activities; Basic Research, 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 89% of PSC AC31 contract dollars from July 2025 through June 2026

Contract obligations: $1,271,369,291 Net of deobligations, by contracts coded PSC AC31
Contractors: 67 Parent companies with an obligation
Largest contractor: Massachusetts Institute of Technology $839 million, 65.1% of obligations
Data as of: Oct 16, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 63 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Massachusetts Institute of Technology 2 awardees Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) MDA (DOD Missile Defense Agency)	$839,466,012	65.1%	Rank history: not on the FY2021–FY2022 lists, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Advanced Technology International Top agencies Navy (Department of the Navy)	$71,269,130	5.5%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
3	Carnegie Mellon University 2 awardees Top agencies USAF (Department of the Air Force) WHS (DOD Washington Headquarters Service) Navy (Department of the Navy)	$71,252,149	5.5%	Rank history: #26 in FY2021, #8 in FY2022, #6 in FY2023, #8 in FY2024 and #3 in FY2025; up 6 since Jul 2024–Jun 2025.
4	Cubrc, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$32,345,533	2.5%	Rank history: #40 in FY2021, #1 in FY2022, #2 in FY2023, #6 in FY2024 and #4 in FY2025; up 6 since Jul 2024–Jun 2025.
5	Mclaughlin Research Corporation Top agencies Navy (Department of the Navy)	$29,838,454	2.3%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #5 in FY2025; down 1 since Jul 2024–Jun 2025.
6	Lockheed Martin Corporation 4 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$29,503,803	2.3%	Rank history: #7 in FY2021, #27 in FY2022, #9 in FY2023, #7 in FY2024 and #6 in FY2025; up 2 since Jul 2024–Jun 2025.
7	Envisioneering Inc. Top agencies Navy (Department of the Navy)	$21,766,542	1.7%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #11 in FY2025; up 10 since Jul 2024–Jun 2025.
8	RTX Corporation Through Raytheon Company Top agencies Navy (Department of the Navy)	$20,480,565	1.6%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; new, not ranked in Jul 2024–Jun 2025.
9	Hypergiant Galactic Systems, Inc. Top agencies USAF (Department of the Air Force)	$15,636,435	1.2%	Rank history: #23 in FY2021, #17 in FY2022, #10 in FY2023, #10 in FY2024 and #7 in FY2025; down 2 since Jul 2024–Jun 2025.
10	American Systems Corporation Top agencies Navy (Department of the Navy)	$13,547,383	1.1%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; up 66 since Jul 2024–Jun 2025.
11	Geneva Technologies, Inc. Top agencies USAF (Department of the Air Force)	$12,518,885	1.0%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; up 59 since Jul 2024–Jun 2025.
12	Chenega Professional & Technical Services LLC Top agencies DHA (Defense Health Agency)	$11,690,491	0.9%	Rank history: not on the FY2021 list, #10 in FY2022, #11 in FY2023, #11 in FY2024 and #13 in FY2025; up 7 since Jul 2024–Jun 2025.
13	World Wide Technology LLC Top agencies USAF (Department of the Air Force)	$11,299,302	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
14	Scitec Innovations LLC Top agencies USAF (Department of the Air Force)	$8,904,462	0.7%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #14 in FY2025; up 2 since Jul 2024–Jun 2025.
15	Technology Service Corp Top agencies Navy (Department of the Navy)	$8,663,324	0.7%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; up 58 since Jul 2024–Jun 2025.
16	Seed Innovations, LLC Top agencies USAF (Department of the Air Force)	$8,507,217	0.7%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023, #19 in FY2024 and #12 in FY2025; down 3 since Jul 2024–Jun 2025.
17	Einhorn Engineering PLLC Top agencies Navy (Department of the Navy)	$8,067,121	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
18	Cutlass Systems Engineering LLC Top agencies Navy (Department of the Navy)	$8,035,434	0.6%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; up 64 since Jul 2024–Jun 2025.
19	Matrix Research Inc Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$5,308,497	0.4%	Rank history: not on the FY2021 list, #53 in FY2022, #23 in FY2023, #18 in FY2024 and #18 in FY2025; up 3 since Jul 2024–Jun 2025.
20	The Pennsylvania State University Top agencies Navy (Department of the Navy)	$5,238,797	0.4%	Rank history: not on the FY2021 list, #42 in FY2022, #33 in FY2023, #34 in FY2024 and #20 in FY2025; up 6 since Jul 2024–Jun 2025.
21	Antares Nuclear, Inc. Top agencies USAF (Department of the Air Force)	$4,199,862	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
22	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Army (Department of the Army)	$3,970,079	0.3%	Rank history: not on the FY2021 list, #20 in FY2022, #17 in FY2023, #23 in FY2024 and #21 in FY2025; down 4 since Jul 2024–Jun 2025.
23	Bluestone Logic, LLC Top agencies DISA (Defense Information Systems Agency)	$3,676,497	0.3%	Rank history: #11 in FY2021, #31 in FY2022, #24 in FY2023, #33 in FY2024 and #23 in FY2025; up 13 since Jul 2024–Jun 2025.
24	Sedaro Corporation Top agencies USAF (Department of the Air Force)	$3,609,409	0.3%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; up 53 since Jul 2024–Jun 2025.
25	Qinetiq Inc. Top agencies Army (Department of the Army)	$2,303,937	0.2%	Rank history: not on the FY2021–FY2023 lists, #30 in FY2024 and #31 in FY2025; up 7 since Jul 2024–Jun 2025.
26	Applied Research Associates, Inc. Top agencies USAF (Department of the Air Force) DTRA (Defense Threat Reduction Agency)	$2,260,939	0.2%	Rank history: #13 in FY2021, #23 in FY2022, #12 in FY2023, #16 in FY2024 and #28 in FY2025; down 3 since Jul 2024–Jun 2025.
27	Astrion Group, LLC Top agencies Navy (Department of the Navy)	$2,049,915	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
28	Calnetix Technologies LLC Top agencies Navy (Department of the Navy)	$1,492,775	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
29	Defense Engineering Corp Top agencies USAF (Department of the Air Force)	$1,424,301	0.1%	Rank history: not on the FY2021 list, #33 in FY2022, #26 in FY2023, #20 in FY2024 and #29 in FY2025; down 5 since Jul 2024–Jun 2025.
30	The Survice Engineering Company LLC Top agencies OSD (Office of the Secretary of Defense)	$1,314,313	0.1%	Rank history: #30 in FY2021, #40 in FY2022, #43 in FY2023, #40 in FY2024 and #32 in FY2025; up 5 since Jul 2024–Jun 2025.
31	General Dynamics Corporation 2 awardees, including Bath Iron Works Corporation Top agencies Navy (Department of the Navy)	$1,234,511	0.1%	Rank history: #1 in FY2021, #96 in FY2022, not on the FY2023 list, #5 in FY2024 and #10 in FY2025; down 26 since Jul 2024–Jun 2025.
32	Colvin Run Networks, Inc. Top agencies Navy (Department of the Navy)	$1,053,567	0.1%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; up 24 since Jul 2024–Jun 2025.
33	Clear Carbon & Components, Inc. Top agencies Navy (Department of the Navy)	$1,031,801	0.1%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #63 in FY2025; up 16 since Jul 2024–Jun 2025.
34	Hamr Industries LLC Top agencies Navy (Department of the Navy)	$1,023,308	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
35	Igneon Aerospace LLC Top agencies USAF (Department of the Air Force)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
36	Bubble Technology Industries Inc. Top agencies DHS (Department of Homeland Security)	$980,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Jul 2024–Jun 2025.
37	Simventions Inc. Top agencies Navy (Department of the Navy)	$975,000	0.1%	Rank history: not on the FY2021 list, #65 in FY2022, #45 in FY2023, #52 in FY2024 and #55 in FY2025; up 18 since Jul 2024–Jun 2025.
38	Physical Sciences Inc. Top agencies USAF (Department of the Air Force)	$799,993	0.1%	Rank history: #44 in FY2021, #56 in FY2022, #58 in FY2023, #39 in FY2024 and not on the FY2025 list; unchanged since Jul 2024–Jun 2025.
39	Nag, LLC Top agencies Navy (Department of the Navy)	$775,410	0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023, not on the FY2024 list and #39 in FY2025; up 24 since Jul 2024–Jun 2025.
40	Orbis Sibro Inc. Top agencies Navy (Department of the Navy)	$734,332	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
41	Cherokee Nation Armored Solutions, LLC Top agencies Army (Department of the Army)	$718,731	0.1%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023, #44 in FY2024 and #33 in FY2025; down 4 since Jul 2024–Jun 2025.
42	Electro-Magnetic Applications, Incorporated Top agencies Navy (Department of the Navy)	$602,855	<0.1%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #42 in FY2025; up 9 since Jul 2024–Jun 2025.
43	Prenosis, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$508,783	<0.1%	Rank history: #25 in FY2021, #48 in FY2022, #53 in FY2023, #47 in FY2024 and #46 in FY2025; new, not ranked in Jul 2024–Jun 2025.
44	San Diego State University Foundation Top agencies Navy (Department of the Navy)	$453,792	<0.1%	Rank history: #51 in FY2021, not on the FY2022–FY2023 lists, #62 in FY2024 and #57 in FY2025; up 18 since Jul 2024–Jun 2025.
45	Indal Technologies Inc Through Curtiss-Wright Flow Control Corporation Top agencies Navy (Department of the Navy)	$420,349	<0.1%	Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; down 1 since Jul 2024–Jun 2025.
46	University of Texas At Austin Top agencies Navy (Department of the Navy)	$420,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; up 22 since Jul 2024–Jun 2025.
47	Foundation for Marine Ecology and Telemetry Research Top agencies Navy (Department of the Navy)	$358,899	<0.1%	Rank history: not on the FY2021 list, #74 in FY2022, #62 in FY2023, #56 in FY2024 and #51 in FY2025; up 1 since Jul 2024–Jun 2025.
48	Aneon Federal Solutions LLC Top agencies DOT (Department of Transportation)	$301,495	<0.1%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; up 6 since Jul 2024–Jun 2025.
49	University of Texas System Through University of Texas At Austin Top agencies Navy (Department of the Navy)	$285,000	<0.1%	Rank history: not on the FY2021 list, #39 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
50	BIO Response Solutions Inc Top agencies DHA (Defense Health Agency)	$259,929	<0.1%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
51	Esco Technologies Inc. Through Vacco Industries Top agencies Navy (Department of the Navy)	$196,616	<0.1%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #52 in FY2025; down 11 since Jul 2024–Jun 2025.
52	Aleta Technologies Inc Top agencies USAF (Department of the Air Force)	$139,985	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
53	Defense Unicorns, Inc. Top agencies USAF (Department of the Air Force)	$139,958	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
54	Lineaje Inc. Top agencies USAF (Department of the Air Force)	$139,931	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
55	Rapid Innovation & Security Experts, Inc. Top agencies Navy (Department of the Navy)	$124,291	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
56	Jered LLC Top agencies Navy (Department of the Navy)	$114,675	<0.1%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; up 4 since Jul 2024–Jun 2025.
57	Hebi Robotics, Inc. Top agencies Navy (Department of the Navy)	$91,740	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
58	National Strategic Research Institute Top agencies USAF (Department of the Air Force)	$89,123	<0.1%	Rank history: not on the FY2021 list, #92 in FY2022, #57 in FY2023, #50 in FY2024 and #54 in FY2025; down 12 since Jul 2024–Jun 2025.
59	Brown University Top agencies Navy (Department of the Navy)	$60,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; new, not ranked in Jul 2024–Jun 2025.
60	Serco Inc Top agencies USAF (Department of the Air Force)	$55,919	<0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Jul 2024–Jun 2025.
61	Safety Management Services Inc. Top agencies Navy (Department of the Navy)	$18,200	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
62	Advanced Acoustic Concepts, LLC Top agencies Navy (Department of the Navy)	$10,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
63	Culmen International, LLC Top agencies Navy (Department of the Navy)	$9,171	<0.1%	Rank history: not on the FY2021 list, #41 in FY2022, #66 in FY2023, #65 in FY2024 and #45 in FY2025; down 10 since Jul 2024–Jun 2025.

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63 of 67 contractors listed here. See the rest on GovTribe.

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 $1.29 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 AC31 contractors in Jul 2025–Jun 2026?

1. Massachusetts Institute of Technology ($839M), 2. Advanced Technology International ($71.3M), 3. Carnegie Mellon University ($71.3M), 4. Cubrc, Inc. ($32.3M), 5. Mclaughlin Research Corporation ($29.8M), 6. Lockheed Martin Corporation ($29.5M), 7. Envisioneering Inc. ($21.8M), 8. RTX Corporation ($20.5M), 9. Hypergiant Galactic Systems, Inc. ($15.6M), 10. American Systems Corporation ($13.5M).

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