Top 25 Contractors in PSC AC21: National Defense R&D Services; Atomic Energy Defense Activities; Basic Research, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Bluestaq LLC Top agencies USAF (Department of the Air Force)	$115,823,143	40.7%	Rank history: #9 in FY2021, #3 in FY2022, #2 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Kratos S2, Inc. Top agencies USAF (Department of the Air Force)	$58,529,490	20.6%	Rank history: #5 in FY2021, #7 in FY2022, not on the FY2023 list and #3 in FY2024; up 1 since FY2024.
3	X-Bow Launch Systems Inc. Top agencies USAF (Department of the Air Force)	$21,221,009	7.5%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2023 and #5 in FY2024; up 2 since FY2024.
4	Force Measurement Systems, Inc. Top agencies USAF (Department of the Air Force)	$11,680,097	4.1%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023 and #15 in FY2024; up 11 since FY2024.
5	Amentum Holdings, Inc. Through Amentum Technology, Inc. Top agencies USAF (Department of the Air Force)	$11,603,007	4.1%	Rank history: not on the FY2021–FY2024 lists; new.
6	Stratolaunch, LLC Top agencies USAF (Department of the Air Force)	$9,900,000	3.5%	Rank history: not on the FY2021 list, #17 in FY2022, #7 in FY2023 and #9 in FY2024; up 3 since FY2024.
7	Tecolote Research, Inc. Top agencies USAF (Department of the Air Force)	$9,783,494	3.4%	Rank history: #12 in FY2021, #9 in FY2022, #8 in FY2023 and #7 in FY2024; unchanged since FY2024.
8	Teledyne Technologies Incorporated Through Teledyne Brown Engineering, Inc. Top agencies Army (Department of the Army)	$8,113,256	2.9%	Rank history: #8 in FY2021, #6 in FY2022, #3 in FY2023 and #4 in FY2024; down 4 since FY2024.
9	Moog Inc. Top agencies USAF (Department of the Air Force)	$7,583,365	2.7%	Rank history: not on the FY2021 list, #34 in FY2022, #26 in FY2023 and #20 in FY2024; up 11 since FY2024.
10	Firefly Aerospace Inc. Top agencies USAF (Department of the Air Force)	$4,500,000	1.6%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; up 1 since FY2024.
11	Firehawk Aerospace Inc. Top agencies USAF (Department of the Air Force)	$4,499,958	1.6%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; down 1 since FY2024.
12	Serco Inc. Top agencies Army (Department of the Army)	$4,375,462	1.5%	Rank history: not on the FY2021–FY2024 lists; new.
13	QWK Integrated Solutions LLC Top agencies Army (Department of the Army)	$3,362,577	1.2%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; up 3 since FY2024.
14	Geneva Technologies, Inc. Top agencies USAF (Department of the Air Force)	$2,369,082	0.8%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2024; up 3 since FY2024.
15	Ursa Major Technologies Inc. Top agencies USAF (Department of the Air Force)	$1,900,000	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
16	Phase Four Inc. Top agencies USAF (Department of the Air Force)	$1,799,997	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
17	Nevada System of Higher Education Top agencies DOE (Department of Energy)	$1,745,000	0.6%	Rank history: not on the FY2021 list, #23 in FY2022, not on the FY2023 list and #8 in FY2024; down 9 since FY2024.
18	Electronic Fluorocarbons, LLC Top agencies USAF (Department of the Air Force)	$797,269	0.3%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; up 12 since FY2024.
19	University of Texas At Austin Top agencies Navy (Department of the Navy)	$784,246	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
20	Supercool Metals Inc. Top agencies DLA (Defense Logistics Agency)	$681,152	0.2%	Rank history: not on the FY2021 list, #30 in FY2022 and not on the FY2023–FY2024 lists; returned.
21	Chickasaw Strategic Pointe, LLC Top agencies Army (Department of the Army)	$507,443	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
22	Engineering and Software System Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$499,788	0.2%	Rank history: not on the FY2021 list, #21 in FY2022 and not on the FY2023–FY2024 lists; returned.
23	RTX Corporation Through Raytheon Company Top agencies MDA (DOD Missile Defense Agency)	$211,843	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
24	Advanced Cooling Technologies Inc. Top agencies USAF (Department of the Air Force)	$179,993	0.1%	Rank history: not on the FY2021 list, #31 in FY2022 and not on the FY2023–FY2024 lists; returned.
25	Skystocks, Inc. Top agencies USAF (Department of the Air Force)	$179,950	0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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 $284 million 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 takes the color of the rank change beside it.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

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