Top 37 Contractors in PSC B541: Defense Studies, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Institute for Defense Analyses Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$215,846,376	25.6%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and not on the FY2025 list; unchanged since FY2023.
2	The Johns Hopkins University Applied Physics Laboratory LLC Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) DTRA (Defense Threat Reduction Agency)	$162,351,439	19.3%	Rank history: #26 in FY2021, #21 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
3	Parsons Corporation Through Parsons Government Services Inc. Top agencies USAF (Department of the Air Force)	$143,647,215	17.0%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #1 in FY2025; up 2 since FY2023.
4	The Rand Corporation Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army)	$117,260,182	13.9%	Rank history: #3 in FY2021, #2 in FY2022, #3 in FY2023 and #4 in FY2025; down 1 since FY2023.
5	The CNA Corporation Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service) Army (Department of the Army)	$102,184,364	12.1%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #3 in FY2025; down 1 since FY2023.
6	Lockheed Martin Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$25,949,466	3.1%	Rank history: #6 in FY2021, #5 in FY2022, #7 in FY2023 and #5 in FY2025; up 1 since FY2023.
7	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$15,393,516	1.8%	Rank history: #7 in FY2021, #6 in FY2022, #6 in FY2023 and #6 in FY2025; down 1 since FY2023.
8	Applied Research Associates, Inc. 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,004,931	0.9%	Rank history: #30 in FY2021, not on the FY2022 list, #8 in FY2023 and not on the FY2025 list; unchanged since FY2023.
9	The Johns Hopkins University Through The Johns Hopkins University Applied Physics Laboratory LLC Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) DTRA (Defense Threat Reduction Agency)	$7,130,996	0.8%	Rank history: #2 in FY2021, #3 in FY2022, #2 in FY2023 and not on the FY2025 list; down 7 since FY2023.
10	Hart Technologies, Inc. Top agencies Navy (Department of the Navy)	$7,025,105	0.8%	Rank history: #10 in FY2021, #11 in FY2022, #11 in FY2023 and #7 in FY2025; up 1 since FY2023.
11	Scientific Research Corporation Top agencies OSD (Office of the Secretary of Defense)	$4,604,656	0.5%	Rank history: #8 in FY2021, #14 in FY2022, #10 in FY2023 and #10 in FY2025; down 1 since FY2023.
12	Deloitte Through Deloitte Consulting LLP Top agencies USAF (Department of the Air Force)	$3,937,830	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
13	American Systems Corporation Top agencies OSD (Office of the Secretary of Defense)	$2,599,459	0.3%	Rank history: #13 in FY2021, #10 in FY2022, #12 in FY2023 and not on the FY2025 list; down 1 since FY2023.
14	Analytic Services Inc. Top agencies OSD (Office of the Secretary of Defense)	$2,450,980	0.3%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
15	Sri International Top agencies DARPA (Defense Advanced Research Projects Agency)	$2,100,492	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
16	Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force)	$1,730,054	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
17	Fedtec LLC Top agencies Navy (Department of the Navy)	$803,821	0.1%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2023 and #12 in FY2025; up 2 since FY2023.
18	The Trustees of the Stevens Institute of Technology Top agencies OSD (Office of the Secretary of Defense)	$749,919	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
19	The Boeing Company 2 awardees Top agencies Navy (Department of the Navy)	$538,001	0.1%	Rank history: #29 in FY2021, #19 in FY2022, #15 in FY2023 and #20 in FY2025; down 4 since FY2023.
20	Applied Mathematics, Inc. Top agencies Navy (Department of the Navy)	$474,240	0.1%	Rank history: #28 in FY2021, #25 in FY2022, #20 in FY2023 and #13 in FY2025; unchanged since FY2023.
21	The Navsys Corporation Top agencies DARPA (Defense Advanced Research Projects Agency)	$360,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
22	Punch Cyber Corp Top agencies DARPA (Defense Advanced Research Projects Agency)	$345,352	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
23	Quantitative Biosciences, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$315,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
24	Aquagga Inc Top agencies DARPA (Defense Advanced Research Projects Agency)	$309,849	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
25	Offroad Autonomy Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$308,523	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
26	The Potomac Institute for Policy Studies Top agencies Navy (Department of the Navy)	$299,605	<0.1%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
27	Formalloy Technologies, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$260,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; new.
28	Air & Space Forces Association Top agencies USAF (Department of the Air Force)	$247,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
29	DRS Naval Power Systems Inc. Top agencies Navy (Department of the Navy)	$138,086	<0.1%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023 and not on the FY2025 list; down 6 since FY2023.
30	Center for Strategic and Budgetary Assessments Top agencies Navy (Department of the Navy)	$109,844	<0.1%	Rank history: #31 in FY2021, #28 in FY2022, #24 in FY2023 and #46 in FY2025; down 6 since FY2023.
31	Miami University Top agencies OSD (Office of the Secretary of Defense)	$81,928	<0.1%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; new.
32	Hudson Institute, Inc. Top agencies Navy (Department of the Navy)	$68,000	<0.1%	Rank history: not on the FY2021 list, #30 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
33	Jane'S Group UK Limited Top agencies Army (Department of the Army)	$28,627	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
34	Leonardo S.p.A. 2 awardees, including DRS Naval Power Systems Inc. Top agencies Navy (Department of the Navy)	$24,746	<0.1%	Rank history: #36 in FY2021, #26 in FY2022, not on the FY2023 list and #44 in FY2025; returned.
35	Confederated Tribes and Bands of the Yakama Nation Top agencies Army (Department of the Army)	$18,884	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
36	Center for Strategic & International Studies Inc. Top agencies MDA (DOD Missile Defense Agency)	$12,020	<0.1%	Rank history: #33 in FY2021, not on the FY2022–FY2023 lists and #50 in FY2025; returned.
37	It Cadre LLC Top agencies USAF (Department of the Air Force)	$12,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and not on the FY2025 list; down 20 since FY2023.

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 $843 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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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