Top 25 Contractors in PSC B541: Defense Studies, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Institute for Defense Analyses Top agencies OSD (Office of the Secretary of Defense) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$218,699,787	29.1%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2024 and not on the FY2025 list; unchanged since FY2022.
2	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)	$173,184,357	23.1%	Rank history: #2 in FY2021, #3 in FY2022, #9 in FY2024 and not on the FY2025 list; up 1 since FY2022.
3	The Rand Corporation Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army)	$117,993,803	15.7%	Rank history: #3 in FY2021, #2 in FY2022, #4 in FY2024 and #4 in FY2025; down 1 since FY2022.
4	The CNA Corporation Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$98,150,388	13.1%	Rank history: #4 in FY2021, #4 in FY2022, #5 in FY2024 and #3 in FY2025; unchanged since FY2022.
5	Parsons Corporation Through Parsons Government Services Inc. Top agencies USAF (Department of the Air Force)	$51,562,094	6.9%	Rank history: not on the FY2021–FY2022 lists, #3 in FY2024 and #1 in FY2025; new.
6	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$18,496,004	2.5%	Rank history: #7 in FY2021, #6 in FY2022, #7 in FY2024 and #6 in FY2025; unchanged since FY2022.
7	Lockheed Martin Corporation Top agencies USAF (Department of the Air Force)	$13,164,428	1.8%	Rank history: #6 in FY2021, #5 in FY2022, #6 in FY2024 and #5 in FY2025; down 2 since FY2022.
8	Applied Research Associates, Inc. 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$13,028,495	1.7%	Rank history: #30 in FY2021, not on the FY2022 list, #8 in FY2024 and not on the FY2025 list; returned.
9	Gomez Research Associates Inc. Top agencies Navy (Department of the Navy)	$11,416,140	1.5%	Rank history: #9 in FY2021, #9 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
10	Scientific Research Corporation Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army)	$5,768,469	0.8%	Rank history: #8 in FY2021, #14 in FY2022, #11 in FY2024 and #10 in FY2025; up 4 since FY2022.
11	Hart Technologies, Inc. Top agencies Navy (Department of the Navy)	$4,953,099	0.7%	Rank history: #10 in FY2021, #11 in FY2022, #10 in FY2024 and #7 in FY2025; unchanged since FY2022.
12	American Systems Corporation Top agencies OSD (Office of the Secretary of Defense)	$2,981,144	0.4%	Rank history: #13 in FY2021, #10 in FY2022, #13 in FY2024 and not on the FY2025 list; down 2 since FY2022.
13	Deloitte LLP Through Deloitte Consulting LLP Top agencies USAF (Department of the Air Force)	$1,826,185	0.2%	Rank history: #19 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
14	Systems and Proposal Engineering Company Top agencies Navy (Department of the Navy)	$1,406,448	0.2%	Rank history: #15 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
15	The Boeing Company 2 awardees Top agencies Navy (Department of the Navy)	$1,339,214	0.2%	Rank history: #29 in FY2021, #19 in FY2022, #19 in FY2024 and #20 in FY2025; up 4 since FY2022.
16	Georgia TECH Research Corp Through Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force)	$1,000,000	0.1%	Rank history: #20 in FY2021, #13 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
17	It Cadre LLC Top agencies USAF (Department of the Air Force)	$575,204	0.1%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2024 and not on the FY2025 list; new.
18	BAE Systems Technology Solutions & Services Inc. Top agencies Navy (Department of the Navy)	$552,895	0.1%	Rank history: not on the FY2021 list, #8 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
19	Fedtec LLC Top agencies Navy (Department of the Navy)	$510,885	0.1%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2024 and #12 in FY2025; new.
20	Applied Mathematics, Inc. Top agencies Navy (Department of the Navy)	$449,280	0.1%	Rank history: #28 in FY2021, #25 in FY2022, #20 in FY2024 and #13 in FY2025; up 5 since FY2022.
21	Southwest Research Institute Top agencies DHS (Department of Homeland Security)	$349,950	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
22	Science Applications International Corporation Top agencies USAF (Department of the Air Force)	$337,682	<0.1%	Rank history: #12 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
23	DRS Naval Power Systems Inc. Top agencies Navy (Department of the Navy)	$209,017	<0.1%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and not on the FY2025 list; new.
24	Center for Strategic and Budgetary Assessments Top agencies Navy (Department of the Navy)	$104,990	<0.1%	Rank history: #31 in FY2021, #28 in FY2022, #30 in FY2024 and #46 in FY2025; up 4 since FY2022.
25	The Pennsylvania State University Top agencies Army (Department of the Army)	$10,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 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 $751 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 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.

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