Top 100 Contractors in PSC R: Support Services (Professional, Administrative, Management), FY2024

Name: Top 100 Contractors in PSC R: Support Services (Professional, Administrative, Management), FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 18% of FY2024 PSC R contract dollars

Contract obligations: $116,199,158,956 Net of deobligations, by contracts coded PSC R or a code under it
Contractors: 17,100 Parent companies with an obligation
Largest contractor: Booz Allen Hamilton Holding Corporation $3.8 billion, 3.0% 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	Booz Allen Hamilton Holding Corporation 12 awardees, including Booz Allen Hamilton Inc., Thunderyard Liberty JV LLC and Aquilent, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$3,800,394,360	3.0%	Rank history: #2 in FY2021, #2 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	The Boeing Company 37 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$2,706,559,072	2.2%	Rank history: #3 in FY2021, #5 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	Lockheed Martin Corporation 35 awardees, including Lockheed Martin Services, LLC Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Army (Department of the Army)	$2,506,906,088	2.0%	Rank history: #4 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2025; unchanged since FY2023.
4	Deloitte 8 awardees, including Deloitte Consulting LLP, Deloitte & Touche LLP and Deloitte Financial Advisory Services LLP Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) Navy (Department of the Navy)	$2,481,909,252	2.0%	Rank history: #6 in FY2021, #7 in FY2022, #9 in FY2023 and #8 in FY2025; up 5 since FY2023.
5	General Dynamics Corporation 33 awardees, including General Dynamics Information Technology, Inc., General Dynamics Land Systems Inc. and General Dynamics Mission Systems, Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,314,235,514	1.9%	Rank history: #5 in FY2021, #4 in FY2022, #4 in FY2023 and #7 in FY2025; down 1 since FY2023.
6	V2X, Inc. 4 awardees, including V2X Systems LLC, V2X Aerospace LLC and Vectrus Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DOS (Department of State)	$1,908,011,907	1.5%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
7	KBR Wyle Services LLC 8 awardees, including KBR Services, LLC Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$1,842,067,877	1.5%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2025; new.
8	CACI International Inc. 15 awardees, including Caci, Inc. - Federal, Caci Nss, LLC and Caci Technologies, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,761,818,981	1.4%	Rank history: #13 in FY2021, #12 in FY2022, #8 in FY2023 and #6 in FY2025; unchanged since FY2023.
9	Science Applications International Corporation 9 awardees, including Forfeiture Support Associates LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOS (Department of State)	$1,567,324,915	1.3%	Rank history: #14 in FY2021, #8 in FY2022, #7 in FY2023 and #12 in FY2025; down 2 since FY2023.
10	Leidos Holdings, Inc. 25 awardees, including Leidos, Inc. and Aranea Solutions Inc. Top agencies Army (Department of the Army) DOE (Department of Energy) USAF (Department of the Air Force)	$1,565,602,068	1.3%	Rank history: #12 in FY2021, #14 in FY2022, #12 in FY2023 and #11 in FY2025; up 2 since FY2023.
11	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$1,478,839,116	1.2%	Rank history: #8 in FY2021, #9 in FY2022, #11 in FY2023 and #16 in FY2025; unchanged since FY2023.
12	Northrop Grumman Corporation 49 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$1,337,900,390	1.1%	Rank history: #9 in FY2021, #11 in FY2022, #10 in FY2023 and #9 in FY2025; down 2 since FY2023.
13	Amentum Services, Inc. 14 awardees, including JT4 LLC, PAE Government Services, Inc. and PAE Labat-Anderson LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$1,299,812,095	1.0%	Rank history: #20 in FY2021, #22 in FY2022, #25 in FY2023 and not on the FY2025 list; up 12 since FY2023.
14	The Aerospace Corporation Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) DOI (Department of the Interior)	$1,181,033,997	0.9%	Rank history: #19 in FY2021, #16 in FY2022, #15 in FY2023 and #15 in FY2025; up 1 since FY2023.
15	RTX Corporation 49 awardees, including Raytheon Company and Rockwell Collins, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,117,663,248	0.9%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2025; up 328 since FY2023.
16	Huntington Ingalls Industries, Inc. 8 awardees, including HII Mission Technologies Corp, HII Technical Solutions Corporation and HII Fleet Support Group LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$1,105,476,785	0.9%	Rank history: #69 in FY2021, #29 in FY2022, #27 in FY2023 and #17 in FY2025; up 11 since FY2023.
17	Accenture Federal Services LLC 4 awardees, including Accenture LLP Top agencies Treasury (Department of the Treasury) ED (Department of Education) VA (Department of Veterans Affairs)	$1,052,693,477	0.8%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
18	The Mitre Corporation 3 awardees Top agencies USAF (Department of the Air Force) Treasury (Department of the Treasury) DOT (Department of Transportation)	$1,042,610,279	0.8%	Rank history: #22 in FY2021, #17 in FY2022, #13 in FY2023 and #23 in FY2025; down 5 since FY2023.
19	Maximus Federal Services, Inc. Top agencies HHS (Department of Health and Human Services) ED (Department of Education) DHS (Department of Homeland Security)	$928,350,466	0.7%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; new.
20	Olin Corporation 2 awardees, including Olin Winchester LLC Top agencies Army (Department of the Army)	$910,827,320	0.7%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2025; new.
21	Savannah River Mission Completion, LLC Top agencies DOE (Department of Energy)	$885,649,780	0.7%	Rank history: not on the FY2021 list, #26 in FY2022, #24 in FY2023 and #18 in FY2025; up 3 since FY2023.
22	Serco Inc 3 awardees, including Serco-Ips Corporation and Whitney Bradley & Brown, Inc. Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) Army (Department of the Army)	$839,360,451	0.7%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #22 in FY2025; up 37 since FY2023.
23	Ministry of Defense Top agencies Navy (Department of the Navy)	$789,873,930	0.6%	Rank history: #16 in FY2021, #18 in FY2022, #21 in FY2023 and #24 in FY2025; down 2 since FY2023.
24	Parsons Corporation 6 awardees, including Parsons Government Services Inc., Xator LLC and Parsons Government Services International Inc. Top agencies USAF (Department of the Air Force) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$787,234,343	0.6%	Rank history: #29 in FY2021, #28 in FY2022, #26 in FY2023 and #20 in FY2025; up 2 since FY2023.
25	Carrington Mortgage Services LLC Top agencies HUD (Department of Housing and Urban Development)	$731,003,456	0.6%	Rank history: #53 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
26	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHA (Defense Health Agency)	$707,761,986	0.6%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
27	L3Harris Technologies, Inc. 34 awardees, including L3Harris Technologies Integrated Systems L.P., L3 Technologies, Inc. and L3Harris Forcex, Inc. Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) USSOCOM (United States Special Operations Command)	$675,009,263	0.5%	Rank history: #18 in FY2021, #15 in FY2022, #16 in FY2023 and #25 in FY2025; down 11 since FY2023.
28	BAE Systems 21 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Technology Solutions & Services Inc. and BAE Systems Land & Armaments L.P. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$616,273,265	0.5%	Rank history: #33 in FY2021, #27 in FY2022, #23 in FY2023 and #27 in FY2025; down 5 since FY2023.
29	Guidehouse Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) DOJ (Department of Justice)	$614,156,056	0.5%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
30	Tetra Tech, Inc. 25 awardees, including Ard, Inc., Management Systems International, Inc. and LS Technologies LLC Top agencies USAID (US Agency for International Development) DOT (Department of Transportation) DOS (Department of State)	$575,168,211	0.5%	Rank history: #38 in FY2021, #36 in FY2022, #33 in FY2023 and #43 in FY2025; up 3 since FY2023.
31	ManTech International Corporation 8 awardees, including Mantech Advanced Systems International, Inc., Mantech SRS Technologies, Inc. and Tapestry Technologies, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$531,735,088	0.4%	Rank history: #23 in FY2021, #23 in FY2022, #34 in FY2023 and #33 in FY2025; up 3 since FY2023.
32	Sierra Nevada Company, LLC 6 awardees Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) DCSA (Defense Counterintelligence and Security Agency)	$524,274,009	0.4%	Rank history: #28 in FY2021, #46 in FY2022, #43 in FY2023 and #34 in FY2025; up 11 since FY2023.
33	Credence Management Solutions Limited Liability Company Top agencies USAID (US Agency for International Development) USAF (Department of the Air Force) DOJ (Department of Justice)	$516,564,924	0.4%	Rank history: #76 in FY2021, #67 in FY2022, #54 in FY2023 and #60 in FY2025; up 21 since FY2023.
34	Ernst & Young LLP 3 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$512,066,146	0.4%	Rank history: #40 in FY2021, #51 in FY2022, not on the FY2023 list and #36 in FY2025; returned.
35	Fluor Corporation 4 awardees, including Fluor Intercontinental, Inc., Fluor Federal Petroleum Operations, LLC and Fluor Federal Services Inc. Top agencies DOE (Department of Energy) Army (Department of the Army) DHS (Department of Homeland Security)	$501,061,769	0.4%	Rank history: #35 in FY2021, #53 in FY2022, #39 in FY2023 and #31 in FY2025; up 4 since FY2023.
36	Caci Technologies LLC 8 awardees, including Caci, Inc. - Federal, Caci Nss, LLC and Caci, LLC - Commercial Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$496,432,409	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
37	Amentum Parsons Logistics Services LLC Top agencies Army (Department of the Army)	$478,995,037	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
38	General Atomic Technologies Corporation 5 awardees, including General Atomics Aeronautical Systems, Inc. and General Atomics Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$473,570,394	0.4%	Rank history: #30 in FY2021, #34 in FY2022, #35 in FY2023 and not on the FY2025 list; down 3 since FY2023.
39	DAI Global LLC Top agencies USAID (US Agency for International Development)	$468,893,356	0.4%	Rank history: #62 in FY2021, #52 in FY2022, #42 in FY2023 and #62 in FY2025; up 3 since FY2023.
40	Kpmg LLP 3 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$460,892,572	0.4%	Rank history: #39 in FY2021, #44 in FY2022, #44 in FY2023 and #41 in FY2025; up 4 since FY2023.
41	Jacobs Government Services Company 11 awardees, including Amentum Technology, Inc., Ch2M Hill - CDM Pa-Tac Recovery Services and Jacobs Engineering Group Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$455,365,020	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
42	Research Triangle Institute Top agencies HHS (Department of Health and Human Services) USAID (US Agency for International Development) DOJ (Department of Justice)	$436,915,179	0.3%	Rank history: #52 in FY2021, #58 in FY2022, #50 in FY2023 and #75 in FY2025; up 8 since FY2023.
43	Nelnet Servicing LLC 3 awardees Top agencies ED (Department of Education)	$407,359,352	0.3%	Rank history: #43 in FY2021, #42 in FY2022, #46 in FY2023 and #39 in FY2025; up 3 since FY2023.
44	Smartronix, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$394,832,273	0.3%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; new.
45	KBR Services LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$388,984,329	0.3%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and not on the FY2025 list; down 39 since FY2023.
46	The GEO Group, Inc. 2 awardees, including B.i. Incorporated Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$381,851,552	0.3%	Rank history: #56 in FY2021, #45 in FY2022, #38 in FY2023 and #50 in FY2025; down 8 since FY2023.
47	Acacia Center for Justice Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$381,370,270	0.3%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2025; up 237 since FY2023.
48	Microsoft Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$380,555,694	0.3%	Rank history: #61 in FY2021, #63 in FY2022, #65 in FY2023 and #49 in FY2025; up 17 since FY2023.
49	Family Endeavors, Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$360,954,816	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
50	Fedex Corp 6 awardees, including Fedex Supply Chain Distribution System, Inc. and Federal Express Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$347,445,376	0.3%	Rank history: #59 in FY2021, #60 in FY2022, #52 in FY2023 and #38 in FY2025; up 2 since FY2023.
51	LMI Consulting, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) HHS (Department of Health and Human Services)	$347,084,522	0.3%	Rank history: not on the FY2021 list, #81 in FY2022, #81 in FY2023 and #48 in FY2025; up 30 since FY2023.
52	Torch Technologies Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$344,773,895	0.3%	Rank history: #44 in FY2021, #69 in FY2022, #49 in FY2023 and #42 in FY2025; down 3 since FY2023.
53	CGI Federal Inc. Top agencies DOS (Department of State) DOJ (Department of Justice) DHS (Department of Homeland Security)	$315,460,819	0.3%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
54	The Interpublic Group of Companies Inc 3 awardees, including IPG Dxtra, Inc. Top agencies HHS (Department of Health and Human Services)	$307,424,519	0.2%	Rank history: #36 in FY2021, #47 in FY2022, #41 in FY2023 and not on the FY2025 list; down 13 since FY2023.
55	Arctic Slope Regional Corporation 18 awardees, including Asrc Federal Professional Services, LLC, Asrc Federal System Solutions LLC and Broadleaf, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DOT (Department of Transportation) USAF (Department of the Air Force)	$302,385,363	0.2%	Rank history: #55 in FY2021, #61 in FY2022, #70 in FY2023 and #21 in FY2025; up 15 since FY2023.
56	Vectrus Systems Corporation 3 awardees, including V2X Systems LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$302,139,635	0.2%	Rank history: #11 in FY2021, #13 in FY2022, #5 in FY2023 and not on the FY2025 list; down 51 since FY2023.
57	SRC Inc. 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$299,416,335	0.2%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and #72 in FY2025; up 25 since FY2023.
58	Alsalam Aerospace Industries Company Top agencies USAF (Department of the Air Force)	$298,894,456	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
59	AECOM 8 awardees, including JT4 LLC, AECOM Services, LLC and AECOM Usa, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Army (Department of the Army)	$289,830,899	0.2%	Rank history: #42 in FY2021, #49 in FY2022, #32 in FY2023 and not on the FY2025 list; down 27 since FY2023.
60	International Business Machines Corporation 8 awardees Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DMEA (Defense Microelectronics Activity)	$288,904,103	0.2%	Rank history: #48 in FY2021, #50 in FY2022, #57 in FY2023 and #61 in FY2025; down 3 since FY2023.
61	UnitedHealth Group Incorporated 7 awardees, including Optumrx Administrative Services, LLC, Optumhealth Care Solutions, LLC and The Lewin Group, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$286,018,147	0.2%	Rank history: not on the FY2021 list, #97 in FY2022, not on the FY2023 list and #46 in FY2025; up 92 since FY2023.
62	ABT Global LLC 3 awardees Top agencies USAID (US Agency for International Development) HHS (Department of Health and Human Services) ED (Department of Education)	$284,681,614	0.2%	Rank history: #46 in FY2021, #55 in FY2022, #64 in FY2023 and #70 in FY2025; up 2 since FY2023.
63	Noblis, Inc. 2 awardees, including Noblis MSD LLC Top agencies DOT (Department of Transportation) DTRA (Defense Threat Reduction Agency) DHS (Department of Homeland Security)	$284,311,850	0.2%	Rank history: #77 in FY2021, #56 in FY2022, #53 in FY2023 and #66 in FY2025; down 10 since FY2023.
64	Maximus Education LLC Top agencies ED (Department of Education)	$270,700,626	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, #66 in FY2023 and not on the FY2025 list; up 2 since FY2023.
65	Odyssey Systems Consulting Group Ltd. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$258,914,646	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
66	Michael Baker International, LLC 2 awardees, including Sallyport Global Holdings Inc. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$249,609,464	0.2%	Rank history: #85 in FY2021, #57 in FY2022, #55 in FY2023 and not on the FY2025 list; down 11 since FY2023.
67	HP Enterprise Services LLC 11 awardees, including Peraton Risk Decision Inc., Peraton Inc. and Peraton Technology Services Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) Army (Department of the Army) HHS (Department of Health and Human Services)	$244,363,378	0.2%	Rank history: #58 in FY2021, #21 in FY2022, #14 in FY2023 and not on the FY2025 list; down 53 since FY2023.
68	DDB Chicago Inc. Top agencies Army (Department of the Army)	$238,049,735	0.2%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; new.
69	Westat, Inc. 2 awardees, including Insight Policy Research, Inc. Top agencies HHS (Department of Health and Human Services) ED (Department of Education) DOT (Department of Transportation)	$235,928,805	0.2%	Rank history: #75 in FY2021, #70 in FY2022, #85 in FY2023 and not on the FY2025 list; up 16 since FY2023.
70	Systems Planning and Analysis, Inc. Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) DTRA (Defense Threat Reduction Agency)	$235,806,927	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, #80 in FY2023 and #51 in FY2025; up 10 since FY2023.
71	E.f. Kearney, Limited 2 awardees, including Kearney & Company, P.C. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$235,000,697	0.2%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2025; new.
72	Semanticbits LLC 4 awardees, including ICF Incorporated, L.L.C. and Incentive Technology Group LLC Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) DOJ (Department of Justice)	$234,138,030	0.2%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2025; new.
73	Missouri Higher Education Loan Authority Top agencies ED (Department of Education)	$224,613,038	0.2%	Rank history: not on the FY2021 list, #86 in FY2022, #56 in FY2023 and #59 in FY2025; down 17 since FY2023.
74	Carahsoft Technology Corp Top agencies HHS (Department of Health and Human Services) DOE (Department of Energy) DOI (Department of the Interior)	$216,577,731	0.2%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and #81 in FY2025; down 3 since FY2023.
75	General Dynamics Global Force, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$215,204,198	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Leonardo S.p.A. 8 awardees, including DRS Network & Imaging Systems LLC, DRS Sustainment Systems, Inc. and Laurel Technologies Partnership Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$214,678,442	0.2%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and #37 in FY2025; down 18 since FY2023.
77	BAE Systems Land & Armaments L.P. Top agencies Army (Department of the Army)	$204,684,927	0.2%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2025; new.
78	Omnicom Group Inc. 4 awardees, including DDB Chicago Inc., Gsd&M LLC and Porter Novelli Public Services Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) FCC (Federal Communications Commission)	$191,462,529	0.2%	Rank history: #31 in FY2021, #31 in FY2022, #19 in FY2023 and not on the FY2025 list; down 59 since FY2023.
79	WPP PLC 4 awardees, including Wunderman Thompson LLC, Young & Rubicam LLC and Salmon Group Inc. Top agencies Navy (Department of the Navy) DOE (Department of Energy) OSD (Office of the Secretary of Defense)	$190,539,799	0.2%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2025 list; up 18 since FY2023.
80	Range Generation Next LLC Top agencies USAF (Department of the Air Force)	$186,574,863	0.1%	Rank history: #71 in FY2021, #82 in FY2022, #68 in FY2023 and not on the FY2025 list; down 12 since FY2023.
81	Applied Research Solutions, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$185,802,828	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
82	Scientific Research Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$185,595,754	0.1%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; up 53 since FY2023.
83	Edfinancial Services LLC Top agencies ED (Department of Education)	$185,542,189	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2025; up 29 since FY2023.
84	Deloitte Consulting LLP 2 awardees Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$182,704,770	0.1%	Rank history: not on the FY2021 list, #25 in FY2022, #22 in FY2023 and not on the FY2025 list; down 62 since FY2023.
85	Kbr, Inc. 8 awardees, including KBR Wyle Services, LLC and Dependable Global Solutions, LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) USAF (Department of the Air Force)	$180,993,109	0.1%	Rank history: #1 in FY2021, #1 in FY2022, #29 in FY2023 and not on the FY2025 list; down 56 since FY2023.
86	Amentum Holdings, Inc. 7 awardees, including Amentum Services, Inc., JT4 LLC and PAE Government Services, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$180,901,591	0.1%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
87	The Boston Consulting Group Inc 2 awardees, including BCG Federal Corp. Top agencies DHA (Defense Health Agency) Navy (Department of the Navy) Army (Department of the Army)	$179,967,489	0.1%	Rank history: #65 in FY2021, #88 in FY2022, #48 in FY2023 and not on the FY2025 list; down 39 since FY2023.
88	Fors Marsh Group LLC Top agencies HHS (Department of Health and Human Services) DHRA (Defense Human Resources Activity) CNCS (Corporation for National and Community Service)	$179,660,809	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 358 since FY2023.
89	Oasis Systems, LLC 2 awardees Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$175,912,251	0.1%	Rank history: #57 in FY2021, #41 in FY2022, #67 in FY2023 and #67 in FY2025; down 22 since FY2023.
90	Teamstaff Inc. 5 awardees, including DLH Solutions Inc., Dlh, LLC and Social & Scientific Systems, Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$175,804,951	0.1%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2025; up 11 since FY2023.
91	CGI Technologies and Solutions Inc. 2 awardees, including CGI Federal Inc. Top agencies DOS (Department of State) DOJ (Department of Justice) DHS (Department of Homeland Security)	$174,683,606	0.1%	Rank history: #66 in FY2021, #43 in FY2022, #37 in FY2023 and not on the FY2025 list; down 54 since FY2023.
92	Iron Bow Technologies, LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$165,546,221	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	Signature Choice II, LLC Top agencies VA (Department of Veterans Affairs)	$164,457,790	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Anduril Industries Inc. Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy) USAF (Department of the Air Force)	$160,329,848	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 136 since FY2023.
95	Linquest Corporation Top agencies USAF (Department of the Air Force)	$158,807,638	0.1%	Rank history: #78 in FY2021, #98 in FY2022, #88 in FY2023 and #76 in FY2025; down 7 since FY2023.
96	Applied Research Associates, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DTRA (Defense Threat Reduction Agency)	$157,525,260	0.1%	Rank history: not on the FY2021 list, #96 in FY2022, #75 in FY2023 and #98 in FY2025; down 21 since FY2023.
97	General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Army (Department of the Army)	$153,026,930	0.1%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
98	The Johns Hopkins University Applied Physics Laboratory LLC Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) DHS (Department of Homeland Security)	$152,054,269	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
99	Cherokee Nation Strategic Programs, L.L.C. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOS (Department of State)	$151,530,207	0.1%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2025; new.
100	Information Systems & Networks Corporation Top agencies USDA (Department of Agriculture) HUD (Department of Housing and Urban Development) Navy (Department of the Navy)	$148,944,766	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 16 since FY2023.

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100 of 17,100 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC R

Code	Net obligations	Largest contractor
R4 Professional Services	$89,260,279,566	Booz Allen Hamilton Holding Corporation
R7 Management Support Services	$21,494,605,555	V2X, Inc.
R6 Administrative Support Services	$5,444,273,836	Ministry of Defense

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 $125 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 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.

Quick answers

Who were the top 10 PSC R contractors in FY2024?

1. Booz Allen Hamilton Holding Corporation ($3.8B), 2. The Boeing Company ($2.71B), 3. Lockheed Martin Corporation ($2.51B), 4. Deloitte ($2.48B), 5. General Dynamics Corporation ($2.31B), 6. V2X, Inc. ($1.91B), 7. KBR Wyle Services LLC ($1.84B), 8. CACI International Inc. ($1.76B), 9. Science Applications International Corporation ($1.57B), 10. Leidos Holdings, Inc. ($1.57B).

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