Top 100 Contractors in PSC R: Support Services (Professional, Administrative, Management), FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Booz Allen Hamilton Holding Corporation 8 awardees, including Booz Allen Hamilton Inc., Shore Systems & Solutions LLC and Aquilent, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$3,508,143,553	2.9%	Rank history: #2 in FY2021, #2 in FY2022, #1 in FY2024 and #1 in FY2025; up 1 since FY2022.
2	The Boeing Company 26 awardees, including Boeing Sikorsky Aircraft Support, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$2,505,080,390	2.1%	Rank history: #3 in FY2021, #5 in FY2022, #2 in FY2024 and #2 in FY2025; up 3 since FY2022.
3	Lockheed Martin Corporation 34 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)	$2,499,515,052	2.1%	Rank history: #4 in FY2021, #3 in FY2022, #3 in FY2024 and #3 in FY2025; unchanged since FY2022.
4	General Dynamics Corporation 29 awardees, including General Dynamics Information Technology, Inc., General Dynamics Land Systems Inc. and General Dynamics Global Force, LLC Top agencies Army (Department of the Army) DOS (Department of State) VA (Department of Veterans Affairs)	$2,373,326,610	2.0%	Rank history: #5 in FY2021, #4 in FY2022, #5 in FY2024 and #7 in FY2025; unchanged since FY2022.
5	Vectrus Systems Corporation 4 awardees, including V2X Systems LLC and Advantor Systems II LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DOS (Department of State)	$2,332,648,451	2.0%	Rank history: #11 in FY2021, #13 in FY2022, #56 in FY2024 and not on the FY2025 list; up 8 since FY2022.
6	KBR Services LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,948,056,546	1.6%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and not on the FY2025 list; up 100 since FY2022.
7	Science Applications International Corporation 12 awardees, including Forfeiture Support Associates LLC and Engility Services, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$1,851,425,712	1.6%	Rank history: #14 in FY2021, #8 in FY2022, #9 in FY2024 and #12 in FY2025; up 1 since FY2022.
8	CACI International Inc. 22 awardees, including Caci, Inc. - Federal, Caci Nss, LLC and Caci Technologies, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DCSA (Defense Counterintelligence and Security Agency)	$1,732,610,836	1.5%	Rank history: #13 in FY2021, #12 in FY2022, #8 in FY2024 and #6 in FY2025; up 4 since FY2022.
9	Deloitte LLP 6 awardees, including Deloitte Consulting LLP, Deloitte & Touche LLP and Deloitte Financial Advisory Services LLP Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,674,673,521	1.4%	Rank history: #6 in FY2021, #7 in FY2022, #4 in FY2024 and #8 in FY2025; down 2 since FY2022.
10	Northrop Grumman Corporation 48 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,485,637,196	1.2%	Rank history: #9 in FY2021, #11 in FY2022, #12 in FY2024 and #9 in FY2025; up 1 since FY2022.
11	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$1,274,262,793	1.1%	Rank history: #8 in FY2021, #9 in FY2022, #11 in FY2024 and #16 in FY2025; down 2 since FY2022.
12	Leidos Holdings, Inc. 23 awardees, including Leidos, Inc. and Aranea Solutions Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOE (Department of Energy)	$1,255,604,258	1.1%	Rank history: #12 in FY2021, #14 in FY2022, #10 in FY2024 and #11 in FY2025; up 2 since FY2022.
13	The Mitre Corporation 3 awardees Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) HHS (Department of Health and Human Services)	$1,184,372,248	1.0%	Rank history: #22 in FY2021, #17 in FY2022, #18 in FY2024 and #23 in FY2025; up 4 since FY2022.
14	HP Enterprise Services LLC 17 awardees, including Peraton Inc., Peraton Risk Decision Inc. and Peraton Technology Services Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DCSA (Defense Counterintelligence and Security Agency)	$1,154,085,222	1.0%	Rank history: #58 in FY2021, #21 in FY2022, #67 in FY2024 and not on the FY2025 list; up 7 since FY2022.
15	The Aerospace Corporation Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) DOI (Department of the Interior)	$1,127,885,870	0.9%	Rank history: #19 in FY2021, #16 in FY2022, #14 in FY2024 and #15 in FY2025; up 1 since FY2022.
16	L3Harris Technologies, Inc. 34 awardees, including L3Harris Technologies Integrated Systems L.P., L3 Technologies, Inc. and CAE USA Inc. Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) USSOCOM (United States Special Operations Command)	$1,103,915,700	0.9%	Rank history: #18 in FY2021, #15 in FY2022, #27 in FY2024 and #25 in FY2025; down 1 since FY2022.
17	RTX Corporation 52 awardees, including Raytheon Company, Raytheon / Lockheed Martin Javelin JV and Rockwell Collins, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,092,909,575	0.9%	Rank history: #7 in FY2021, #10 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
18	Maximus Inc. 8 awardees, including Maximus Federal Services, Inc., Maximus Federal Technology Solutions, LLC and Q2 Administrators, LLC Top agencies HHS (Department of Health and Human Services) ED (Department of Education) WHS (DOD Washington Headquarters Service)	$1,011,153,062	0.8%	Rank history: #17 in FY2021, #20 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
19	Omnicom Group Inc. 6 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) HHS (Department of Health and Human Services)	$998,942,296	0.8%	Rank history: #31 in FY2021, #31 in FY2022, #78 in FY2024 and not on the FY2025 list; up 12 since FY2022.
20	Accenture Inc. 2 awardees, including Accenture Federal Services LLC Top agencies Treasury (Department of the Treasury) ED (Department of Education) DHS (Department of Homeland Security)	$992,185,820	0.8%	Rank history: not on the FY2021 list, #40 in FY2022 and not on the FY2024–FY2025 lists; up 20 since FY2022.
21	Ministry of Defense Top agencies Navy (Department of the Navy)	$905,871,961	0.8%	Rank history: #16 in FY2021, #18 in FY2022, #23 in FY2024 and #24 in FY2025; down 3 since FY2022.
22	Deloitte Consulting LLP 2 awardees Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$887,059,252	0.7%	Rank history: not on the FY2021 list, #25 in FY2022, #84 in FY2024 and not on the FY2025 list; up 3 since FY2022.
23	BAE Systems PLC 18 awardees, including BAE Systems Land & Armaments L.P., BAE Systems Technology Solutions & Services Inc. and BAE Systems Information and Electronic Systems Integration Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$840,473,019	0.7%	Rank history: #33 in FY2021, #27 in FY2022, #28 in FY2024 and #27 in FY2025; up 4 since FY2022.
24	Savannah River Mission Completion, LLC Top agencies DOE (Department of Energy)	$823,336,868	0.7%	Rank history: not on the FY2021 list, #26 in FY2022, #21 in FY2024 and #18 in FY2025; up 2 since FY2022.
25	Amentum Services, Inc. 2 awardees, including Dyncorp International LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) Treasury (Department of the Treasury)	$773,228,717	0.6%	Rank history: #20 in FY2021, #22 in FY2022, #13 in FY2024 and not on the FY2025 list; down 3 since FY2022.
26	Parsons Corporation 8 awardees, including Parsons Government Services Inc., Polaris Alpha, LLC and Ptsi Managed Services Inc. Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$757,873,151	0.6%	Rank history: #29 in FY2021, #28 in FY2022, #24 in FY2024 and #20 in FY2025; up 2 since FY2022.
27	Huntington Ingalls Industries, Inc. 8 awardees, including HII Mission Technologies Corp, HII Fleet Support Group LLC and HII Technical Solutions Corporation Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) Navy (Department of the Navy)	$683,383,188	0.6%	Rank history: #69 in FY2021, #29 in FY2022, #16 in FY2024 and #17 in FY2025; up 2 since FY2022.
28	Guidehouse Inc. 2 awardees Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) DOS (Department of State)	$666,311,010	0.6%	Rank history: #24 in FY2021, #32 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
29	Kbr, Inc. 9 awardees, including KBR Wyle Services, LLC and Kord Technologies, LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) Army (Department of the Army)	$618,863,560	0.5%	Rank history: #1 in FY2021, #1 in FY2022, #85 in FY2024 and not on the FY2025 list; down 28 since FY2022.
30	Rapid Deployment Inc. Top agencies HHS (Department of Health and Human Services)	$588,780,106	0.5%	Rank history: #15 in FY2021, #6 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
31	Alion Science and Technology Corporation 4 awardees, including HII Mission Technologies Corp Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$569,319,447	0.5%	Rank history: #34 in FY2021, #59 in FY2022 and not on the FY2024–FY2025 lists; up 28 since FY2022.
32	AECOM 13 awardees, including JT4 LLC, AECOM Technical Services, Inc. and AECOM Services, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$539,922,210	0.5%	Rank history: #42 in FY2021, #49 in FY2022, #59 in FY2024 and not on the FY2025 list; up 17 since FY2022.
33	Tetra Tech, Inc. 24 awardees, including Ard, Inc., Management Systems International, Inc. and Tetra TECH ES, Inc. Top agencies USAID (US Agency for International Development) DOS (Department of State) EPA (Environmental Protection Agency)	$538,594,636	0.5%	Rank history: #38 in FY2021, #36 in FY2022, #30 in FY2024 and #43 in FY2025; up 3 since FY2022.
34	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)	$528,340,715	0.4%	Rank history: #23 in FY2021, #23 in FY2022, #31 in FY2024 and #33 in FY2025; down 11 since FY2022.
35	General Atomic Technologies Corporation 2 awardees, including General Atomics Aeronautical Systems, Inc. and General Atomics Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Army (Department of the Army)	$515,202,188	0.4%	Rank history: #30 in FY2021, #34 in FY2022, #38 in FY2024 and not on the FY2025 list; down 1 since FY2022.
36	Jacobs Engineering Group Inc. 18 awardees, including Amentum Technology, Inc., The Keyw Corporation and Ch2M Hill, Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) Army (Department of the Army)	$490,236,460	0.4%	Rank history: #25 in FY2021, #33 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
37	CGI Technologies and Solutions Inc. 2 awardees, including CGI Federal Inc. Top agencies DOS (Department of State) DOJ (Department of Justice) GSA (General Services Administration)	$473,587,480	0.4%	Rank history: #66 in FY2021, #43 in FY2022, #91 in FY2024 and not on the FY2025 list; up 6 since FY2022.
38	The GEO Group, Inc. 2 awardees, including B.i. Incorporated Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$447,667,028	0.4%	Rank history: #56 in FY2021, #45 in FY2022, #46 in FY2024 and #50 in FY2025; up 7 since FY2022.
39	Fluor Corporation 5 awardees, including Fluor Intercontinental, Inc., Fluor Federal Petroleum Operations, LLC and Fluor Enterprises, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DOE (Department of Energy)	$447,187,200	0.4%	Rank history: #35 in FY2021, #53 in FY2022, #35 in FY2024 and #31 in FY2025; up 14 since FY2022.
40	Ernst & Young LLP Top agencies Army (Department of the Army) HUD (Department of Housing and Urban Development) USAF (Department of the Air Force)	$445,884,899	0.4%	Rank history: #40 in FY2021, #51 in FY2022 and not on the FY2024–FY2025 lists; up 11 since FY2022.
41	The Interpublic Group of Companies Inc 5 awardees, including IPG Dxtra, Inc. and Mullenlowe US Inc. Top agencies HHS (Department of Health and Human Services) DHRA (Defense Human Resources Activity)	$437,171,402	0.4%	Rank history: #36 in FY2021, #47 in FY2022, #54 in FY2024 and not on the FY2025 list; up 6 since FY2022.
42	DAI Global LLC Top agencies USAID (US Agency for International Development)	$434,281,128	0.4%	Rank history: #62 in FY2021, #52 in FY2022, #39 in FY2024 and #62 in FY2025; up 10 since FY2022.
43	Sierra Nevada Company, LLC 4 awardees Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) DCSA (Defense Counterintelligence and Security Agency)	$430,222,500	0.4%	Rank history: #28 in FY2021, #46 in FY2022, #32 in FY2024 and #34 in FY2025; up 3 since FY2022.
44	Kpmg L.L.P. 2 awardees Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$425,481,791	0.4%	Rank history: #39 in FY2021, #44 in FY2022, #40 in FY2024 and #41 in FY2025; unchanged since FY2022.
45	ICF International, Inc. 4 awardees, including ICF Incorporated, L.L.C., ICF Macro Inc. and Creative Systems and Consulting L.L.C. Top agencies HHS (Department of Health and Human Services) USAID (US Agency for International Development) EPA (Environmental Protection Agency)	$413,827,742	0.3%	Rank history: #45 in FY2021, #48 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
46	Nelnet Servicing LLC 3 awardees, including Great Lakes Educational Loan Services, Inc. and Nelnet Diversified Solutions, LLC Top agencies ED (Department of Education)	$406,333,682	0.3%	Rank history: #43 in FY2021, #42 in FY2022, #43 in FY2024 and #39 in FY2025; down 4 since FY2022.
47	Serco North America (Holdings) Inc 3 awardees, including Serco Inc., Serco-Ips Corporation and Whitney Bradley & Brown, Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) DHS (Department of Homeland Security)	$398,675,884	0.3%	Rank history: #26 in FY2021, #24 in FY2022 and not on the FY2024–FY2025 lists; down 23 since FY2022.
48	The Boston Consulting Group Inc 2 awardees, including BCG Federal Corp. Top agencies DHA (Defense Health Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$364,404,197	0.3%	Rank history: #65 in FY2021, #88 in FY2022, #87 in FY2024 and not on the FY2025 list; up 40 since FY2022.
49	Torch Technologies Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$345,564,527	0.3%	Rank history: #44 in FY2021, #69 in FY2022, #52 in FY2024 and #42 in FY2025; up 20 since FY2022.
50	Research Triangle Institute 2 awardees Top agencies HHS (Department of Health and Human Services) USAID (US Agency for International Development) EPA (Environmental Protection Agency)	$330,719,422	0.3%	Rank history: #52 in FY2021, #58 in FY2022, #42 in FY2024 and #75 in FY2025; up 8 since FY2022.
51	PAE Government Services Inc. 10 awardees, including PAE Professional Services, LLC, Macfadden & Associates, Inc. and PAE Applied Technologies LLC Top agencies DOS (Department of State) DOJ (Department of Justice) USAID (US Agency for International Development)	$320,565,313	0.3%	Rank history: #32 in FY2021, #37 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
52	Fedex Corp 7 awardees, including Fedex Supply Chain Distribution System, Inc. and Federal Express Corporation Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$319,427,459	0.3%	Rank history: #59 in FY2021, #60 in FY2022, #50 in FY2024 and #38 in FY2025; up 8 since FY2022.
53	Noblis, Inc. 2 awardees, including Noblis MSD LLC Top agencies DOT (Department of Transportation) Navy (Department of the Navy) DHS (Department of Homeland Security)	$305,298,474	0.3%	Rank history: #77 in FY2021, #56 in FY2022, #63 in FY2024 and #66 in FY2025; up 3 since FY2022.
54	Credence Management Solutions Limited Liability Company Top agencies USAID (US Agency for International Development) USAF (Department of the Air Force) DOJ (Department of Justice)	$303,044,636	0.3%	Rank history: #76 in FY2021, #67 in FY2022, #33 in FY2024 and #60 in FY2025; up 13 since FY2022.
55	Michael Baker International, LLC 3 awardees, including Sallyport Global Holdings Inc. Top agencies USAF (Department of the Air Force) DOS (Department of State)	$299,210,728	0.3%	Rank history: #85 in FY2021, #57 in FY2022, #66 in FY2024 and not on the FY2025 list; up 2 since FY2022.
56	Missouri Higher Education Loan Authority Top agencies ED (Department of Education)	$296,856,719	0.2%	Rank history: not on the FY2021 list, #86 in FY2022, #73 in FY2024 and #59 in FY2025; up 30 since FY2022.
57	International Business Machines Corporation 5 awardees Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) DMEA (Defense Microelectronics Activity)	$294,387,141	0.2%	Rank history: #48 in FY2021, #50 in FY2022, #60 in FY2024 and #61 in FY2025; down 7 since FY2022.
58	Leonardo S.p.A. 8 awardees, including DRS Network & Imaging Systems LLC, Laurel Technologies Partnership and DRS Sustainment Systems, Inc. Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$293,268,137	0.2%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2024 and #37 in FY2025; up 54 since FY2022.
59	Serco Inc 3 awardees, including Serco-Ips Corporation Top agencies Navy (Department of the Navy) DOL (Department of Labor) PBGC (Pension Benefit Guaranty Corporation)	$274,940,679	0.2%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2024 and #22 in FY2025; new.
60	Riverside Research Institute 3 awardees, including Applied Research Solutions, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$268,179,910	0.2%	Rank history: #67 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
61	Vera Institute of Justice, Inc. Top agencies HHS (Department of Health and Human Services)	$267,864,324	0.2%	Rank history: #79 in FY2021, #78 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
62	Koniag, Inc. 11 awardees, including Tuknik Government Services LLC, Kadiak LLC and Pacarctic, LLC Top agencies DOS (Department of State) DISA (Defense Information Systems Agency) HHS (Department of Health and Human Services)	$267,006,848	0.2%	Rank history: #86 in FY2021, #74 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
63	Smartronix LLC 2 awardees, including Datastrong, LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice) USAF (Department of the Air Force)	$260,143,040	0.2%	Rank history: #87 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
64	ABT Global LLC 2 awardees Top agencies USAID (US Agency for International Development) HHS (Department of Health and Human Services) DOL (Department of Labor)	$258,856,785	0.2%	Rank history: #46 in FY2021, #55 in FY2022, #62 in FY2024 and #70 in FY2025; down 9 since FY2022.
65	Microsoft Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) DISA (Defense Information Systems Agency)	$257,174,604	0.2%	Rank history: #61 in FY2021, #63 in FY2022, #48 in FY2024 and #49 in FY2025; down 2 since FY2022.
66	Maximus Education LLC Top agencies ED (Department of Education)	$248,052,972	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, #64 in FY2024 and not on the FY2025 list; up 24 since FY2022.
67	Oasis Systems, LLC Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) CFTC (Commodity Futures Trading Commission)	$245,649,826	0.2%	Rank history: #57 in FY2021, #41 in FY2022, #89 in FY2024 and #67 in FY2025; down 26 since FY2022.
68	Range Generation Next LLC Top agencies USAF (Department of the Air Force)	$241,470,217	0.2%	Rank history: #71 in FY2021, #82 in FY2022, #80 in FY2024 and not on the FY2025 list; up 14 since FY2022.
69	DCS Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$232,345,655	0.2%	Rank history: #73 in FY2021, #76 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
70	Arctic Slope Regional Corporation 18 awardees, including Asrc Federal Professional Services, LLC, Netcentric Technology, LLC and Asrc Federal System Solutions LLC Top agencies DOT (Department of Transportation) USAF (Department of the Air Force) Commerce (Department of Commerce)	$231,880,130	0.2%	Rank history: #55 in FY2021, #61 in FY2022, #55 in FY2024 and #21 in FY2025; down 9 since FY2022.
71	Carahsoft Technology Corp Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) USAID (US Agency for International Development)	$222,009,467	0.2%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2024 and #81 in FY2025; up 65 since FY2022.
72	Odyssey Systems Consulting Group, Ltd. Top agencies USAF (Department of the Air Force)	$220,013,192	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #44 in FY2025; up 73 since FY2022.
73	Kearney & Company, P.C. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$216,195,992	0.2%	Rank history: #92 in FY2021, #87 in FY2022 and not on the FY2024–FY2025 lists; up 14 since FY2022.
74	Deployed Services, LLC Top agencies HHS (Department of Health and Human Services)	$213,423,508	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Applied Research Associates, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DTRA (Defense Threat Reduction Agency)	$210,599,936	0.2%	Rank history: not on the FY2021 list, #96 in FY2022, #96 in FY2024 and #98 in FY2025; up 21 since FY2022.
76	On Assignment, Inc. 7 awardees, including ECS Federal, LLC, Enterprise Resource Performance, LLC and Iron Vine Security LLC Top agencies DARPA (Defense Advanced Research Projects Agency) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$208,208,756	0.2%	Rank history: #88 in FY2021, #93 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
77	Magellan Health, Inc. 2 awardees, including Magellan Federal, Inc. and Magellan Healthcare Inc. Top agencies Army (Department of the Army) DODEA (Department of Defense Education Activity) Navy (Department of the Navy)	$203,965,347	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 79 since FY2022.
78	Ingenesis Inc. 2 awardees, including Kelly Services, Inc. Top agencies HHS (Department of Health and Human Services) EEOC (Equal Employment Opportunity Commission)	$203,284,918	0.2%	Rank history: #60 in FY2021, #71 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
79	Aaski Technology Inc. 5 awardees, including Mag DS Corp, Ausley Associates, Inc. and Remotely Piloted Solutions, L.L.C. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$201,244,633	0.2%	Rank history: #70 in FY2021, #54 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
80	Systems Planning and Analysis, Inc. Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) DTRA (Defense Threat Reduction Agency)	$198,762,650	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, #70 in FY2024 and #51 in FY2025; up 12 since FY2022.
81	LMI Consulting, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$191,135,813	0.2%	Rank history: not on the FY2021 list, #81 in FY2022, #51 in FY2024 and #48 in FY2025; unchanged since FY2022.
82	SRC Inc. 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$189,667,015	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and #72 in FY2025; up 43 since FY2022.
83	Mathematica Inc 2 awardees Top agencies HHS (Department of Health and Human Services) ED (Department of Education) SSA (Social Security Administration)	$188,318,116	0.2%	Rank history: #72 in FY2021, #77 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
84	H.i.g. Capital Management Inc. 3 awardees, including Empower AI, Inc. and Iron Bow Technologies, LLC Top agencies VA (Department of Veterans Affairs) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$182,411,869	0.2%	Rank history: #74 in FY2021, #72 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
85	Westat, Inc. Top agencies HHS (Department of Health and Human Services) ED (Department of Education) DOT (Department of Transportation)	$181,683,087	0.2%	Rank history: #75 in FY2021, #70 in FY2022, #69 in FY2024 and not on the FY2025 list; down 15 since FY2022.
86	Cherokee Nation 11 awardees, including Cherokee Nation Strategic Programs, L.L.C., Cherokee Federal Solutions, L.L.C. and Cherokee Nation Management & Consulting, L.l.c.. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Navy (Department of the Navy)	$178,463,519	0.1%	Rank history: #27 in FY2021, #80 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
87	National Exchange Carrier Association Inc. Through Universal Service Administrative Company Top agencies FCC (Federal Communications Commission)	$174,722,555	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 173 since FY2022.
88	Linquest Corporation 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$173,004,452	0.1%	Rank history: #78 in FY2021, #98 in FY2022, #95 in FY2024 and #76 in FY2025; up 10 since FY2022.
89	Advanced Technology Systems Inc. 3 awardees, including Salient Crgt, Inc. and Salient Federal-Sgis Inc. Top agencies USAF (Department of the Air Force) PBGC (Pension Benefit Guaranty Corporation) VA (Department of Veterans Affairs)	$162,927,692	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Sev1Tech, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$162,729,931	0.1%	Rank history: #100 in FY2021, not on the FY2022 list, not on the FY2024 list and #71 in FY2025; up 12 since FY2022.
91	Gryphon Technologies, Inc. 5 awardees, including Gryphon Technologies, L.C., Schafer Government Services, LLC and Gryphon Marine, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$161,954,812	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 46 since FY2022.
92	Axle Informatics, LLC Top agencies HHS (Department of Health and Human Services)	$158,589,243	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #93 in FY2025; up 27 since FY2022.
93	Clear Vantage Point Solutions II LLC Top agencies VA (Department of Veterans Affairs)	$154,948,480	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	Tecolote Research, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$154,907,840	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #78 in FY2025; up 17 since FY2022.
95	National Opinion Research Center Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor) USAID (US Agency for International Development)	$152,816,673	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 10 since FY2022.
96	The Johns Hopkins University 4 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC and Broadway Services, Incorporated Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) USSOCOM (United States Special Operations Command)	$152,305,664	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 24 since FY2022.
97	WPP PLC 2 awardees, including Wunderman Thompson LLC and Ogilvy Public Relations Worldwide LLC Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services)	$151,545,709	0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2024 and not on the FY2025 list; new.
98	National Collegiate Inventors & Innovators Alliance, Inc. Top agencies HHS (Department of Health and Human Services)	$149,577,440	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 163 since FY2022.
99	Grant Thornton International Ltd 2 awardees, including Grant Thornton LLP and Grant Thornton Public Sector LLC Top agencies DOS (Department of State) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$149,230,461	0.1%	Rank history: #84 in FY2021, #75 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
100	Omniplex World Services Corp 2 awardees, including Triple Canopy Inc. Top agencies DOS (Department of State) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$147,047,506	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

Rankings for the codes under PSC R

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 $119 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 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.

Quick answers