Top 100 Contractors in PSC R499: Other Professional Services, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Booz Allen Hamilton Holding Corporation 4 awardees, including Booz Allen Hamilton Inc. and Liberty It Solutions LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$1,083,706,901	4.2%	Rank history: #1 in FY2021, #1 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since FY2021.
2	The Boeing Company 8 awardees, including Boeing Sikorsky Aircraft Support, LLC, Jeppesen Foreflight, Inc. and Insitu, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$974,102,673	3.8%	Rank history: #2 in FY2021, #2 in FY2023, #2 in FY2024 and #1 in FY2025; unchanged since FY2021.
3	Maximus Inc. 6 awardees, including Maximus Federal Services, Inc., Maximus Federal Technology Solutions, LLC and Q2 Administrators, LLC Top agencies HHS (Department of Health and Human Services) WHS (DOD Washington Headquarters Service) VA (Department of Veterans Affairs)	$712,207,382	2.8%	Rank history: #4 in FY2021, #3 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
4	Savannah River Mission Completion, LLC Top agencies DOE (Department of Energy)	$642,161,403	2.5%	Rank history: not on the FY2021 list, #4 in FY2023, #5 in FY2024 and #3 in FY2025; new.
5	Deloitte LLP 6 awardees, including Deloitte Consulting LLP, Deloitte & Touche LLP and Deloitte Financial Advisory Services LLP Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DOS (Department of State)	$465,961,997	1.8%	Rank history: #3 in FY2021, #7 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
6	CACI International Inc. 10 awardees, including Caci Nss, LLC, Caci, Inc. - Federal and Caci-Wgi, LLC Top agencies DTRA (Defense Threat Reduction Agency) Army (Department of the Army) Navy (Department of the Navy)	$433,249,781	1.7%	Rank history: #8 in FY2021, #8 in FY2023, #10 in FY2024 and #9 in FY2025; up 2 since FY2021.
7	Science Applications International Corporation 6 awardees, including Forfeiture Support Associates LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) Army (Department of the Army)	$412,380,720	1.6%	Rank history: #11 in FY2021, #6 in FY2023, #9 in FY2024 and #8 in FY2025; up 4 since FY2021.
8	Mantech International Corporation 8 awardees, including Mantech Advanced Systems International, Inc., Mantech SRS Technologies, Inc. and Knowledge Consulting Group Inc. Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$313,229,794	1.2%	Rank history: #23 in FY2021, #50 in FY2023, #87 in FY2024 and not on the FY2025 list; up 15 since FY2021.
9	Serco North America (Holdings) Inc 4 awardees, including Serco Inc., Whitney Bradley & Brown, Inc. and Serco-Ips Corporation Top agencies HHS (Department of Health and Human Services) PBGC (Pension Benefit Guaranty Corporation) Navy (Department of the Navy)	$312,071,154	1.2%	Rank history: #13 in FY2021, #17 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
10	HP Enterprise Services LLC 7 awardees, including Peraton Technology Services Inc., Peraton Enterprise Solutions LLC and Peraton Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$307,498,457	1.2%	Rank history: #61 in FY2021, #9 in FY2023 and not on the FY2024–FY2025 lists; up 51 since FY2021.
11	General Dynamics Corporation 13 awardees, including General Dynamics Information Technology, Inc., General Dynamics Mission Systems, Inc. and Arma Global Corporation Top agencies HHS (Department of Health and Human Services) USSOCOM (United States Special Operations Command) VA (Department of Veterans Affairs)	$306,720,129	1.2%	Rank history: #6 in FY2021, #5 in FY2023, #3 in FY2024 and #5 in FY2025; down 5 since FY2021.
12	Deloitte Consulting LLP 2 awardees Top agencies HHS (Department of Health and Human Services) DHRA (Defense Human Resources Activity) DOS (Department of State)	$290,269,734	1.1%	Rank history: not on the FY2021 list, #13 in FY2023 and not on the FY2024–FY2025 lists; up 189 since FY2021.
13	Michael Baker International, LLC 2 awardees, including Sallyport Global Holdings Inc. Top agencies USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$289,609,013	1.1%	Rank history: #19 in FY2021, #14 in FY2023, #21 in FY2024 and not on the FY2025 list; up 6 since FY2021.
14	DAI Global LLC Top agencies USAID (US Agency for International Development)	$230,582,907	0.9%	Rank history: #24 in FY2021, #16 in FY2023, #14 in FY2024 and #32 in FY2025; up 10 since FY2021.
15	Ingenesis Inc. Through Kelly Services, Inc. Top agencies HHS (Department of Health and Human Services)	$223,554,701	0.9%	Rank history: #35 in FY2021, #21 in FY2023, #59 in FY2024 and not on the FY2025 list; up 20 since FY2021.
16	International Business Machines Corporation 4 awardees Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$211,804,908	0.8%	Rank history: #30 in FY2021, #30 in FY2023, #30 in FY2024 and #26 in FY2025; up 14 since FY2021.
17	Parsons Corporation 4 awardees, including Parsons Government Services Inc., Polaris Alpha, LLC and Ptsi Managed Services Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$202,709,505	0.8%	Rank history: #17 in FY2021, #12 in FY2023, #15 in FY2024 and #22 in FY2025; unchanged since FY2021.
18	Huntington Ingalls Industries, Inc. 3 awardees, including HII Mission Technologies Corp and Fulcrum It Services, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$201,284,066	0.8%	Rank history: #89 in FY2021, #10 in FY2023, #8 in FY2024 and #7 in FY2025; up 71 since FY2021.
19	H.i.g. Capital Management Inc. 4 awardees, including Iron Bow Technologies, LLC and Empower AI, Inc. Top agencies VA (Department of Veterans Affairs) OSD (Office of the Secretary of Defense) FCC (Federal Communications Commission)	$199,346,479	0.8%	Rank history: #22 in FY2021, #44 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
20	Guidehouse Inc. 4 awardees, including Guidehouse Digital LLC and Dovel Technologies LLC Top agencies SBA (Small Business Administration) HHS (Department of Health and Human Services) DOS (Department of State)	$198,509,776	0.8%	Rank history: #9 in FY2021, #15 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2021.
21	Accenture Inc. Through Accenture Federal Services LLC Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) Navy (Department of the Navy)	$191,542,097	0.7%	Rank history: not on the FY2021 list, #22 in FY2023 and not on the FY2024–FY2025 lists; new.
22	ICF International, Inc. 5 awardees, including ICF Incorporated, L.L.C., ICF Macro Inc. and Incentive Technology Group LLC Top agencies HHS (Department of Health and Human Services) USAID (US Agency for International Development) EPA (Environmental Protection Agency)	$177,664,884	0.7%	Rank history: #21 in FY2021, #18 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
23	Jacobs Engineering Group Inc. 13 awardees, including Amentum Technology, Inc., The Keyw Corporation and Ch2M Hill International Services, Inc. Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) GSA (General Services Administration)	$177,354,122	0.7%	Rank history: #15 in FY2021, #33 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2021.
24	Amentum Services, Inc. 2 awardees, including URS Federal Services International, Inc. Top agencies Navy (Department of the Navy) Treasury (Department of the Treasury) NASA (National Aeronautics and Space Administration)	$168,760,215	0.7%	Rank history: #18 in FY2021, #28 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2021.
25	Mathematica Inc 2 awardees Top agencies HHS (Department of Health and Human Services) ED (Department of Education) DOL (Department of Labor)	$164,166,110	0.6%	Rank history: #25 in FY2021, #34 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
26	LMI Consulting, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$162,791,311	0.6%	Rank history: not on the FY2021 list, #25 in FY2023, #20 in FY2024 and #21 in FY2025; new.
27	Tetra Tech, Inc. 16 awardees, including Ard, Inc., The Kaizen Company, LLC and Management Systems International, Inc. Top agencies USAID (US Agency for International Development) USAF (Department of the Air Force) DOE (Department of Energy)	$156,945,868	0.6%	Rank history: #39 in FY2021, #36 in FY2023, #36 in FY2024 and #45 in FY2025; up 12 since FY2021.
28	Research Triangle Institute Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) EPA (Environmental Protection Agency)	$152,923,596	0.6%	Rank history: #20 in FY2021, #26 in FY2023, #18 in FY2024 and #38 in FY2025; down 8 since FY2021.
29	UnitedHealth Group Incorporated 5 awardees, including The Lewin Group, Inc., Optumhealth Care Solutions, LLC and Optumserve Technology Services, Inc. Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$141,077,730	0.6%	Rank history: #38 in FY2021, #52 in FY2023, #46 in FY2024 and not on the FY2025 list; up 9 since FY2021.
30	Lockheed Martin Corporation 6 awardees, including Lockheed Martin Services, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$140,491,145	0.5%	Rank history: #46 in FY2021, #47 in FY2023, #38 in FY2024 and #42 in FY2025; up 16 since FY2021.
31	Kpmg L.L.P. 2 awardees Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force) DCSA (Defense Counterintelligence and Security Agency)	$140,393,837	0.5%	Rank history: #48 in FY2021, #32 in FY2023 and not on the FY2024–FY2025 lists; up 17 since FY2021.
32	The GEO Group, Inc. Top agencies DOJ (Department of Justice)	$135,855,426	0.5%	Rank history: #34 in FY2021, #38 in FY2023, #49 in FY2024 and #41 in FY2025; up 2 since FY2021.
33	Kbr, Inc. 7 awardees, including KBR Wyle Services, LLC and Kord Technologies, LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) Army (Department of the Army)	$133,011,786	0.5%	Rank history: #29 in FY2021, #37 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
34	ACE Info Solutions LLC 2 awardees, including Dovel Technologies LLC and Guidehouse Digital LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$131,721,340	0.5%	Rank history: #26 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2021.
35	Cognosante Holdings, LLC 3 awardees, including Cognosante MVH LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$128,722,726	0.5%	Rank history: #33 in FY2021, #45 in FY2023, #48 in FY2024 and not on the FY2025 list; down 2 since FY2021.
36	Governmentcio LLC 3 awardees, including Salient Crgt, Inc., Govcio, LLC and Salient Federal-Sgis Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) PBGC (Pension Benefit Guaranty Corporation)	$127,114,489	0.5%	Rank history: not on the FY2021 list, #62 in FY2023, #60 in FY2024 and #39 in FY2025; up 121 since FY2021.
37	Ernst & Young LLP 4 awardees Top agencies Army (Department of the Army) DOJ (Department of Justice) OSD (Office of the Secretary of Defense)	$122,480,250	0.5%	Rank history: #44 in FY2021, #23 in FY2023, #23 in FY2024 and #25 in FY2025; up 7 since FY2021.
38	Westat, Inc. Top agencies ED (Department of Education) HHS (Department of Health and Human Services) OPM (Office of Personnel Management)	$112,167,249	0.4%	Rank history: #51 in FY2021, #49 in FY2023, #26 in FY2024 and not on the FY2025 list; up 13 since FY2021.
39	The Boston Consulting Group Inc 2 awardees, including BCG Federal Corp. Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) Army (Department of the Army)	$108,620,003	0.4%	Rank history: #28 in FY2021, #11 in FY2023, #27 in FY2024 and not on the FY2025 list; down 11 since FY2021.
40	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$107,709,364	0.4%	Rank history: #41 in FY2021, #27 in FY2023, #24 in FY2024 and #49 in FY2025; up 1 since FY2021.
41	Palladium International LLC Top agencies USAID (US Agency for International Development)	$105,715,807	0.4%	Rank history: #49 in FY2021, #59 in FY2023, #90 in FY2024 and not on the FY2025 list; up 8 since FY2021.
42	Heritage Health Solutions, Inc. Top agencies DOJ (Department of Justice)	$105,145,403	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
43	RTX Corporation 13 awardees, including Raytheon Company, Nightwing Technologies, LLC and Goodrich Corporation Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$103,849,268	0.4%	Rank history: #12 in FY2021, #31 in FY2023 and not on the FY2024–FY2025 lists; down 31 since FY2021.
44	National Opinion Research Center Top agencies HHS (Department of Health and Human Services) EEOC (Equal Employment Opportunity Commission) USDA (Department of Agriculture)	$101,049,133	0.4%	Rank history: #42 in FY2021, #55 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
45	Alion Science and Technology Corporation Through HII Mission Technologies Corp Top agencies USAF (Department of the Air Force)	$101,008,819	0.4%	Rank history: #16 in FY2021, #19 in FY2023 and not on the FY2024–FY2025 lists; down 29 since FY2021.
46	Axle Informatics, LLC Top agencies HHS (Department of Health and Human Services)	$97,293,368	0.4%	Rank history: #64 in FY2021, #39 in FY2023, #47 in FY2024 and #35 in FY2025; up 18 since FY2021.
47	Signature Choice, LLC Top agencies VA (Department of Veterans Affairs)	$96,024,565	0.4%	Rank history: #31 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2021.
48	Sapient Corporation 3 awardees, including Plowshare Group, Inc., Sapient Government Services, Inc. and Onpoint Consulting, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$95,035,426	0.4%	Rank history: #43 in FY2021, #43 in FY2023, #58 in FY2024 and #82 in FY2025; down 5 since FY2021.
49	American Institutes for Research In the Behavioral Sciences 3 awardees, including Impaq International, LLC and Growth Transitions Inc. Top agencies HHS (Department of Health and Human Services) ED (Department of Education) DOL (Department of Labor)	$91,930,258	0.4%	Rank history: #57 in FY2021, #48 in FY2023, #53 in FY2024 and not on the FY2025 list; up 8 since FY2021.
50	Salient Crgt, Inc. Top agencies USAF (Department of the Air Force) PBGC (Pension Benefit Guaranty Corporation)	$91,694,157	0.4%	Rank history: not on the FY2021 list, not on the FY2023 list, #70 in FY2024 and #16 in FY2025; new.
51	ABT Global LLC 2 awardees Top agencies HHS (Department of Health and Human Services) USAID (US Agency for International Development) ED (Department of Education)	$90,680,852	0.4%	Rank history: #47 in FY2021, #80 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
52	The Mitre Corporation Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) Treasury (Department of the Treasury)	$88,412,611	0.3%	Rank history: #77 in FY2021, #46 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2021.
53	Logistics Management Institute 2 awardees, including The Tauri Group, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$86,988,574	0.3%	Rank history: #14 in FY2021 and not on the FY2023–FY2025 lists; down 39 since FY2021.
54	Leidos Holdings, Inc. 12 awardees, including Leidos, Inc. and 1901 Group, LLC Top agencies Army (Department of the Army) OSD (Office of the Secretary of Defense) USSOCOM (United States Special Operations Command)	$86,160,998	0.3%	Rank history: #62 in FY2021, #20 in FY2023, #13 in FY2024 and #11 in FY2025; up 8 since FY2021.
55	Koniag, Inc. 5 awardees, including Tuknik Government Services LLC, Koniag Technology Solutions Inc. and Pacarctic, LLC Top agencies DISA (Defense Information Systems Agency) SBA (Small Business Administration) DOJ (Department of Justice)	$81,376,065	0.3%	Rank history: #79 in FY2021, #53 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2021.
56	Acumen LLC Top agencies HHS (Department of Health and Human Services)	$77,498,338	0.3%	Rank history: #50 in FY2021, #54 in FY2023, #57 in FY2024 and #55 in FY2025; down 6 since FY2021.
57	General Dynamics Information Technology, Inc. Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor) USSOCOM (United States Special Operations Command)	$76,362,303	0.3%	Rank history: #69 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
58	PAE Government Services Inc. 6 awardees, including PAE Professional Services, LLC, PAE National Security Solutions LLC and Metis Solutions, LLC Top agencies DHS (Department of Homeland Security) DTRA (Defense Threat Reduction Agency) DOJ (Department of Justice)	$76,190,009	0.3%	Rank history: #27 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
59	Accenture Federal Services LLC 4 awardees, including ASM Research, LLC and Avanade Inc. Top agencies Commerce (Department of Commerce) Army (Department of the Army) VA (Department of Veterans Affairs)	$76,089,277	0.3%	Rank history: #5 in FY2021 and not on the FY2023–FY2025 lists; down 54 since FY2021.
60	Quality Health Strategies Inc. Through Qlarant Integrity Solutions LLC Top agencies HHS (Department of Health and Human Services)	$72,381,060	0.3%	Rank history: #58 in FY2021, #56 in FY2023, #81 in FY2024 and not on the FY2025 list; down 2 since FY2021.
61	BAE Systems PLC 5 awardees, including BAE Systems Technology Solutions & Services Inc., BAE Systems Australia Limited and BAE Systems Information and Electronic Systems Integration Inc. Top agencies DOJ (Department of Justice) Army (Department of the Army) USAF (Department of the Air Force)	$70,409,612	0.3%	Rank history: #45 in FY2021, #70 in FY2023, #100 in FY2024 and not on the FY2025 list; down 16 since FY2021.
62	Medical Science & Computing, LLC Top agencies HHS (Department of Health and Human Services)	$64,369,237	0.3%	Rank history: #54 in FY2021, #72 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2021.
63	Calibre Systems Inc. Top agencies Army (Department of the Army) DHRA (Defense Human Resources Activity) USAF (Department of the Air Force)	$63,380,357	0.2%	Rank history: #60 in FY2021, #65 in FY2023, #73 in FY2024 and #72 in FY2025; down 3 since FY2021.
64	Cherokee Nation 9 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 DHA (Defense Health Agency) DTRA (Defense Threat Reduction Agency) HHS (Department of Health and Human Services)	$62,585,281	0.2%	Rank history: #63 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
65	Grant Thornton International Ltd 2 awardees, including Grant Thornton LLP and Grant Thornton Public Sector LLC Top agencies USAF (Department of the Air Force) PBGC (Pension Benefit Guaranty Corporation) ED (Department of Education)	$62,537,162	0.2%	Rank history: #70 in FY2021, #60 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
66	RP Professional Services, LLC Top agencies SBA (Small Business Administration) USDA (Department of Agriculture) NSF (National Science Foundation)	$61,768,289	0.2%	Rank history: not on the FY2021 list, #73 in FY2023 and not on the FY2024–FY2025 lists; new.
67	Inverness Technologies Inc. Top agencies Army (Department of the Army)	$60,280,452	0.2%	Rank history: #74 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
68	Oak Ridge Associated Universities, Incorporated Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) USDA (Department of Agriculture)	$57,491,815	0.2%	Rank history: #75 in FY2021, #77 in FY2023, #86 in FY2024 and #84 in FY2025; up 7 since FY2021.
69	The Chenega Corporation 10 awardees, including Chenega Healthcare Services LLC, Chenega Global Protection, LLC and Chenega Reliable Services LLC Top agencies NASA (National Aeronautics and Space Administration) SEC (Securities and Exchange Commission) DHA (Defense Health Agency)	$57,297,281	0.2%	Rank history: #67 in FY2021, #58 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
70	Ciqima Federal Services LLC Top agencies DHA (Defense Health Agency)	$52,660,699	0.2%	Rank history: #82 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
71	Apogee Engineering, LLC Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force) Army (Department of the Army)	$52,504,731	0.2%	Rank history: #56 in FY2021, not on the FY2023 list, #77 in FY2024 and #47 in FY2025; down 15 since FY2021.
72	Halvik LLC Top agencies NASA (National Aeronautics and Space Administration) USSOCOM (United States Special Operations Command) Commerce (Department of Commerce)	$51,352,807	0.2%	Rank history: not on the FY2021 list, #75 in FY2023, #95 in FY2024 and #51 in FY2025; up 172 since FY2021.
73	National Exchange Carrier Association Inc. Through Universal Service Administrative Company Top agencies FCC (Federal Communications Commission)	$50,050,000	0.2%	Rank history: #36 in FY2021, #29 in FY2023 and not on the FY2024–FY2025 lists; down 37 since FY2021.
74	Nana Regional Corporation Inc 13 awardees, including Rivertech LLC, Qivliq Commercial Group LLC and Tundra Federal LLC Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce) OPM (Office of Personnel Management)	$49,683,893	0.2%	Rank history: #66 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
75	Innovative Technology Solutions JV, LLC Top agencies USAF (Department of the Air Force)	$49,167,898	0.2%	Rank history: #87 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
76	L3Harris Technologies, Inc. 8 awardees, including L3Harris Technologies Integrated Systems L.P. and L3 Technologies, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) DOJ (Department of Justice)	$44,886,284	0.2%	Rank history: #73 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
77	Goldbelt, Incorporated 8 awardees, including Goldbelt C6, LLC, Goldbelt Professional Services, LLC and Goldbelt Glacier Health Services, LLC Top agencies HHS (Department of Health and Human Services) DOS (Department of State) USAF (Department of the Air Force)	$44,847,822	0.2%	Rank history: #91 in FY2021, #84 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2021.
78	WWC Global LLC Top agencies USSOCOM (United States Special Operations Command) OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$44,702,553	0.2%	Rank history: #84 in FY2021, #93 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
79	Chickasaw Health Consulting, LLC Top agencies HHS (Department of Health and Human Services) DOT (Department of Transportation)	$44,687,398	0.2%	Rank history: #99 in FY2021 and not on the FY2023–FY2025 lists; up 20 since FY2021.
80	Tecolote Research, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) NASA (National Aeronautics and Space Administration)	$43,887,878	0.2%	Rank history: #88 in FY2021, not on the FY2023–FY2024 lists and #48 in FY2025; up 8 since FY2021.
81	Gartner, Inc. 3 awardees, including Personnel Decisions Research Institutes, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$43,072,170	0.2%	Rank history: #93 in FY2021, #68 in FY2023, #78 in FY2024 and not on the FY2025 list; up 12 since FY2021.
82	Boston Government Services, LLC Top agencies DOE (Department of Energy)	$42,983,147	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 24 since FY2021.
83	Systems Planning and Analysis, Inc. Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$41,526,804	0.2%	Rank history: #94 in FY2021, #86 in FY2023, not on the FY2024 list and #70 in FY2025; up 11 since FY2021.
84	Ba-Zai JV, LLC Top agencies DOJ (Department of Justice)	$41,444,215	0.2%	Rank history: #59 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
85	American Institute In Taiwan Top agencies DOS (Department of State) DHS (Department of Homeland Security)	$40,619,297	0.2%	Rank history: #85 in FY2021, #95 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
86	Planned Systems International Inc. 3 awardees, including Advanced Technologies and Laboratories (Atl) International, Inc. and Pro-Sphere Tek, Inc. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Army (Department of the Army)	$39,499,909	0.2%	Rank history: #98 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
87	Teamstaff Inc. 3 awardees, including Danya International LLC and Social & Scientific Systems, Inc. Top agencies HHS (Department of Health and Human Services)	$39,430,766	0.2%	Rank history: not on the FY2021 list, #97 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2021.
88	Tanaq Support Services, LLC Top agencies HHS (Department of Health and Human Services)	$39,191,828	0.2%	Rank history: #53 in FY2021 and not on the FY2023–FY2025 lists; down 35 since FY2021.
89	Chenega Enterprise Systems & Solutions, LLC Top agencies HHS (Department of Health and Human Services) DOE (Department of Energy) USAID (US Agency for International Development)	$38,969,414	0.2%	Rank history: not on the FY2021 list, #90 in FY2023, #79 in FY2024 and #85 in FY2025; up 101 since FY2021.
90	Analytic Services Inc. Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army)	$38,882,098	0.2%	Rank history: not on the FY2021 list, #79 in FY2023, #71 in FY2024 and #61 in FY2025; up 17 since FY2021.
91	TMF Health Quality Institute 2 awardees, including C2C Innovative Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$38,828,378	0.2%	Rank history: #68 in FY2021 and not on the FY2023–FY2025 lists; down 23 since FY2021.
92	Hendall Inc. Top agencies HHS (Department of Health and Human Services)	$38,157,772	0.1%	Rank history: not on the FY2021 list, #87 in FY2023, #99 in FY2024 and not on the FY2025 list; up 17 since FY2021.
93	Triple Canopy Inc. 2 awardees, including Centerra Group, LLC Top agencies DOE (Department of Energy) Navy (Department of the Navy) DOJ (Department of Justice)	$37,891,270	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 250 since FY2021.
94	Social Solutions International, Inc. Top agencies USAID (US Agency for International Development) DOJ (Department of Justice)	$37,707,730	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 17 since FY2021.
95	Mele Associates Inc. Top agencies DOE (Department of Energy)	$37,465,213	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #66 in FY2025; up 60 since FY2021.
96	Brillient Corporation Top agencies HHS (Department of Health and Human Services) SBA (Small Business Administration)	$37,373,999	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 23 since FY2021.
97	Delta Solutions & Strategies LLC Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Army (Department of the Army)	$36,425,079	0.1%	Rank history: not on the FY2021 list, #57 in FY2023 and not on the FY2024–FY2025 lists; up 205 since FY2021.
98	Vion Corporation Top agencies Commerce (Department of Commerce) DOI (Department of the Interior)	$36,335,916	0.1%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
99	Broadleaf, Inc. Top agencies Army (Department of the Army) DARPA (Defense Advanced Research Projects Agency) GSA (General Services Administration)	$35,945,539	0.1%	Rank history: #100 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
100	Mckinsey & Company, Inc. Through Mckinsey & Company, Inc. Washington D.c. Top agencies Army (Department of the Army) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$35,224,161	0.1%	Rank history: #80 in FY2021 and not on the FY2023–FY2025 lists; down 20 since FY2021.

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 $25.6 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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