Top 100 Contractors in NAICS 5416: Management, Scientific, and Technical Consulting Services, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Deployed Resources LLC Top agencies DHS (Department of Homeland Security)	$1,080,428,674	4.4%	Rank history: #5 in FY2021, #2 in FY2022, #1 in FY2024 and #5 in FY2025; up 1 since FY2022.
2	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$1,023,196,582	4.1%	Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2024 and #1 in FY2025; down 1 since FY2022.
3	Deloitte LLP 4 awardees, including Deloitte Consulting LLP, Deloitte Financial Advisory Services LLP and Deloitte & Touche LLP Top agencies VA (Department of Veterans Affairs) Treasury (Department of the Treasury) HHS (Department of Health and Human Services)	$555,697,934	2.2%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2024 and #2 in FY2025; unchanged since FY2022.
4	Guidehouse Inc. 2 awardees Top agencies DHS (Department of Homeland Security) DOS (Department of State) VA (Department of Veterans Affairs)	$484,847,592	2.0%	Rank history: #7 in FY2021, #5 in FY2022, #4 in FY2024 and #6 in FY2025; up 1 since FY2022.
5	Booz Allen Hamilton Holding Corporation 2 awardees, including Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$412,674,490	1.7%	Rank history: #3 in FY2021, #4 in FY2022, #5 in FY2024 and #3 in FY2025; down 1 since FY2022.
6	General Dynamics Corporation 7 awardees, including General Dynamics Information Technology, Inc., Arma Global Corporation and General Dynamics One Source LLC Top agencies DOS (Department of State) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$384,327,520	1.6%	Rank history: #4 in FY2021, #19 in FY2022, #6 in FY2024 and #4 in FY2025; up 13 since FY2022.
7	Deloitte Consulting LLP 2 awardees Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$380,912,207	1.5%	Rank history: not on the FY2021 list, #7 in FY2022, #54 in FY2024 and not on the FY2025 list; unchanged since FY2022.
8	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)	$364,462,304	1.5%	Rank history: #10 in FY2021, #14 in FY2022, #13 in FY2024 and not on the FY2025 list; up 6 since FY2022.
9	ICF International, Inc. 3 awardees, including ICF Incorporated, L.L.C. and ICF Macro Inc. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) DOE (Department of Energy)	$301,766,763	1.2%	Rank history: #11 in FY2021, #8 in FY2022, #98 in FY2024 and not on the FY2025 list; down 1 since FY2022.
10	Lockheed Martin Corporation 8 awardees Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$284,027,431	1.1%	Rank history: #12 in FY2021, #10 in FY2022, #7 in FY2024 and #7 in FY2025; unchanged since FY2022.
11	PAE Government Services Inc. 5 awardees, including Macfadden & Associates, Inc., Metis Solutions, LLC and Centra Technology, Inc. Top agencies DOS (Department of State) DOJ (Department of Justice) USAID (US Agency for International Development)	$277,372,891	1.1%	Rank history: #8 in FY2021, #6 in FY2022, #50 in FY2024 and not on the FY2025 list; down 5 since FY2022.
12	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) DHA (Defense Health Agency)	$203,647,088	0.8%	Rank history: #23 in FY2021, #33 in FY2022 and not on the FY2024–FY2025 lists; up 21 since FY2022.
13	Accenture Inc. Through Accenture Federal Services LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) HHS (Department of Health and Human Services)	$194,876,994	0.8%	Rank history: not on the FY2021 list, #31 in FY2022 and not on the FY2024–FY2025 lists; up 18 since FY2022.
14	Ingenesis Inc. Through Kelly Services, Inc. Top agencies HHS (Department of Health and Human Services)	$191,537,077	0.8%	Rank history: #9 in FY2021, #9 in FY2022, #43 in FY2024 and not on the FY2025 list; down 5 since FY2022.
15	Tetra Tech, Inc. 23 awardees, including Management Systems International, Inc. and The Kaizen Company, LLC Top agencies EPA (Environmental Protection Agency) USAID (US Agency for International Development) NASA (National Aeronautics and Space Administration)	$189,715,314	0.8%	Rank history: #18 in FY2021, #13 in FY2022, #12 in FY2024 and #16 in FY2025; down 2 since FY2022.
16	National Exchange Carrier Association Inc. Through Universal Service Administrative Company Top agencies FCC (Federal Communications Commission)	$174,722,555	0.7%	Rank history: #24 in FY2021, #55 in FY2022 and not on the FY2024–FY2025 lists; up 39 since FY2022.
17	Research Triangle Institute 2 awardees Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) USAID (US Agency for International Development)	$161,659,953	0.7%	Rank history: #16 in FY2021, #15 in FY2022, #10 in FY2024 and #14 in FY2025; down 2 since FY2022.
18	Clear Vantage Point Solutions II LLC Top agencies VA (Department of Veterans Affairs)	$154,948,480	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
19	National Collegiate Inventors & Innovators Alliance, Inc. Top agencies HHS (Department of Health and Human Services)	$149,577,440	0.6%	Rank history: #86 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; up 38 since FY2022.
20	Mathematica Inc 2 awardees Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) ED (Department of Education)	$142,677,732	0.6%	Rank history: #22 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
21	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) HHS (Department of Health and Human Services)	$132,867,818	0.5%	Rank history: #15 in FY2021, #11 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
22	The Mitre Corporation 2 awardees Top agencies Treasury (Department of the Treasury) DOS (Department of State) OSD (Office of the Secretary of Defense)	$128,223,564	0.5%	Rank history: #19 in FY2021, #17 in FY2022, #16 in FY2024 and #32 in FY2025; down 5 since FY2022.
23	Fluor Corporation 2 awardees, including Fluor Enterprises, Inc. and Fluor Federal Services Inc. Top agencies DHS (Department of Homeland Security)	$127,420,840	0.5%	Rank history: #32 in FY2021, not on the FY2022 list, #19 in FY2024 and #12 in FY2025; returned.
24	System One Holdings, LLC Through Gap Solutions, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) OSD (Office of the Secretary of Defense)	$118,760,086	0.5%	Rank history: #44 in FY2021, #30 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
25	General Atomic Technologies Corporation 2 awardees, including General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force)	$112,526,492	0.5%	Rank history: #29 in FY2021, #16 in FY2022, #15 in FY2024 and not on the FY2025 list; down 9 since FY2022.
26	Kpmg L.L.P. 2 awardees Top agencies USAF (Department of the Air Force) DCSA (Defense Counterintelligence and Security Agency) Navy (Department of the Navy)	$108,691,829	0.4%	Rank history: #62 in FY2021, #23 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
27	360 Patriot Enterprises LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$103,880,608	0.4%	Rank history: not on the FY2021 list, #39 in FY2022, #24 in FY2024 and #19 in FY2025; up 12 since FY2022.
28	The Providencia Group LLC Top agencies HHS (Department of Health and Human Services)	$102,524,184	0.4%	Rank history: not on the FY2021 list, #36 in FY2022, #21 in FY2024 and not on the FY2025 list; up 8 since FY2022.
29	ABT Global LLC 2 awardees Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor) HUD (Department of Housing and Urban Development)	$102,397,246	0.4%	Rank history: #38 in FY2021, #26 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
30	Leidos Holdings, Inc. 10 awardees, including Leidos, Inc. and QTC Medical Services Inc. Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$102,120,706	0.4%	Rank history: #25 in FY2021, #24 in FY2022, #32 in FY2024 and #45 in FY2025; down 6 since FY2022.
31	Science Applications International Corporation 7 awardees, including Forfeiture Support Associates LLC Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation) USAF (Department of the Air Force)	$91,886,181	0.4%	Rank history: #14 in FY2021, #27 in FY2022, #73 in FY2024 and not on the FY2025 list; down 4 since FY2022.
32	K W Tunnell Company Inc. Through Tunnell Consulting Inc. Top agencies HHS (Department of Health and Human Services)	$91,086,500	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 259 since FY2022.
33	National Opinion Research Center Top agencies HHS (Department of Health and Human Services) USAID (US Agency for International Development) NSF (National Science Foundation)	$90,969,579	0.4%	Rank history: #27 in FY2021, #20 in FY2022, #66 in FY2024 and #84 in FY2025; down 13 since FY2022.
34	Midtown Personnel Inc. Top agencies USDA (Department of Agriculture) NLRB (National Labor Relations Board) Smithsonian (Smithsonian Institution)	$87,926,997	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
35	Acumen LLC Top agencies HHS (Department of Health and Human Services)	$87,704,067	0.4%	Rank history: #35 in FY2021, #28 in FY2022, #34 in FY2024 and #43 in FY2025; down 7 since FY2022.
36	Koniag, Inc. 6 awardees, including Kadiak LLC, Pacarctic, LLC and Tuknik Government Services LLC Top agencies DOS (Department of State) DOE (Department of Energy) HHS (Department of Health and Human Services)	$87,698,133	0.4%	Rank history: #51 in FY2021, #32 in FY2022, not on the FY2024 list and #50 in FY2025; down 4 since FY2022.
37	Teamstaff Inc. 4 awardees, including Danya International LLC, Irving Burton Associates, LLC and DLH Solutions Inc. Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$82,171,950	0.3%	Rank history: #30 in FY2021, #18 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
38	Aptive HTG LLC Top agencies VA (Department of Veterans Affairs)	$81,018,451	0.3%	Rank history: #50 in FY2021, #37 in FY2022, #45 in FY2024 and #64 in FY2025; down 1 since FY2022.
39	Eastern Research Group Inc. Top agencies EPA (Environmental Protection Agency) HHS (Department of Health and Human Services) DOL (Department of Labor)	$76,815,266	0.3%	Rank history: #61 in FY2021, #49 in FY2022, #20 in FY2024 and #41 in FY2025; up 10 since FY2022.
40	The Boeing Company 3 awardees Top agencies Navy (Department of the Navy) DOS (Department of State) USAF (Department of the Air Force)	$73,645,720	0.3%	Rank history: #82 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
41	Reli Group Inc Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) CPSC (Consumer Product Safety Commission)	$70,253,038	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	Your Recruiting Company, Inc. Top agencies Commerce (Department of Commerce) OPM (Office of Personnel Management) HHS (Department of Health and Human Services)	$68,754,792	0.3%	Rank history: #74 in FY2021, #63 in FY2022, #68 in FY2024 and not on the FY2025 list; up 21 since FY2022.
43	DAI Global LLC Top agencies USAID (US Agency for International Development)	$68,120,911	0.3%	Rank history: #91 in FY2021, not on the FY2022 list, #44 in FY2024 and #57 in FY2025; up 114 since FY2022.
44	Serco Inc 2 awardees Top agencies DOL (Department of Labor) Navy (Department of the Navy) DHS (Department of Homeland Security)	$67,358,728	0.3%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2024 and #11 in FY2025; new.
45	The Cadmus Group LLC 2 awardees Top agencies DHS (Department of Homeland Security) USAID (US Agency for International Development) EPA (Environmental Protection Agency)	$65,891,238	0.3%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2024 and not on the FY2025 list; up 108 since FY2022.
46	Aptive Resources LLC Top agencies OPM (Office of Personnel Management) VA (Department of Veterans Affairs) DOT (Department of Transportation)	$62,730,264	0.3%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and not on the FY2025 list; up 109 since FY2022.
47	Union Station Venture, Ltd. 2 awardees, including Jones Lang Lasalle Americas, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) SEC (Securities and Exchange Commission)	$61,665,458	0.2%	Rank history: #89 in FY2021, #79 in FY2022, #70 in FY2024 and not on the FY2025 list; up 32 since FY2022.
48	Mantech International Corporation 3 awardees, including Mantech Advanced Systems International, Inc., Mantech SRS Technologies, Inc. and Mantech Mgs, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOE (Department of Energy)	$60,307,704	0.2%	Rank history: #41 in FY2021, #35 in FY2022, #92 in FY2024 and not on the FY2025 list; down 13 since FY2022.
49	Creative It Solutions LLC Top agencies DOS (Department of State)	$60,007,767	0.2%	Rank history: not on the FY2021 list, #67 in FY2022, #33 in FY2024 and #44 in FY2025; up 18 since FY2022.
50	Management Analysis Technologies (Mat), Incorporated Top agencies Army (Department of the Army)	$58,217,857	0.2%	Rank history: #76 in FY2021, #72 in FY2022, #41 in FY2024 and #39 in FY2025; up 22 since FY2022.
51	Great Hill Solutions, LLC Top agencies DOS (Department of State) DHA (Defense Health Agency) USAID (US Agency for International Development)	$57,580,945	0.2%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2024 and #42 in FY2025; up 89 since FY2022.
52	Maximus Inc. 4 awardees, including Maximus Federal Services, Inc. and Q2 Administrators, LLC Top agencies HHS (Department of Health and Human Services)	$57,187,169	0.2%	Rank history: #55 in FY2021, #81 in FY2022 and not on the FY2024–FY2025 lists; up 29 since FY2022.
53	Westat, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) NSF (National Science Foundation)	$55,886,167	0.2%	Rank history: #40 in FY2021, #50 in FY2022, #31 in FY2024 and not on the FY2025 list; down 3 since FY2022.
54	American Institutes for Research In the Behavioral Sciences 3 awardees, including Growth Transitions Inc. Top agencies HHS (Department of Health and Human Services) ED (Department of Education) DOL (Department of Labor)	$55,239,284	0.2%	Rank history: #59 in FY2021, #44 in FY2022, #46 in FY2024 and not on the FY2025 list; down 10 since FY2022.
55	Summome Native Ventures LLC Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$52,893,430	0.2%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and not on the FY2025 list; new.
56	Bowhead Logistics Management, LLC Top agencies Army (Department of the Army)	$52,660,764	0.2%	Rank history: #31 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 57 since FY2022.
57	Project Enhancement Corporation Top agencies DOE (Department of Energy) DOL (Department of Labor)	$51,922,606	0.2%	Rank history: #84 in FY2021, #69 in FY2022, #64 in FY2024 and #54 in FY2025; up 12 since FY2022.
58	Logistics Management Institute 2 awardees, including The Tauri Group, Inc. Top agencies OSD (Office of the Secretary of Defense) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$50,458,284	0.2%	Rank history: #20 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; down 36 since FY2022.
59	Cherokee Nation 8 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 DOS (Department of State) DHS (Department of Homeland Security) Army (Department of the Army)	$49,892,167	0.2%	Rank history: #33 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
60	LMI Consulting, LLC Top agencies HHS (Department of Health and Human Services) OSD (Office of the Secretary of Defense) NASA (National Aeronautics and Space Administration)	$48,986,208	0.2%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and #37 in FY2025; up 192 since FY2022.
61	Livanta LLC Top agencies HHS (Department of Health and Human Services)	$48,618,180	0.2%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2024 and not on the FY2025 list; new.
62	Analytic Services Inc. 2 awardees, including Professional, Acquisition, and Technical Services, Inc. Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$48,252,544	0.2%	Rank history: #65 in FY2021, #56 in FY2022, #77 in FY2024 and #82 in FY2025; down 6 since FY2022.
63	Govstrive LLC Top agencies USDA (Department of Agriculture) Treasury (Department of the Treasury) Commerce (Department of Commerce)	$47,556,564	0.2%	Rank history: not on the FY2021 list, #62 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
64	C2 Alaska, LLC Top agencies SEC (Securities and Exchange Commission) SSA (Social Security Administration)	$46,384,427	0.2%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2024 and #63 in FY2025; up 117 since FY2022.
65	Serco North America (Holdings) Inc 2 awardees, including Serco Inc. and Whitney Bradley & Brown, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USAF (Department of the Air Force)	$46,128,124	0.2%	Rank history: #36 in FY2021, #29 in FY2022 and not on the FY2024–FY2025 lists; down 36 since FY2022.
66	Calibre Systems Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Navy (Department of the Navy)	$45,462,140	0.2%	Rank history: #54 in FY2021, #52 in FY2022, #76 in FY2024 and #81 in FY2025; down 14 since FY2022.
67	Resilience Action Partners Top agencies DHS (Department of Homeland Security)	$45,069,995	0.2%	Rank history: #47 in FY2021, #71 in FY2022, #71 in FY2024 and not on the FY2025 list; up 4 since FY2022.
68	Titan Alpha LLC Top agencies VA (Department of Veterans Affairs)	$44,611,226	0.2%	Rank history: #77 in FY2021, #54 in FY2022, #38 in FY2024 and not on the FY2025 list; down 14 since FY2022.
69	H.i.g. Capital Management Inc. Through Empower AI, Inc. Top agencies HHS (Department of Health and Human Services)	$44,333,530	0.2%	Rank history: #64 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
70	Atkins Nuclear Secured Holdings Corporation 3 awardees, including Atkins North America Inc. and Atkinsrealis USA Management LLC Top agencies Army (Department of the Army) DOT (Department of Transportation)	$43,455,422	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 199 since FY2022.
71	Keystone Peer Review Organization, LLC Through Ohio Kepro, LLC Top agencies HHS (Department of Health and Human Services)	$43,273,914	0.2%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2024 and not on the FY2025 list; new.
72	CACI International Inc. 5 awardees, including Caci, Inc. - Federal, Caci-Wgi, LLC and Caci Dynamic Systems, LLC Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy) DHS (Department of Homeland Security)	$43,159,231	0.2%	Rank history: #48 in FY2021, #45 in FY2022, #100 in FY2024 and #91 in FY2025; down 27 since FY2022.
73	Cathexis, LLC Top agencies VA (Department of Veterans Affairs) OSD (Office of the Secretary of Defense)	$42,563,861	0.2%	Rank history: not on the FY2021 list, #80 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
74	Mckinsey & Company, Inc. Through Mckinsey & Company, Inc. Washington D.c. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$42,144,001	0.2%	Rank history: #56 in FY2021, #38 in FY2022 and not on the FY2024–FY2025 lists; down 36 since FY2022.
75	Windsor Group LLC Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services) NSF (National Science Foundation)	$41,395,994	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Threat Tec, LLC Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force)	$40,971,765	0.2%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2024 and #67 in FY2025; up 88 since FY2022.
77	Dboc Joint Venture Top agencies Army (Department of the Army)	$40,934,936	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 189 since FY2022.
78	Noblis, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Treasury (Department of the Treasury)	$40,933,751	0.2%	Rank history: not on the FY2021 list, #65 in FY2022, #59 in FY2024 and #79 in FY2025; down 13 since FY2022.
79	Unwin Co Top agencies DOE (Department of Energy)	$40,191,082	0.2%	Rank history: #60 in FY2021, #58 in FY2022, #79 in FY2024 and not on the FY2025 list; down 21 since FY2022.
80	Potawatomi Business Development Corp 2 awardees, including Advancia Technologies, LLC and Advancia Aeronautics, LLC Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$40,159,601	0.2%	Rank history: #57 in FY2021, #70 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
81	Chickasaw Business Solutions, LLC Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$39,908,755	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 75 since FY2022.
82	On Assignment, Inc. 3 awardees, including Enterprise Resource Performance, LLC and ECS Federal, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$39,661,056	0.2%	Rank history: #26 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
83	Bering Straits Native Corporation 4 awardees, including Arcticom, LLC, Bering Global Solutions, LLC and Stampede Ventures, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) HHS (Department of Health and Human Services)	$39,174,088	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 238 since FY2022.
84	Tekpro Support Services, LLC Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) Army (Department of the Army)	$38,512,857	0.2%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2024 and #59 in FY2025; up 137 since FY2022.
85	National Academy of Sciences Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) DHA (Defense Health Agency)	$38,458,262	0.2%	Rank history: #68 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 19 since FY2022.
86	System High Corporation Top agencies DARPA (Defense Advanced Research Projects Agency) MDA (DOD Missile Defense Agency)	$38,173,637	0.2%	Rank history: not on the FY2021 list, #82 in FY2022, #60 in FY2024 and #48 in FY2025; down 4 since FY2022.
87	Goldbelt, Incorporated 4 awardees, including Goldbelt C6, LLC, Goldbelt Professional Services, LLC and Peregrine Technical Solutions, LLC Top agencies DOS (Department of State) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$38,113,942	0.2%	Rank history: #93 in FY2021, #99 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
88	Axle Informatics, LLC Top agencies HHS (Department of Health and Human Services)	$38,049,536	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #98 in FY2025; up 26 since FY2022.
89	CDM Smith Inc 2 awardees, including CDM Federal Programs Corporation Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$37,850,629	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Encompass LLC Top agencies USAID (US Agency for International Development) DOS (Department of State)	$37,636,557	0.2%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2024 and not on the FY2025 list; new.
91	Digital Mobilizations LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$37,295,167	0.2%	Rank history: not on the FY2021 list, #89 in FY2022, #47 in FY2024 and #94 in FY2025; down 2 since FY2022.
92	Applied Technologies Group, Inc. Top agencies Army (Department of the Army)	$37,163,586	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	PM Consulting Group LLC Top agencies USAID (US Agency for International Development) DHA (Defense Health Agency) Army (Department of the Army)	$37,122,588	0.2%	Rank history: #98 in FY2021, #87 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
94	MEC Energy Services LLC Top agencies DOS (Department of State)	$36,567,962	0.1%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2024 and not on the FY2025 list; up 48 since FY2022.
95	Trilogy Federal LLC Top agencies VA (Department of Veterans Affairs)	$36,042,265	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Health Services Holdings Inc. Through Health Services Advisory Group, Inc. Top agencies HHS (Department of Health and Human Services) OPM (Office of Personnel Management)	$35,760,898	0.1%	Rank history: #96 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; down 54 since FY2022.
97	Boston Government Services, LLC Top agencies DOE (Department of Energy)	$35,662,941	0.1%	Rank history: #81 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; down 36 since FY2022.
98	Wilson Perumal & Company, LLC Top agencies Army (Department of the Army)	$35,253,315	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 188 since FY2022.
99	Inverness Technologies Inc Top agencies Army (Department of the Army)	$35,087,938	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	Nakupuna Solutions, LLC Top agencies DOS (Department of State) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$34,924,318	0.1%	Rank history: #70 in FY2021, #91 in FY2022, #61 in FY2024 and #80 in FY2025; down 9 since FY2022.

Rankings for the codes under NAICS 5416

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 $24.7 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.

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