Top 100 Contractors in NAICS 541690: Other Scientific and Technical Consulting Services, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Ingenesis Inc. Through Kelly Services, Inc. Top agencies HHS (Department of Health and Human Services)	$217,033,213	9.4%	Rank history: #1 in FY2021, #1 in FY2023, #4 in FY2024 and not on the FY2025 list; unchanged since FY2021.
2	Lockheed Martin Corporation 4 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$149,071,497	6.5%	Rank history: #2 in FY2021, #2 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since FY2021.
3	Palladium International LLC Top agencies USAID (US Agency for International Development)	$61,505,478	2.7%	Rank history: #11 in FY2021, #22 in FY2023, #17 in FY2024 and #88 in FY2025; up 8 since FY2021.
4	Mantech International Corporation 3 awardees, including Mantech Advanced Systems International, Inc. and Mantech SRS Technologies, Inc. Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency) MDA (DOD Missile Defense Agency)	$50,158,952	2.2%	Rank history: #4 in FY2021, #8 in FY2023, #13 in FY2024 and #7 in FY2025; unchanged since FY2021.
5	Leidos Holdings, Inc. 6 awardees, including Leidos, Inc. Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$48,410,912	2.1%	Rank history: #5 in FY2021, #3 in FY2023, #10 in FY2024 and not on the FY2025 list; unchanged since FY2021.
6	Controlant HF. Top agencies Army (Department of the Army)	$38,593,225	1.7%	Rank history: #28 in FY2021 and not on the FY2023–FY2025 lists; up 22 since FY2021.
7	Unwin Co Top agencies DOE (Department of Energy)	$38,009,051	1.7%	Rank history: #10 in FY2021, #6 in FY2023, #9 in FY2024 and #13 in FY2025; up 3 since FY2021.
8	RTX Corporation 5 awardees, including Raytheon Company and Noresco, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$36,892,133	1.6%	Rank history: #12 in FY2021, #16 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
9	System High Corporation Top agencies DARPA (Defense Advanced Research Projects Agency) MDA (DOD Missile Defense Agency)	$36,174,246	1.6%	Rank history: not on the FY2021 list, #7 in FY2023, #6 in FY2024 and #5 in FY2025; new.
10	Culmen International, LLC Top agencies DOS (Department of State)	$34,578,838	1.5%	Rank history: not on the FY2021 list, #56 in FY2023 and not on the FY2024–FY2025 lists; new.
11	RMC 2021 LLC Top agencies Navy (Department of the Navy)	$32,465,790	1.4%	Rank history: #39 in FY2021, #15 in FY2023, #28 in FY2024 and #19 in FY2025; up 28 since FY2021.
12	Tanaq Support Services, LLC Top agencies HHS (Department of Health and Human Services)	$30,839,637	1.3%	Rank history: #91 in FY2021 and not on the FY2023–FY2025 lists; up 79 since FY2021.
13	Axle Informatics, LLC Top agencies HHS (Department of Health and Human Services)	$28,860,669	1.3%	Rank history: #57 in FY2021, #9 in FY2023, #11 in FY2024 and #12 in FY2025; up 44 since FY2021.
14	PAE Government Services Inc. 2 awardees Top agencies DOS (Department of State)	$28,590,599	1.2%	Rank history: #13 in FY2021, #10 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
15	General Dynamics Corporation 3 awardees, including General Dynamics Information Technology, Inc. and General Dynamics One Source LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Navy (Department of the Navy)	$28,282,283	1.2%	Rank history: #6 in FY2021, #12 in FY2023, #3 in FY2024 and #3 in FY2025; down 9 since FY2021.
16	Michael Stapleton Associates, Ltd. Top agencies DOS (Department of State)	$26,459,608	1.1%	Rank history: #7 in FY2021, #14 in FY2023, #12 in FY2024 and #10 in FY2025; down 9 since FY2021.
17	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$25,836,889	1.1%	Rank history: #84 in FY2021, #5 in FY2023, #5 in FY2024 and #9 in FY2025; up 67 since FY2021.
18	National Academy of Sciences Top agencies HHS (Department of Health and Human Services) DOE (Department of Energy) DOS (Department of State)	$25,127,851	1.1%	Rank history: #9 in FY2021, #11 in FY2023, #19 in FY2024 and #59 in FY2025; down 9 since FY2021.
19	Yale New Haven Health Services Corporation Top agencies HHS (Department of Health and Human Services)	$21,656,626	0.9%	Rank history: #15 in FY2021, #23 in FY2023, #30 in FY2024 and #30 in FY2025; down 4 since FY2021.
20	Janus Research Group, LLC Top agencies Army (Department of the Army)	$20,205,601	0.9%	Rank history: not on the FY2021 list, #18 in FY2023, #21 in FY2024 and #22 in FY2025; up 382 since FY2021.
21	Acumen LLC Top agencies HHS (Department of Health and Human Services)	$19,598,364	0.9%	Rank history: #25 in FY2021, #27 in FY2023, #35 in FY2024 and #58 in FY2025; up 4 since FY2021.
22	Essex Management LLC Top agencies HHS (Department of Health and Human Services)	$19,105,952	0.8%	Rank history: #22 in FY2021, #21 in FY2023, #27 in FY2024 and #23 in FY2025; unchanged since FY2021.
23	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC and Dependable Global Solutions, LLC Top agencies NASA (National Aeronautics and Space Administration) DOE (Department of Energy)	$18,992,130	0.8%	Rank history: #19 in FY2021, #13 in FY2023, #94 in FY2024 and not on the FY2025 list; down 4 since FY2021.
24	Mathematica Inc 2 awardees Top agencies HHS (Department of Health and Human Services) MCC (Millennium Challenge Corporation)	$17,994,829	0.8%	Rank history: #16 in FY2021, #24 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2021.
25	Ameresco Inc. Through Ameresco Select, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$17,806,807	0.8%	Rank history: #14 in FY2021, #28 in FY2023, #31 in FY2024 and #20 in FY2025; down 11 since FY2021.
26	JP Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$17,287,843	0.8%	Rank history: #23 in FY2021, #17 in FY2023, #16 in FY2024 and not on the FY2025 list; down 3 since FY2021.
27	ABT Global LLC 2 awardees Top agencies HHS (Department of Health and Human Services) USAID (US Agency for International Development)	$16,379,892	0.7%	Rank history: #41 in FY2021, #55 in FY2023, #39 in FY2024 and not on the FY2025 list; up 14 since FY2021.
28	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$16,309,594	0.7%	Rank history: #3 in FY2021, #19 in FY2023, #23 in FY2024 and #16 in FY2025; down 25 since FY2021.
29	Cherokee Nation 2 awardees, including Cherokee Nation Strategic Programs, L.L.C. and Cherokee Federal Solutions, L.L.C. Top agencies DTRA (Defense Threat Reduction Agency) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$15,769,386	0.7%	Rank history: #42 in FY2021 and not on the FY2023–FY2025 lists; up 13 since FY2021.
30	Noblis, Inc. Top agencies Army (Department of the Army)	$15,733,453	0.7%	Rank history: #59 in FY2021, #41 in FY2023, #36 in FY2024 and #38 in FY2025; up 29 since FY2021.
31	Battelle Memorial Institute 3 awardees Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) Army (Department of the Army)	$15,497,387	0.7%	Rank history: #33 in FY2021, #40 in FY2023, #32 in FY2024 and #26 in FY2025; up 2 since FY2021.
32	The Tatitlek Corporation Through Tatitlek Technologies, LLC Top agencies DOS (Department of State)	$15,412,135	0.7%	Rank history: #27 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
33	Ids International Government Services LLC Through Ids International, LLC Top agencies DOS (Department of State)	$15,165,718	0.7%	Rank history: not on the FY2021 list, #50 in FY2023 and not on the FY2024–FY2025 lists; new.
34	Dboc Joint Venture Top agencies Army (Department of the Army)	$13,926,776	0.6%	Rank history: not on the FY2021 list, #4 in FY2023, not on the FY2024 list and #29 in FY2025; new.
35	Medical Science & Computing, LLC Top agencies HHS (Department of Health and Human Services)	$13,676,067	0.6%	Rank history: not on the FY2021 list, #34 in FY2023 and not on the FY2024–FY2025 lists; up 89 since FY2021.
36	Eagle Global Scientific, LLC Top agencies HHS (Department of Health and Human Services)	$13,215,817	0.6%	Rank history: #40 in FY2021, #33 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
37	Linquest Corporation Top agencies USAF (Department of the Air Force)	$12,953,146	0.6%	Rank history: #8 in FY2021 and not on the FY2023–FY2025 lists; down 29 since FY2021.
38	Dependable Global Solutions, LLC Top agencies DOE (Department of Energy)	$12,335,029	0.5%	Rank history: not on the FY2021 list, #98 in FY2023 and not on the FY2024–FY2025 lists; new.
39	Camp Dresser & Mckee Inc. Through CDM Federal Programs Corporation Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation)	$12,084,779	0.5%	Rank history: #20 in FY2021 and not on the FY2023–FY2025 lists; down 19 since FY2021.
40	Space Systems/Loral LLC 2 awardees, including Vantor Services Inc. Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force)	$12,060,304	0.5%	Rank history: #47 in FY2021, #37 in FY2023, #70 in FY2024 and not on the FY2025 list; up 7 since FY2021.
41	Global Engineering & Technology Inc. Top agencies DOE (Department of Energy)	$11,519,542	0.5%	Rank history: #35 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
42	Science Applications International Corporation 3 awardees Top agencies DOT (Department of Transportation)	$11,434,329	0.5%	Rank history: #31 in FY2021, #46 in FY2023, #60 in FY2024 and #39 in FY2025; down 11 since FY2021.
43	Health Services Holdings Inc. Through Health Services Advisory Group, Inc. Top agencies HHS (Department of Health and Human Services)	$11,178,571	0.5%	Rank history: #32 in FY2021, #31 in FY2023, #65 in FY2024 and not on the FY2025 list; down 11 since FY2021.
44	Deloitte LLP 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies USAID (US Agency for International Development) HHS (Department of Health and Human Services) Army (Department of the Army)	$10,599,332	0.5%	Rank history: #21 in FY2021, #65 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2021.
45	Hdr, Inc. 4 awardees, including HDR Environmental, Operations and Construction, Inc. and HDR Engineering, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$10,394,353	0.5%	Rank history: #29 in FY2021, #49 in FY2023, #25 in FY2024 and #24 in FY2025; down 16 since FY2021.
46	Olgoonik Corporation Through Olgoonik Solutions LLC Top agencies DOS (Department of State) OSD (Office of the Secretary of Defense)	$10,312,425	0.4%	Rank history: #34 in FY2021 and not on the FY2023–FY2025 lists; down 12 since FY2021.
47	International Business Machines Corporation Top agencies HHS (Department of Health and Human Services)	$10,291,542	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
48	System One Holdings, LLC Through Gap Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$10,134,166	0.4%	Rank history: not on the FY2021 list, #20 in FY2023, #51 in FY2024 and not on the FY2025 list; up 63 since FY2021.
49	Kelly Services, Inc. Top agencies HHS (Department of Health and Human Services)	$10,095,131	0.4%	Rank history: not on the FY2021 list, not on the FY2023 list, #2 in FY2024 and #4 in FY2025; up 154 since FY2021.
50	The Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top agencies OSD (Office of the Secretary of Defense) DOS (Department of State) DTRA (Defense Threat Reduction Agency)	$9,833,595	0.4%	Rank history: #37 in FY2021, #42 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
51	Accenture Inc. Through Accenture Federal Services LLC Top agencies Navy (Department of the Navy)	$9,247,692	0.4%	Rank history: not on the FY2021 list, #45 in FY2023 and not on the FY2024–FY2025 lists; new.
52	Strativia LLC Top agencies Commerce (Department of Commerce)	$9,158,538	0.4%	Rank history: #51 in FY2021, #60 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
53	Nathan Associates LLC Top agencies USAID (US Agency for International Development)	$8,457,483	0.4%	Rank history: not on the FY2021 list, #48 in FY2023, #97 in FY2024 and #70 in FY2025; up 48 since FY2021.
54	Kegman Inc. Top agencies USAF (Department of the Air Force)	$8,338,111	0.4%	Rank history: #69 in FY2021, #35 in FY2023, #34 in FY2024 and #27 in FY2025; up 15 since FY2021.
55	Swmg Productions Inc. Top agencies Army (Department of the Army)	$8,223,141	0.4%	Rank history: #55 in FY2021, not on the FY2023 list, #74 in FY2024 and #49 in FY2025; unchanged since FY2021.
56	Serco North America (Holdings) Inc Through Serco Inc. Top agencies Navy (Department of the Navy)	$8,064,935	0.4%	Rank history: #52 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
57	Sealaska Corporation Through Managed Business Solutions LLC Top agencies DOI (Department of the Interior)	$7,935,248	0.3%	Rank history: #43 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2021.
58	On Assignment, Inc. 3 awardees, including ECS Federal, LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$7,899,198	0.3%	Rank history: #17 in FY2021 and not on the FY2023–FY2025 lists; down 41 since FY2021.
59	Mobius Consulting, LLC Top agencies MDA (DOD Missile Defense Agency)	$7,836,090	0.3%	Rank history: not on the FY2021 list, #68 in FY2023 and not on the FY2024–FY2025 lists; up 56 since FY2021.
60	Technology Security Associates, Inc. Top agencies Navy (Department of the Navy)	$7,751,821	0.3%	Rank history: #67 in FY2021, #64 in FY2023, #43 in FY2024 and #52 in FY2025; up 7 since FY2021.
61	Akima Data Management LLC Top agencies DTRA (Defense Threat Reduction Agency)	$7,655,718	0.3%	Rank history: not on the FY2021 list, #62 in FY2023 and not on the FY2024–FY2025 lists; new.
62	John Snow, Incorporated Top agencies USAID (US Agency for International Development)	$7,527,054	0.3%	Rank history: not on the FY2021 list, #43 in FY2023, #45 in FY2024 and not on the FY2025 list; new.
63	Creative Associates International, Inc. Top agencies USAID (US Agency for International Development)	$7,298,587	0.3%	Rank history: #38 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
64	K2 Group, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$7,086,728	0.3%	Rank history: #61 in FY2021, not on the FY2023 list, #59 in FY2024 and #42 in FY2025; down 3 since FY2021.
65	Research Triangle Institute Top agencies HHS (Department of Health and Human Services) USAID (US Agency for International Development) Army (Department of the Army)	$7,071,731	0.3%	Rank history: not on the FY2021 list, #30 in FY2023, #14 in FY2024 and #6 in FY2025; new.
66	General Dynamics Information Technology, Inc. Top agencies HHS (Department of Health and Human Services)	$7,063,763	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
67	Pundir Group, Inc. Top agencies GSA (General Services Administration) DOJ (Department of Justice) DHS (Department of Homeland Security)	$6,927,451	0.3%	Rank history: not on the FY2021 list, #44 in FY2023, #29 in FY2024 and #15 in FY2025; up 71 since FY2021.
68	22Nd Century Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$6,924,044	0.3%	Rank history: not on the FY2021 list, #57 in FY2023, not on the FY2024 list and #64 in FY2025; up 137 since FY2021.
69	Goldbelt, Incorporated 2 awardees, including Goldbelt C6, LLC and Goldbelt Professional Services, LLC Top agencies HHS (Department of Health and Human Services)	$6,838,228	0.3%	Rank history: #85 in FY2021, #53 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2021.
70	Northrop Grumman Corporation 4 awardees, including Orbital Sciences LLC Top agencies Navy (Department of the Navy)	$6,649,461	0.3%	Rank history: #44 in FY2021, not on the FY2023 list, #69 in FY2024 and not on the FY2025 list; down 26 since FY2021.
71	Bmnt Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$6,558,642	0.3%	Rank history: #82 in FY2021, #100 in FY2023, #72 in FY2024 and not on the FY2025 list; up 11 since FY2021.
72	DAI Global LLC Top agencies USAID (US Agency for International Development)	$6,357,120	0.3%	Rank history: not on the FY2021 list, #58 in FY2023, #18 in FY2024 and not on the FY2025 list; up 31 since FY2021.
73	Ripple Effect Communications, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$6,269,445	0.3%	Rank history: #45 in FY2021 and not on the FY2023–FY2025 lists; down 28 since FY2021.
74	Chinook Systems Inc. Top agencies WHS (DOD Washington Headquarters Service) GSA (General Services Administration) Army (Department of the Army)	$6,256,863	0.3%	Rank history: #56 in FY2021 and not on the FY2023–FY2025 lists; down 18 since FY2021.
75	Kennell & Associates Inc. Top agencies DHA (Defense Health Agency)	$5,800,111	0.3%	Rank history: #70 in FY2021, #69 in FY2023, #67 in FY2024 and #54 in FY2025; down 5 since FY2021.
76	Commdex, LLC Top agencies DOI (Department of the Interior)	$5,737,005	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 38 since FY2021.
77	Intrahealth International, Inc. Top agencies USAID (US Agency for International Development)	$5,682,946	0.2%	Rank history: not on the FY2021 list, #83 in FY2023 and not on the FY2024–FY2025 lists; new.
78	American Institutes for Research In the Behavioral Sciences 2 awardees Top agencies HHS (Department of Health and Human Services) MCC (Millennium Challenge Corporation)	$5,538,494	0.2%	Rank history: #95 in FY2021, #70 in FY2023, #52 in FY2024 and #47 in FY2025; up 17 since FY2021.
79	Lynker Corporation Top agencies Commerce (Department of Commerce)	$5,492,386	0.2%	Rank history: #65 in FY2021 and not on the FY2023–FY2025 lists; down 14 since FY2021.
80	Natives of Kodiak, Incorporated Through Environmental Assessment Services, LLC Top agencies Army (Department of the Army)	$5,477,746	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 118 since FY2021.
81	Bates White, LLC Top agencies Treasury (Department of the Treasury) FTC (Federal Trade Commission)	$5,471,147	0.2%	Rank history: not on the FY2021 list, #85 in FY2023, #64 in FY2024 and not on the FY2025 list; up 386 since FY2021.
82	CCS Associates, Inc. Top agencies HHS (Department of Health and Human Services)	$5,449,610	0.2%	Rank history: #60 in FY2021, #89 in FY2023, #80 in FY2024 and #81 in FY2025; down 22 since FY2021.
83	Fedwriters, Inc. Top agencies Commerce (Department of Commerce) Navy (Department of the Navy)	$5,417,420	0.2%	Rank history: not on the FY2021 list, #78 in FY2023, #61 in FY2024 and #33 in FY2025; up 338 since FY2021.
84	Ho-Chunk Shared Services Company Top agencies USAF (Department of the Air Force)	$5,412,422	0.2%	Rank history: not on the FY2021 list, #86 in FY2023, #77 in FY2024 and not on the FY2025 list; up 20 since FY2021.
85	Mriglobal Top agencies HHS (Department of Health and Human Services)	$5,389,977	0.2%	Rank history: #90 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
86	Bering Straits Native Corporation Through Bering Global Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$5,365,254	0.2%	Rank history: #72 in FY2021, #77 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2021.
87	Akima Systems Engineering LLC Top agencies DOI (Department of the Interior)	$5,272,016	0.2%	Rank history: #75 in FY2021, #88 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2021.
88	Nana Regional Corporation Inc 2 awardees, including Tuva LLC Top agencies DOE (Department of Energy)	$5,150,000	0.2%	Rank history: #62 in FY2021 and not on the FY2023–FY2025 lists; down 26 since FY2021.
89	Systex, Inc. Top agencies HHS (Department of Health and Human Services)	$5,148,079	0.2%	Rank history: #79 in FY2021, #79 in FY2023, #82 in FY2024 and #65 in FY2025; down 10 since FY2021.
90	Financial Markets International, Inc. Top agencies USAID (US Agency for International Development)	$5,009,656	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
91	IO Environmental and Infrastructure Incorporated Top agencies Navy (Department of the Navy)	$4,951,803	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 42 since FY2021.
92	Phigenics LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$4,834,455	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 14 since FY2021.
93	Winrock International Institute for Agricultural Development Top agencies USAID (US Agency for International Development)	$4,671,176	0.2%	Rank history: not on the FY2021 list, #96 in FY2023, #24 in FY2024 and not on the FY2025 list; new.
94	UEI F1D1GLREXKW5 Top agencies Navy (Department of the Navy)	$4,564,252	0.2%	Rank history: #76 in FY2021, #93 in FY2023, #98 in FY2024 and #94 in FY2025; down 18 since FY2021.
95	Ratp DEV USA Inc. Through Framatome Inc. Top agencies Commerce (Department of Commerce)	$4,478,318	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 95 since FY2021.
96	Goldbelt Frontier, LLC Top agencies Army (Department of the Army)	$4,477,294	0.2%	Rank history: #80 in FY2021, not on the FY2023–FY2024 lists and #82 in FY2025; down 16 since FY2021.
97	Tactica Management Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$4,380,359	0.2%	Rank history: #89 in FY2021, #73 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2021.
98	Regents of the University of Michigan Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$4,315,777	0.2%	Rank history: #93 in FY2021, #72 in FY2023, #95 in FY2024 and #99 in FY2025; down 5 since FY2021.
99	Dataconsult-Io LLC Top agencies HHS (Department of Health and Human Services)	$4,310,183	0.2%	Rank history: not on the FY2021 list, #87 in FY2023, #89 in FY2024 and not on the FY2025 list; up 13 since FY2021.
100	Identification Technology Partners Inc. Top agencies DHS (Department of Homeland Security)	$4,307,482	0.2%	Rank history: #74 in FY2021 and not on the FY2023–FY2025 lists; down 26 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 $2.3 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