Top 100 Contractors in NAICS 541720: Research and Development in the Social Sciences and Humanities, Jul 2025–Jun 2026

Name: Top 100 Contractors in NAICS 541720: Research and Development in the Social Sciences and Humanities, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 60% of NAICS 541720 contract dollars from July 2025 through June 2026

Contract obligations: $763,526,304 Net of deobligations, by contracts coded NAICS 541720
Contractors: 302 Parent companies with an obligation
Largest contractor: Mathematica Inc. $94.6 million, 10.9% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Mathematica Inc. 2 awardees Top agencies HHS (Department of Health and Human Services) ED (Department of Education)	$94,611,097	10.9%	Rank history: #3 in FY2021, #2 in FY2022, #3 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
2	National Opinion Research Center Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor) DHRA (Defense Human Resources Activity)	$71,212,132	8.2%	Rank history: #7 in FY2021, #8 in FY2022, #4 in FY2023, #6 in FY2024 and #6 in FY2025; up 3 since Jul 2024–Jun 2025.
3	The Rand Corporation Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$58,341,416	6.7%	Rank history: #2 in FY2021, #3 in FY2022, #1 in FY2023, #3 in FY2024 and #8 in FY2025; up 1 since Jul 2024–Jun 2025.
4	The Mitre Corporation Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) Navy (Department of the Navy)	$55,145,216	6.4%	Rank history: #12 in FY2021, #14 in FY2022, #12 in FY2023, #12 in FY2024 and #4 in FY2025; up 8 since Jul 2024–Jun 2025.
5	Westat, Inc. 2 awardees Top agencies ED (Department of Education) HHS (Department of Health and Human Services)	$51,871,996	6.0%	Rank history: #6 in FY2021, #4 in FY2022, #5 in FY2023, #5 in FY2024 and #7 in FY2025; down 2 since Jul 2024–Jun 2025.
6	Educational Testing Service Top agencies ED (Department of Education)	$47,990,485	5.5%	Rank history: #10 in FY2021, #10 in FY2022, #8 in FY2023, #9 in FY2024 and #3 in FY2025; unchanged since Jul 2024–Jun 2025.
7	UnitedHealth Group Incorporated Through The Lewin Group, Inc. Top agencies HHS (Department of Health and Human Services)	$43,751,184	5.1%	Rank history: #8 in FY2021, #9 in FY2022, #10 in FY2023, #8 in FY2024 and #16 in FY2025; up 6 since Jul 2024–Jun 2025.
8	American Institutes for Research In the Behavioral Sciences Top agencies HHS (Department of Health and Human Services) ED (Department of Education)	$38,252,943	4.4%	Rank history: #5 in FY2021, #7 in FY2022, #7 in FY2023, #7 in FY2024 and #10 in FY2025; unchanged since Jul 2024–Jun 2025.
9	University of Maryland, College Park Top agencies OSD (Office of the Secretary of Defense) DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy)	$31,688,003	3.7%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023, #14 in FY2024 and #5 in FY2025; down 2 since Jul 2024–Jun 2025.
10	Fors Marsh Group LLC Top agencies DHRA (Defense Human Resources Activity) Army (Department of the Army) SEC (Securities and Exchange Commission)	$30,645,459	3.5%	Rank history: #11 in FY2021, #13 in FY2022, #9 in FY2023, #11 in FY2024 and #9 in FY2025; unchanged since Jul 2024–Jun 2025.
11	University System of Maryland Through University of Maryland, College Park Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$13,504,295	1.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
12	ABT Global LLC 2 awardees Top agencies HHS (Department of Health and Human Services) ED (Department of Education)	$11,533,659	1.3%	Rank history: #22 in FY2021, #11 in FY2022, #14 in FY2023, #13 in FY2024 and #20 in FY2025; up 4 since Jul 2024–Jun 2025.
13	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$11,352,375	1.3%	Rank history: #4 in FY2021, #5 in FY2022, #6 in FY2023, #4 in FY2024 and not on the FY2025 list; down 4 since Jul 2024–Jun 2025.
14	Lockheed Martin Corporation Top agencies MDA (DOD Missile Defense Agency) OSD (Office of the Secretary of Defense)	$11,247,886	1.3%	Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; down 12 since Jul 2024–Jun 2025.
15	New South Associates, Inc. Top agencies Army (Department of the Army)	$9,188,907	1.1%	Rank history: #20 in FY2021, #22 in FY2022, #24 in FY2023, #19 in FY2024 and #13 in FY2025; up 4 since Jul 2024–Jun 2025.
16	Pearson PLC Through NCS Pearson Inc. Top agencies ED (Department of Education)	$7,277,746	0.8%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023, #15 in FY2024 and #31 in FY2025; up 18 since Jul 2024–Jun 2025.
17	Acumen LLC Top agencies HHS (Department of Health and Human Services)	$6,890,270	0.8%	Rank history: #19 in FY2021, #59 in FY2022, #20 in FY2023, #16 in FY2024 and #11 in FY2025; down 3 since Jul 2024–Jun 2025.
18	Deloitte Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$6,439,923	0.7%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #14 in FY2025; down 7 since Jul 2024–Jun 2025.
19	Implenomics Llcs Top agencies HHS (Department of Health and Human Services)	$5,697,868	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
20	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies HHS (Department of Health and Human Services)	$5,502,175	0.6%	Rank history: #51 in FY2021, #48 in FY2022, #18 in FY2023, #20 in FY2024 and #19 in FY2025; up 2 since Jul 2024–Jun 2025.
21	Peraton Inc. Top agencies DHRA (Defense Human Resources Activity) Army (Department of the Army)	$5,321,389	0.6%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #18 in FY2025; up 18 since Jul 2024–Jun 2025.
22	Sri International Top agencies ED (Department of Education)	$5,200,796	0.6%	Rank history: #81 in FY2021, #28 in FY2022, #29 in FY2023, #30 in FY2024 and #37 in FY2025; new, not ranked in Jul 2024–Jun 2025.
23	Soar 365 Top agencies DLA (Defense Logistics Agency)	$5,139,300	0.6%	Rank history: not on the FY2021 list, #29 in FY2022, #34 in FY2023, #29 in FY2024 and #21 in FY2025; up 1 since Jul 2024–Jun 2025.
24	The Regents of the University of Colorado Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$4,810,511	0.6%	Rank history: #28 in FY2021, #26 in FY2022, #25 in FY2023, #35 in FY2024 and #28 in FY2025; up 26 since Jul 2024–Jun 2025.
25	National Academy of Sciences Top agencies SSA (Social Security Administration) DOT (Department of Transportation) OPM (Office of Personnel Management)	$4,787,507	0.6%	Rank history: #30 in FY2021, #33 in FY2022, #17 in FY2023, #21 in FY2024 and #25 in FY2025; down 2 since Jul 2024–Jun 2025.
26	Regents of the University of Michigan Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$4,741,933	0.5%	Rank history: #23 in FY2021, #31 in FY2022, #30 in FY2023, #34 in FY2024 and #23 in FY2025; unchanged since Jul 2024–Jun 2025.
27	Telemus Group LLC Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$4,691,557	0.5%	Rank history: #46 in FY2021, #61 in FY2022, #49 in FY2023, #49 in FY2024 and #29 in FY2025; up 26 since Jul 2024–Jun 2025.
28	Trustees of Boston University Top agencies VA (Department of Veterans Affairs)	$4,642,210	0.5%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; new, not ranked in Jul 2024–Jun 2025.
29	Reli Group Inc. Top agencies HHS (Department of Health and Human Services)	$4,633,390	0.5%	Rank history: not on the FY2021 list, #20 in FY2022, #16 in FY2023, #17 in FY2024 and #15 in FY2025; down 12 since Jul 2024–Jun 2025.
30	Decision Information Resources, Inc. Top agencies ED (Department of Education)	$4,465,346	0.5%	Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; new, not ranked in Jul 2024–Jun 2025.
31	Wested Top agencies ED (Department of Education)	$4,278,473	0.5%	Rank history: not on the FY2021 list, #30 in FY2022, #27 in FY2023, #31 in FY2024 and #36 in FY2025; up 32 since Jul 2024–Jun 2025.
32	Econometrica, Inc. Top agencies HHS (Department of Health and Human Services)	$4,165,086	0.5%	Rank history: #21 in FY2021, #32 in FY2022, #32 in FY2023, #22 in FY2024 and #27 in FY2025; down 11 since Jul 2024–Jun 2025.
33	Toxcel LLC Top agencies DOT (Department of Transportation)	$4,033,746	0.5%	Rank history: #37 in FY2021, #42 in FY2022, not on the FY2023 list, #40 in FY2024 and #24 in FY2025; unchanged since Jul 2024–Jun 2025.
34	Baron Public Affairs LLC Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$3,728,965	0.4%	Rank history: not on the FY2021 list, #70 in FY2022, #47 in FY2023, #43 in FY2024 and #35 in FY2025; up 27 since Jul 2024–Jun 2025.
35	Semanticbits LLC Through ICF Incorporated, L.L.C. Top agencies Army (Department of the Army)	$3,346,983	0.4%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #45 in FY2025; up 5 since Jul 2024–Jun 2025.
36	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services)	$2,988,449	0.3%	Rank history: #15 in FY2021, #21 in FY2022, #23 in FY2023, #33 in FY2024 and #32 in FY2025; down 7 since Jul 2024–Jun 2025.
37	Personnel Decisions Research Institutes, LLC Top agencies Army (Department of the Army) DOT (Department of Transportation)	$2,842,027	0.3%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #48 in FY2025; up 32 since Jul 2024–Jun 2025.
38	Dynamis, Inc. Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$2,648,007	0.3%	Rank history: #55 in FY2021, #64 in FY2022, #63 in FY2023, #56 in FY2024 and #71 in FY2025; up 257 since Jul 2024–Jun 2025.
39	Development Services Group, Inc. Top agencies ED (Department of Education)	$2,474,872	0.3%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; new, not ranked in Jul 2024–Jun 2025.
40	Stratevarious Inc. Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$2,374,864	0.3%	Rank history: #96 in FY2021, #53 in FY2022, #46 in FY2023, #47 in FY2024 and #47 in FY2025; up 6 since Jul 2024–Jun 2025.
41	Statistical Research Inc. Top agencies Navy (Department of the Navy)	$2,233,861	0.3%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #42 in FY2025; up 8 since Jul 2024–Jun 2025.
42	Sanametrix Inc Top agencies ED (Department of Education)	$2,102,893	0.2%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023, #37 in FY2024 and #78 in FY2025; up 51 since Jul 2024–Jun 2025.
43	International Data Systems LLC Top agencies DHA (Defense Health Agency)	$2,018,623	0.2%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #40 in FY2025; unchanged since Jul 2024–Jun 2025.
44	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs)	$2,002,157	0.2%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #59 in FY2025; up 160 since Jul 2024–Jun 2025.
45	Charmtech Labs LLC Top agencies ED (Department of Education)	$2,000,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Jul 2024–Jun 2025.
46	BW Research Partnership Inc. Top agencies DOE (Department of Energy)	$1,935,048	0.2%	Rank history: #57 in FY2021, #58 in FY2022, #55 in FY2023, #87 in FY2024 and #30 in FY2025; up 13 since Jul 2024–Jun 2025.
47	Insignia Health LLC Top agencies HHS (Department of Health and Human Services)	$1,927,288	0.2%	Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #43 in FY2025; down 5 since Jul 2024–Jun 2025.
48	Center for Strategic and Budgetary Assessments Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$1,820,304	0.2%	Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and #60 in FY2025; up 18 since Jul 2024–Jun 2025.
49	Anlar LLC Top agencies ED (Department of Education)	$1,626,322	0.2%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; up 146 since Jul 2024–Jun 2025.
50	Long Term Strategy Group, LLC Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$1,612,591	0.2%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #70 in FY2025; up 15 since Jul 2024–Jun 2025.
51	University of Rochester Top agencies USAF (Department of the Air Force)	$1,500,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and not on the FY2024–FY2025 lists; up 92 since Jul 2024–Jun 2025.
52	Fundacion Inciensa Top agencies HHS (Department of Health and Human Services)	$1,451,361	0.2%	Rank history: #17 in FY2021, #16 in FY2022, #15 in FY2023, #28 in FY2024 and #12 in FY2025; down 37 since Jul 2024–Jun 2025.
53	Louisiana State University Health Sciences Center New Orleans Top agencies HHS (Department of Health and Human Services)	$1,412,194	0.2%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #49 in FY2025; down 9 since Jul 2024–Jun 2025.
54	Stichting I.e.a. Secretariaat Nederland Top agencies ED (Department of Education)	$1,122,707	0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Jul 2024–Jun 2025.
55	University of Pittsburgh - of the Commonwealth System of Higher Education Top agencies VA (Department of Veterans Affairs)	$1,074,173	0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Jul 2024–Jun 2025.
56	Metamorphix, Inc. Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Jul 2024–Jun 2025.
57	Linguistic Inc. Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; new, not ranked in Jul 2024–Jun 2025.
58	Edifii, Inc. Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; new, not ranked in Jul 2024–Jun 2025.
59	The Calsoyas Group, LLC Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Jul 2024–Jun 2025.
60	Edify Technologies, Inc. Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021 list, #85 in FY2022, not on the FY2023–FY2024 lists and #66 in FY2025; new, not ranked in Jul 2024–Jun 2025.
61	Immersed Games Inc. Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Jul 2024–Jun 2025.
62	Makefully LLC Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; new, not ranked in Jul 2024–Jun 2025.
63	Common Ground Publishing, LLC Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Jul 2024–Jun 2025.
64	The Ohio State University Top agencies USAF (Department of the Air Force)	$975,662	0.1%	Rank history: #14 in FY2021, #34 in FY2022, not on the FY2023–FY2024 lists and #44 in FY2025; up 3 since Jul 2024–Jun 2025.
65	Wapsi Valley Archaeology, Inc. Top agencies Army (Department of the Army)	$963,194	0.1%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #39 in FY2025; down 34 since Jul 2024–Jun 2025.
66	Center for Strategic & International Studies Inc. Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$868,843	0.1%	Rank history: #63 in FY2021, not on the FY2022 list, #93 in FY2023, #68 in FY2024 and #58 in FY2025; down 6 since Jul 2024–Jun 2025.
67	JOS Group LLC Top agencies IMLS (The Institute of Museum and Library Services)	$855,290	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023, #88 in FY2024 and #73 in FY2025; up 3 since Jul 2024–Jun 2025.
68	Actuarial Research Corporation Top agencies HHS (Department of Health and Human Services)	$837,348	0.1%	Rank history: #34 in FY2021, #35 in FY2022, #35 in FY2023, #27 in FY2024 and #50 in FY2025; down 43 since Jul 2024–Jun 2025.
69	New Editions, Inc. Top agencies ED (Department of Education)	$832,552	0.1%	Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #75 in FY2025; down 51 since Jul 2024–Jun 2025.
70	Guardian Defense Group, Inc. Top agencies Navy (Department of the Navy)	$810,419	0.1%	Rank history: not on the FY2021 list, #92 in FY2022, #95 in FY2023, not on the FY2024 list and #72 in FY2025; up 4 since Jul 2024–Jun 2025.
71	Core Correctional Solutions, LLC Top agencies CSOSA (Court Services and Offender Supervision Agency)	$807,272	0.1%	Rank history: #79 in FY2021, not on the FY2022 list, #91 in FY2023, not on the FY2024 list and #76 in FY2025; new, not ranked in Jul 2024–Jun 2025.
72	Brockington and Associates, Inc. Top agencies Army (Department of the Army)	$803,692	0.1%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #55 in FY2025; down 34 since Jul 2024–Jun 2025.
73	PPD Development LP Top agencies HHS (Department of Health and Human Services)	$801,639	0.1%	Rank history: not on the FY2021–FY2025 lists; up 14 since Jul 2024–Jun 2025.
74	Atlantic Council of the United States, Inc. (The) Top agencies DTRA (Defense Threat Reduction Agency)	$730,077	0.1%	Rank history: not on the FY2021 list, #90 in FY2022, #51 in FY2023, #64 in FY2024 and #74 in FY2025; down 23 since Jul 2024–Jun 2025.
75	Southeastern Archaeological Research Inc. Top agencies Army (Department of the Army)	$683,230	0.1%	Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and #79 in FY2025; down 28 since Jul 2024–Jun 2025.
76	Pax Environmental, LLC Top agencies Navy (Department of the Navy)	$676,051	0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 235 since Jul 2024–Jun 2025.
77	Advanced Regenerative Manufacturing Institute Inc. Top agencies HHS (Department of Health and Human Services)	$669,200	0.1%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and not on the FY2025 list; down 29 since Jul 2024–Jun 2025.
78	University of Connecticut Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$623,868	0.1%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and #80 in FY2025; up 114 since Jul 2024–Jun 2025.
79	The Rockefeller University Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$621,254	0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; up 9 since Jul 2024–Jun 2025.
80	The Manhattan Strategy Group LLC Top agencies ED (Department of Education)	$619,356	0.1%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #51 in FY2025; down 50 since Jul 2024–Jun 2025.
81	Research Institute At Nationwide Children's Hospital Top agencies HHS (Department of Health and Human Services)	$598,687	0.1%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #83 in FY2025; down 26 since Jul 2024–Jun 2025.
82	Guidehouse Inc. Through Peraton Inc. Top agencies Army (Department of the Army)	$595,046	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
83	Exovera LLC Top agencies WHS (DOD Washington Headquarters Service)	$594,538	0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; new, not ranked in Jul 2024–Jun 2025.
84	Applied Earthworks, Inc. Top agencies USDA (Department of Agriculture)	$582,109	0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and not on the FY2024–FY2025 lists; up 234 since Jul 2024–Jun 2025.
85	Itnova LLC Top agencies Navy (Department of the Navy)	$548,161	0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; new, not ranked in Jul 2024–Jun 2025.
86	Environmental Research Group LLC Top agencies Army (Department of the Army)	$505,963	0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; down 24 since Jul 2024–Jun 2025.
87	Acacia Heritage Consulting LLC Top agencies USDA (Department of Agriculture)	$504,914	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and not on the FY2024–FY2025 lists; up 12 since Jul 2024–Jun 2025.
88	University of Texas At Arlington Top agencies Army (Department of the Army)	$493,653	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
89	University of Texas System Through University of Texas Health Science Center At Houston Top agencies VA (Department of Veterans Affairs)	$491,953	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
90	Techtrans International Inc. Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$472,717	0.1%	Rank history: not on the FY2021–FY2025 lists; up 230 since Jul 2024–Jun 2025.
91	The Pennsylvania State University Top agencies USAF (Department of the Air Force)	$469,320	0.1%	Rank history: #93 in FY2021, not on the FY2022–FY2024 lists and #96 in FY2025; up 10 since Jul 2024–Jun 2025.
92	Topsarge Business Solutions, LLC Top agencies Army (Department of the Army)	$459,900	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
93	NEZ Perce Tribe Top agencies Army (Department of the Army)	$457,664	0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 79 since Jul 2024–Jun 2025.
94	JAE Anderson Top agencies Smithsonian (Smithsonian Institution)	$453,195	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	Chickasaw Health Consulting, LLC Top agencies DOT (Department of Transportation)	$431,095	<0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023, #91 in FY2024 and #89 in FY2025; down 9 since Jul 2024–Jun 2025.
96	Confederated Tribes of Colville Reservation Top agencies Army (Department of the Army)	$430,122	<0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; unchanged since Jul 2024–Jun 2025.
97	R. Christopher Goodwin & Associates, Inc. Top agencies USDA (Department of Agriculture)	$425,028	<0.1%	Rank history: #45 in FY2021, #54 in FY2022, not on the FY2023 list, #98 in FY2024 and #94 in FY2025; down 25 since Jul 2024–Jun 2025.
98	Bluedrop USA Inc. Top agencies Navy (Department of the Navy)	$396,230	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
99	Lone Pine Geoeconomics Inc. Top agencies OSD (Office of the Secretary of Defense)	$389,450	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
100	Nonproliferation Policy Education Center, Inc. Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$387,671	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.

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100 of 302 contractors listed here. See the rest on GovTribe.

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 $865 million 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 NAICS 541720 contractors in Jul 2025–Jun 2026?

1. Mathematica Inc. ($94.6M), 2. National Opinion Research Center ($71.2M), 3. The Rand Corporation ($58.3M), 4. The Mitre Corporation ($55.1M), 5. Westat, Inc. ($51.9M), 6. Educational Testing Service ($48M), 7. UnitedHealth Group Incorporated ($43.8M), 8. American Institutes for Research In the Behavioral Sciences ($38.3M), 9. University of Maryland, College Park ($31.7M), 10. Fors Marsh Group LLC ($30.6M).

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