Top 100 Contractors in NAICS 541720: Research and Development in the Social Sciences and Humanities, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	The Rand Corporation Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$160,229,675	13.6%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2024 and #8 in FY2025; up 2 since FY2022.
2	Lockheed Martin Corporation 3 awardees Top agencies MDA (DOD Missile Defense Agency)	$136,860,284	11.6%	Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2024 and #1 in FY2025; down 1 since FY2022.
3	Mathematica Inc 2 awardees Top agencies HHS (Department of Health and Human Services) ED (Department of Education) NSF (National Science Foundation)	$85,509,700	7.3%	Rank history: #3 in FY2021, #2 in FY2022, #1 in FY2024 and #2 in FY2025; down 1 since FY2022.
4	National Opinion Research Center Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor) DHRA (Defense Human Resources Activity)	$79,251,908	6.7%	Rank history: #7 in FY2021, #8 in FY2022, #6 in FY2024 and #6 in FY2025; up 4 since FY2022.
5	Westat, Inc. Top agencies ED (Department of Education) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$77,066,748	6.5%	Rank history: #6 in FY2021, #4 in FY2022, #5 in FY2024 and #7 in FY2025; down 1 since FY2022.
6	Research Triangle Institute Top agencies HHS (Department of Health and Human Services) ED (Department of Education)	$75,032,604	6.4%	Rank history: #4 in FY2021, #5 in FY2022, #4 in FY2024 and not on the FY2025 list; down 1 since FY2022.
7	American Institutes for Research In the Behavioral Sciences 2 awardees Top agencies ED (Department of Education) HHS (Department of Health and Human Services)	$58,756,773	5.0%	Rank history: #5 in FY2021, #7 in FY2022, #7 in FY2024 and #10 in FY2025; unchanged since FY2022.
8	Educational Testing Service Top agencies ED (Department of Education)	$44,022,185	3.7%	Rank history: #10 in FY2021, #10 in FY2022, #9 in FY2024 and #3 in FY2025; up 2 since FY2022.
9	Fors Marsh Group LLC 2 awardees Top agencies DHRA (Defense Human Resources Activity) Army (Department of the Army) SEC (Securities and Exchange Commission)	$30,333,259	2.6%	Rank history: #11 in FY2021, #13 in FY2022, #11 in FY2024 and #9 in FY2025; up 4 since FY2022.
10	UnitedHealth Group Incorporated Through The Lewin Group, Inc. Top agencies HHS (Department of Health and Human Services)	$19,367,111	1.6%	Rank history: #8 in FY2021, #9 in FY2022, #8 in FY2024 and #16 in FY2025; down 1 since FY2022.
11	Deloitte LLP Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services)	$19,330,773	1.6%	Rank history: #9 in FY2021, #37 in FY2022 and not on the FY2024–FY2025 lists; up 26 since FY2022.
12	The Mitre Corporation Top agencies Commerce (Department of Commerce) DOS (Department of State) USAF (Department of the Air Force)	$19,181,854	1.6%	Rank history: #12 in FY2021, #14 in FY2022, #12 in FY2024 and #4 in FY2025; up 2 since FY2022.
13	Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$14,874,189	1.3%	Rank history: not on the FY2021 list, #12 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
14	ABT Global LLC 2 awardees Top agencies HHS (Department of Health and Human Services) ED (Department of Education)	$13,098,478	1.1%	Rank history: #22 in FY2021, #11 in FY2022, #13 in FY2024 and #20 in FY2025; down 3 since FY2022.
15	Fundacion Inciensa Top agencies HHS (Department of Health and Human Services)	$11,030,693	0.9%	Rank history: #17 in FY2021, #16 in FY2022, #28 in FY2024 and #12 in FY2025; up 1 since FY2022.
16	Reli Group Inc. Top agencies HHS (Department of Health and Human Services)	$9,962,558	0.8%	Rank history: not on the FY2021 list, #20 in FY2022, #17 in FY2024 and #15 in FY2025; up 4 since FY2022.
17	National Academy of Sciences Top agencies SSA (Social Security Administration) NSF (National Science Foundation) DOT (Department of Transportation)	$9,519,487	0.8%	Rank history: #30 in FY2021, #33 in FY2022, #21 in FY2024 and #25 in FY2025; up 16 since FY2022.
18	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies HHS (Department of Health and Human Services)	$9,023,562	0.8%	Rank history: #51 in FY2021, #48 in FY2022, #20 in FY2024 and #19 in FY2025; up 30 since FY2022.
19	The Center for Employment Security Education & Research Inc. Top agencies DOL (Department of Labor)	$9,000,000	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
20	Acumen LLC Top agencies HHS (Department of Health and Human Services)	$8,648,798	0.7%	Rank history: #19 in FY2021, #59 in FY2022, #16 in FY2024 and #11 in FY2025; up 39 since FY2022.
21	Education Development Center, Inc. Top agencies USAID (US Agency for International Development)	$8,453,880	0.7%	Rank history: not on the FY2021 list, #52 in FY2022, #24 in FY2024 and not on the FY2025 list; up 31 since FY2022.
22	Tetra Tech, Inc. Through Tetra TECH ES, Inc. Top agencies USAID (US Agency for International Development)	$7,625,000	0.6%	Rank history: #31 in FY2021, #23 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
23	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services)	$7,310,326	0.6%	Rank history: #15 in FY2021, #21 in FY2022, #33 in FY2024 and #32 in FY2025; down 2 since FY2022.
24	New South Associates, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) Navy (Department of the Navy)	$6,303,905	0.5%	Rank history: #20 in FY2021, #22 in FY2022, #19 in FY2024 and #13 in FY2025; down 2 since FY2022.
25	The Regents of the University of Colorado 2 awardees Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$5,958,329	0.5%	Rank history: #28 in FY2021, #26 in FY2022, #35 in FY2024 and #28 in FY2025; up 1 since FY2022.
26	NCS Pearson Inc. 2 awardees Top agencies ED (Department of Education) VA (Department of Veterans Affairs)	$5,548,014	0.5%	Rank history: #26 in FY2021, #17 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
27	Wested Top agencies ED (Department of Education)	$5,538,206	0.5%	Rank history: not on the FY2021 list, #30 in FY2022, #31 in FY2024 and #36 in FY2025; up 3 since FY2022.
28	Insight Policy Research Inc Top agencies HHS (Department of Health and Human Services)	$5,514,174	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
29	Sri International Top agencies ED (Department of Education) NSF (National Science Foundation)	$5,494,135	0.5%	Rank history: #81 in FY2021, #28 in FY2022, #30 in FY2024 and #37 in FY2025; down 1 since FY2022.
30	Regents of the University of Michigan Top agencies HHS (Department of Health and Human Services)	$5,292,452	0.4%	Rank history: #23 in FY2021, #31 in FY2022, #34 in FY2024 and #23 in FY2025; up 1 since FY2022.
31	HP Enterprise Services LLC Through Peraton Inc. Top agencies DHRA (Defense Human Resources Activity) Army (Department of the Army)	$5,123,645	0.4%	Rank history: not on the FY2021 list, #27 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
32	Econometrica, Inc. Top agencies HHS (Department of Health and Human Services)	$5,040,670	0.4%	Rank history: #21 in FY2021, #32 in FY2022, #22 in FY2024 and #27 in FY2025; unchanged since FY2022.
33	University of Rochester Top agencies USAF (Department of the Air Force)	$4,817,000	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	Soar 365 Top agencies DLA (Defense Logistics Agency)	$4,691,562	0.4%	Rank history: not on the FY2021 list, #29 in FY2022, #29 in FY2024 and #21 in FY2025; down 5 since FY2022.
35	Actuarial Research Corporation Top agencies HHS (Department of Health and Human Services)	$4,551,741	0.4%	Rank history: #34 in FY2021, #35 in FY2022, #27 in FY2024 and #50 in FY2025; unchanged since FY2022.
36	Wayne State University Top agencies HHS (Department of Health and Human Services)	$3,942,188	0.3%	Rank history: #13 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 21 since FY2022.
37	The Washington University Top agencies HHS (Department of Health and Human Services)	$3,594,077	0.3%	Rank history: #82 in FY2021, not on the FY2022 list, #36 in FY2024 and not on the FY2025 list; up 74 since FY2022.
38	Berytech Foundation Top agencies USAID (US Agency for International Development)	$3,400,000	0.3%	Rank history: #33 in FY2021, #46 in FY2022, #23 in FY2024 and not on the FY2025 list; up 8 since FY2022.
39	Far Western Anthropological Research Group, Inc. Top agencies Navy (Department of the Navy) DOI (Department of the Interior)	$3,242,023	0.3%	Rank history: #32 in FY2021, #47 in FY2022, #25 in FY2024 and not on the FY2025 list; up 8 since FY2022.
40	Mckesson Specialty Health Pharmaceutical & Biotech Solutions LLC Top agencies HHS (Department of Health and Human Services)	$2,949,902	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
41	JJR Solutions LLC Top agencies USAF (Department of the Air Force)	$2,558,583	0.2%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and #33 in FY2025; new.
42	Insignia Health, LLC Top agencies HHS (Department of Health and Human Services)	$2,491,783	0.2%	Rank history: #41 in FY2021, #45 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
43	Toxcel LLC Top agencies DOT (Department of Transportation)	$2,316,142	0.2%	Rank history: #37 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
44	Human Resources Research Organization (Humrro) Top agencies Army (Department of the Army)	$2,300,409	0.2%	Rank history: #42 in FY2021, #57 in FY2022, not on the FY2024 list and #56 in FY2025; up 13 since FY2022.
45	Paleowest L.L.C. Top agencies USDA (Department of Agriculture) Navy (Department of the Navy) DOI (Department of the Interior)	$2,183,296	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	Stratevarious Inc. Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$2,168,103	0.2%	Rank history: #96 in FY2021, #53 in FY2022, #47 in FY2024 and #47 in FY2025; up 7 since FY2022.
47	Baron Public Affairs LLC Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$2,126,836	0.2%	Rank history: not on the FY2021 list, #70 in FY2022, #43 in FY2024 and #35 in FY2025; up 23 since FY2022.
48	Hacks / Hackers Top agencies NSF (National Science Foundation)	$1,999,816	0.2%	Rank history: #84 in FY2021, #39 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
49	Telemus Group LLC Top agencies WHS (DOD Washington Headquarters Service)	$1,955,179	0.2%	Rank history: #46 in FY2021, #61 in FY2022, #49 in FY2024 and #29 in FY2025; up 12 since FY2022.
50	Massachusetts Institute of Technology Top agencies HHS (Department of Health and Human Services)	$1,928,198	0.2%	Rank history: not on the FY2021 list, #6 in FY2022, #61 in FY2024 and not on the FY2025 list; down 44 since FY2022.
51	Atlantic Council of the United States, Inc. (The) Top agencies DTRA (Defense Threat Reduction Agency) OSD (Office of the Secretary of Defense)	$1,857,998	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, #64 in FY2024 and #74 in FY2025; up 39 since FY2022.
52	Dunlap and Associates, Inc. Top agencies DOT (Department of Transportation)	$1,830,110	0.2%	Rank history: #66 in FY2021, #18 in FY2022, #26 in FY2024 and not on the FY2025 list; down 34 since FY2022.
53	Louisiana State University Through Louisiana State University Health Sciences Center New Orleans Top agencies HHS (Department of Health and Human Services)	$1,820,024	0.2%	Rank history: #48 in FY2021, #55 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
54	Dobson Davanzo & Associates, LLC Top agencies HHS (Department of Health and Human Services)	$1,725,349	0.1%	Rank history: #39 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
55	BW Research Partnership Inc. Top agencies DOE (Department of Energy)	$1,651,898	0.1%	Rank history: #57 in FY2021, #58 in FY2022, #87 in FY2024 and #30 in FY2025; up 3 since FY2022.
56	Chestnut Health Systems Inc. Top agencies DOI (Department of the Interior)	$1,628,533	0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #46 in FY2024 and #54 in FY2025; up 38 since FY2022.
57	Nationwide Children'S Hospital Through Research Institute At Nationwide Children's Hospital Top agencies HHS (Department of Health and Human Services)	$1,575,555	0.1%	Rank history: #54 in FY2021, #75 in FY2022 and not on the FY2024–FY2025 lists; up 18 since FY2022.
58	ICF International, Inc. 2 awardees, including ICF Incorporated, L.L.C. Top agencies Army (Department of the Army)	$1,567,187	0.1%	Rank history: #53 in FY2021, #49 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
59	President and Fellows of Harvard College 2 awardees Top agencies VA (Department of Veterans Affairs)	$1,559,347	0.1%	Rank history: #87 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
60	Sanametrix Inc Top agencies ED (Department of Education)	$1,404,881	0.1%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2024 and #78 in FY2025; new.
61	Chickasaw Health Consulting, LLC Top agencies DOT (Department of Transportation)	$1,303,586	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2024 and #89 in FY2025; up 61 since FY2022.
62	Applied Earthworks, Inc. Top agencies USDA (Department of Agriculture)	$1,289,250	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	Dynamis, Inc. Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$1,286,186	0.1%	Rank history: #55 in FY2021, #64 in FY2022, #56 in FY2024 and #71 in FY2025; up 1 since FY2022.
64	Advanced LAN Techs Inc. Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$1,233,993	0.1%	Rank history: #88 in FY2021, #69 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
65	Auxilio Management Services Top agencies Army (Department of the Army)	$1,159,619	0.1%	Rank history: #85 in FY2021, not on the FY2022 list, #90 in FY2024 and not on the FY2025 list; up 49 since FY2022.
66	Ciri Development Corporation Through North Wind Resource Consulting LLC Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$1,123,094	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
67	State of California Controllers Office 3 awardees, including University of California, LOS Angeles, Department of Education California and University of California, San Diego Top agencies HHS (Department of Health and Human Services) ED (Department of Education) VA (Department of Veterans Affairs)	$1,107,575	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 76 since FY2022.
68	Espinoza Cultural Services LLC Top agencies Army (Department of the Army) DOI (Department of the Interior)	$1,054,297	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
69	Gartner, Inc. Through Personnel Decisions Research Institutes, LLC Top agencies Army (Department of the Army) DOT (Department of Transportation)	$1,020,498	0.1%	Rank history: #75 in FY2021, #67 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
70	Querium Corporation Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Charmtech Labs LLC Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021 list, #78 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
72	Gaiaxus LLC Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 87 since FY2022.
73	Sirius Thinking, Ltd Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 87 since FY2022.
74	Smart Girls HQ LLC Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 88 since FY2022.
75	Mndtrst Inc. Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 89 since FY2022.
76	2Sigma School Inc. Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 91 since FY2022.
77	Indelible Learning Inc. Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 91 since FY2022.
78	Scrible, Inc. Top agencies ED (Department of Education)	$1,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 91 since FY2022.
79	Fedwriters, Inc. Top agencies IMLS (The Institute of Museum and Library Services)	$998,044	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	Sos International LLC Through Exovera LLC Top agencies OSD (Office of the Secretary of Defense)	$995,208	0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2024 and not on the FY2025 list; new.
81	Chatham Communications JV, LLC Top agencies HHS (Department of Health and Human Services)	$977,983	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
82	Pro-Change Behavior Systems, Inc. Top agencies HHS (Department of Health and Human Services)	$905,897	0.1%	Rank history: not on the FY2021 list, #72 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
83	Acacia Heritage Consulting LLC Top agencies USDA (Department of Agriculture)	$883,104	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 51 since FY2022.
84	Human Services Research Institute Top agencies HHS (Department of Health and Human Services)	$825,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
85	Forward Solutions LLC Top agencies DHRA (Defense Human Resources Activity)	$787,514	0.1%	Rank history: #95 in FY2021, #76 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
86	Forge Group, LLC Top agencies OSD (Office of the Secretary of Defense)	$785,485	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Rockytech Ltd Top agencies NSF (National Science Foundation)	$750,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	University of Maryland, College Park Top agencies NSF (National Science Foundation)	$750,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2024 and #5 in FY2025; new.
89	Virginia TECH Applied Research Corp Top agencies NSF (National Science Foundation)	$749,921	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Mesur.io, Inc. Top agencies NSF (National Science Foundation)	$744,519	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Core Correctional Solutions, LLC Top agencies CSOSA (Court Services and Offender Supervision Agency)	$742,801	0.1%	Rank history: #79 in FY2021, not on the FY2022 list, not on the FY2024 list and #76 in FY2025; up 32 since FY2022.
92	The Commonwealth of Massachusetts 2 awardees, including Northeastern University and Massachusetts Department of Elementary & Secondary Education Top agencies Army (Department of the Army) ED (Department of Education)	$740,649	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 34 since FY2022.
93	Center for Strategic & International Studies Inc. Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$731,602	0.1%	Rank history: #63 in FY2021, not on the FY2022 list, #68 in FY2024 and #58 in FY2025; up 81 since FY2022.
94	Sentient Research Top agencies HHS (Department of Health and Human Services)	$726,898	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Guardian Defense Group, Inc. Top agencies Navy (Department of the Navy)	$721,164	0.1%	Rank history: not on the FY2021 list, #92 in FY2022, not on the FY2024 list and #72 in FY2025; down 3 since FY2022.
96	Brigham & Womens Hospital Inc 2 awardees, including The General Hospital Corporation Top agencies HHS (Department of Health and Human Services)	$711,517	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Pearson PLC Through NCS Pearson Inc. Top agencies ED (Department of Education)	$709,313	0.1%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2024 and #31 in FY2025; new.
98	Aptima Inc. Top agencies Army (Department of the Army)	$707,555	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 50 since FY2022.
99	Preusser Research Group, Inc. Top agencies DOT (Department of Transportation)	$703,261	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2024 and not on the FY2025 list; up 112 since FY2022.
100	JOS Group LLC Top agencies IMLS (The Institute of Museum and Library Services)	$694,598	0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2024 and #73 in FY2025; new.

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 $1.18 billion obligated before deobligations, so they never pass 100%.
• Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
• Fiscal year 2023 ran Oct 1, 2022 – Sep 30, 2023. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
• Rank changes compare with FY2022. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
• Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2022 takes the color of the rank change beside it.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers