Top 100 Contractors in PSC AJ11: General Science and Technology R&D Services; General Science and Technology; Basic Research, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Georgia TECH Research Corp 2 awardees, including Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$230,389,465	13.4%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023, #12 in FY2024 and #1 in FY2025; up 19 since Aug 2024–Jul 2025.
2	Georgia TECH Applied Research Corp 2 awardees, including Georgia TECH Research Corp Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$134,580,425	7.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
3	University System of Maryland 5 awardees, including University of Maryland, College Park, University of Maryland Baltimore County and University of Maryland Baltimore Top agencies NASA (National Aeronautics and Space Administration) OSD (Office of the Secretary of Defense) DARPA (Defense Advanced Research Projects Agency)	$79,379,003	4.6%	Rank history: #12 in FY2021, #19 in FY2022, #8 in FY2023, #40 in FY2024 and #2 in FY2025; new, not ranked in Aug 2024–Jul 2025.
4	Every Cure Inc. Top agencies HHS (Department of Health and Human Services)	$76,045,600	4.4%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
5	L3Harris Technologies, Inc. 3 awardees, including L3Harris Nexgen Communications LLC and L3Harris Linchpin Labs, Inc. Top agencies Navy (Department of the Navy)	$63,735,706	3.7%	Rank history: not on the FY2021 list, #58 in FY2022, #37 in FY2023, #8 in FY2024 and #4 in FY2025; up 2 since Aug 2024–Jul 2025.
6	The Mitre Corporation Top agencies DHS (Department of Homeland Security) GSA (General Services Administration)	$40,717,625	2.4%	Rank history: #1 in FY2021, #4 in FY2022, #2 in FY2023, #2 in FY2024 and #8 in FY2025; unchanged since Aug 2024–Jul 2025.
7	PD Systems, LLC Through Envision Innovative Solutions, Inc. Top agencies Army (Department of the Army)	$39,309,805	2.3%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; new, not ranked in Aug 2024–Jul 2025.
8	The Regents of the University of Colorado Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce) Army (Department of the Army)	$34,066,382	2.0%	Rank history: #5 in FY2021, #3 in FY2022, #5 in FY2023, #7 in FY2024 and #3 in FY2025; down 4 since Aug 2024–Jul 2025.
9	Southwest Research Institute Top agencies NASA (National Aeronautics and Space Administration) NRC (Nuclear Regulatory Commission)	$28,620,511	1.7%	Rank history: #22 in FY2021, #6 in FY2022, #23 in FY2023, #11 in FY2024 and #5 in FY2025; unchanged since Aug 2024–Jul 2025.
10	The University of Alabama In Huntsville Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$22,486,991	1.3%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; up 41 since Aug 2024–Jul 2025.
11	T2L, Inc. Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army) Navy (Department of the Navy)	$21,847,919	1.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
12	Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) DOS (Department of State)	$21,456,580	1.2%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; up 3 since Aug 2024–Jul 2025.
13	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Army (Department of the Army) Commerce (Department of Commerce)	$21,229,652	1.2%	Rank history: #7 in FY2021, #13 in FY2022, #20 in FY2023, #23 in FY2024 and #10 in FY2025; down 2 since Aug 2024–Jul 2025.
14	The Regents of the University of California Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$19,226,067	1.1%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; new, not ranked in Aug 2024–Jul 2025.
15	Civil-Military Innovation Institute Inc. Top agencies Army (Department of the Army)	$19,000,001	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
16	Bay Area Environmental Research Institute Top agencies NASA (National Aeronautics and Space Administration)	$18,697,745	1.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023, #15 in FY2024 and #15 in FY2025; up 1 since Aug 2024–Jul 2025.
17	Vecprobio Inc. Top agencies HHS (Department of Health and Human Services)	$16,304,480	0.9%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #25 in FY2025; down 5 since Aug 2024–Jul 2025.
18	Battelle Memorial Institute 2 awardees, including Battelle National Biodefense Institute, LLC Top agencies DHS (Department of Homeland Security) NSF (National Science Foundation) EPA (Environmental Protection Agency)	$15,436,805	0.9%	Rank history: #45 in FY2021, #10 in FY2022, #7 in FY2023, #18 in FY2024 and #27 in FY2025; up 28 since Aug 2024–Jul 2025.
19	University of Texas System 11 awardees, including University of Texas At Austin, University of Texas At Dallas and The University of Texas At San Antonio Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) Army (Department of the Army)	$15,426,577	0.9%	Rank history: #21 in FY2021, #17 in FY2022, #13 in FY2023, #48 in FY2024 and #12 in FY2025; up 334 since Aug 2024–Jul 2025.
20	Simventions Inc. Top agencies Army (Department of the Army)	$14,607,122	0.9%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; up 33 since Aug 2024–Jul 2025.
21	QED Systems LLC Top agencies Army (Department of the Army)	$13,640,050	0.8%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023, #57 in FY2024 and #36 in FY2025; up 17 since Aug 2024–Jul 2025.
22	Teradar, Inc. Top agencies Army (Department of the Army)	$11,835,088	0.7%	Rank history: not on the FY2021–FY2025 lists; up 273 since Aug 2024–Jul 2025.
23	Massachusetts Institute of Technology 2 awardees Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$11,342,749	0.7%	Rank history: #15 in FY2021, #12 in FY2022, #21 in FY2023, #17 in FY2024 and #14 in FY2025; down 10 since Aug 2024–Jul 2025.
24	University of Arizona Top agencies NASA (National Aeronautics and Space Administration)	$10,837,214	0.6%	Rank history: not on the FY2021 list, #59 in FY2022, #75 in FY2023, #22 in FY2024 and #9 in FY2025; down 16 since Aug 2024–Jul 2025.
25	University of Alaska Systems 3 awardees, including University of Alaska Fairbanks and University of Alaska Anchorage Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$10,826,292	0.6%	Rank history: #9 in FY2021, #7 in FY2022, #15 in FY2023, #19 in FY2024 and #21 in FY2025; up 50 since Aug 2024–Jul 2025.
26	Government of the United States 2 awardees, including Smithsonian Institution Top agencies NASA (National Aeronautics and Space Administration)	$10,351,636	0.6%	Rank history: #14 in FY2021, #21 in FY2022, #14 in FY2023, not on the FY2024 list and #16 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	Universities Space Research Association Top agencies NASA (National Aeronautics and Space Administration)	$10,232,473	0.6%	Rank history: #61 in FY2021, not on the FY2022 list, #93 in FY2023, #30 in FY2024 and #33 in FY2025; up 9 since Aug 2024–Jul 2025.
28	California Institute of Technology Top agencies NASA (National Aeronautics and Space Administration)	$9,465,711	0.6%	Rank history: #46 in FY2021, #37 in FY2022, #48 in FY2023, #42 in FY2024 and #13 in FY2025; down 12 since Aug 2024–Jul 2025.
29	Auburn University Top agencies DHS (Department of Homeland Security) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$9,432,337	0.5%	Rank history: #95 in FY2021, #22 in FY2022, not on the FY2023 list, #47 in FY2024 and #39 in FY2025; up 27 since Aug 2024–Jul 2025.
30	ICF International Inc. Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$9,345,010	0.5%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and #40 in FY2025; up 29 since Aug 2024–Jul 2025.
31	University of Florida Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$9,336,634	0.5%	Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2023 list, #49 in FY2024 and #29 in FY2025; up 4 since Aug 2024–Jul 2025.
32	University of Illinois 2 awardees Top agencies NASA (National Aeronautics and Space Administration) DHS (Department of Homeland Security) Army (Department of the Army)	$9,043,187	0.5%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; up 1 since Aug 2024–Jul 2025.
33	Regents of the University of Michigan Top agencies NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs) DOT (Department of Transportation)	$8,667,748	0.5%	Rank history: #34 in FY2021, #45 in FY2022, #36 in FY2023, #32 in FY2024 and #23 in FY2025; down 8 since Aug 2024–Jul 2025.
34	Sun Vectors, Inc. Top agencies HHS (Department of Health and Human Services)	$8,482,756	0.5%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; up 48 since Aug 2024–Jul 2025.
35	Trustees of the Colorado School of Mines Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$8,387,051	0.5%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023, not on the FY2024 list and #90 in FY2025; up 69 since Aug 2024–Jul 2025.
36	University of Washington Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$8,336,038	0.5%	Rank history: #68 in FY2021, #61 in FY2022, #34 in FY2023, #36 in FY2024 and not on the FY2025 list; down 5 since Aug 2024–Jul 2025.
37	Analytical Mechanics Associates Inc. Top agencies NASA (National Aeronautics and Space Administration)	$8,047,472	0.5%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #52 in FY2025; up 25 since Aug 2024–Jul 2025.
38	University of Hawaii Systems 3 awardees, including University of Hawaii Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$7,796,612	0.5%	Rank history: #32 in FY2021, #20 in FY2022, #24 in FY2023, not on the FY2024 list and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
39	Rector & Visitors of the University of Virginia Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$7,752,272	0.5%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and not on the FY2024–FY2025 lists; up 93 since Aug 2024–Jul 2025.
40	DLH Holdings Corp Through Social & Scientific Systems, Inc. Top agencies HHS (Department of Health and Human Services)	$7,576,545	0.4%	Rank history: #8 in FY2021, #9 in FY2022, #16 in FY2023, #29 in FY2024 and #35 in FY2025; down 13 since Aug 2024–Jul 2025.
41	San Jose State University Research Foundation Top agencies NASA (National Aeronautics and Space Administration)	$6,879,755	0.4%	Rank history: not on the FY2021 list, #63 in FY2022, #27 in FY2023, #26 in FY2024 and #31 in FY2025; down 19 since Aug 2024–Jul 2025.
42	Purvis Systems Incorporated Top agencies Navy (Department of the Navy)	$6,576,674	0.4%	Rank history: not on the FY2021–FY2023 lists, #90 in FY2024 and #56 in FY2025; up 30 since Aug 2024–Jul 2025.
43	Regents of the University of Minnesota Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) VA (Department of Veterans Affairs)	$6,058,608	0.4%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; down 1 since Aug 2024–Jul 2025.
44	Charles River Laboratories International Inc. Through Charles River Laboratories, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$5,950,948	0.3%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Aug 2024–Jul 2025.
45	Trustees of Boston University 2 awardees Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$5,941,514	0.3%	Rank history: #76 in FY2021, #46 in FY2022, #43 in FY2023, #50 in FY2024 and #22 in FY2025; down 21 since Aug 2024–Jul 2025.
46	The Pennsylvania State University Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$5,889,372	0.3%	Rank history: #19 in FY2021, #16 in FY2022, #25 in FY2023, #24 in FY2024 and #26 in FY2025; down 17 since Aug 2024–Jul 2025.
47	Carnegie-Mellon University 2 awardees Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$5,873,963	0.3%	Rank history: not on the FY2021 list, #11 in FY2022, #11 in FY2023, #3 in FY2024 and #37 in FY2025; down 44 since Aug 2024–Jul 2025.
48	Arizona State University Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$5,705,282	0.3%	Rank history: #31 in FY2021, #30 in FY2022, #33 in FY2023, #25 in FY2024 and not on the FY2025 list; down 9 since Aug 2024–Jul 2025.
49	Florida State University Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) Army (Department of the Army)	$5,628,426	0.3%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 319 since Aug 2024–Jul 2025.
50	Northrop Grumman Systems Corporation 3 awardees Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$5,397,200	0.3%	Rank history: #94 in FY2021, not on the FY2022–FY2023 lists, #64 in FY2024 and #42 in FY2025; up 11 since Aug 2024–Jul 2025.
51	Physical Sciences Inc. 2 awardees Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$5,319,642	0.3%	Rank history: #85 in FY2021, #72 in FY2022, #92 in FY2023, not on the FY2024 list and #85 in FY2025; up 83 since Aug 2024–Jul 2025.
52	University of California, LOS Angeles Top agencies NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs) Army (Department of the Army)	$5,308,532	0.3%	Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and #34 in FY2025; down 22 since Aug 2024–Jul 2025.
53	Cornell University Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$5,298,464	0.3%	Rank history: not on the FY2021 list, #31 in FY2022, #50 in FY2023, #52 in FY2024 and #49 in FY2025; new, not ranked in Aug 2024–Jul 2025.
54	Rochester Institute of Technology Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$5,275,039	0.3%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; up 104 since Aug 2024–Jul 2025.
55	Integration Innovation Inc. Top agencies Navy (Department of the Navy)	$5,171,719	0.3%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #100 in FY2025; up 59 since Aug 2024–Jul 2025.
56	The Washington University Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$5,081,145	0.3%	Rank history: #74 in FY2021, #33 in FY2022, #51 in FY2023, #37 in FY2024 and #45 in FY2025; down 8 since Aug 2024–Jul 2025.
57	The Trustees of Columbia University In the City of New York Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$5,057,352	0.3%	Rank history: #13 in FY2021, #18 in FY2022, #30 in FY2023, #4 in FY2024 and #20 in FY2025; down 52 since Aug 2024–Jul 2025.
58	Apollotech MSI Corp Top agencies Army (Department of the Army)	$5,016,980	0.3%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; up 27 since Aug 2024–Jul 2025.
59	Planetary Science Institute Top agencies NASA (National Aeronautics and Space Administration)	$4,873,493	0.3%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #62 in FY2025; up 9 since Aug 2024–Jul 2025.
60	Virginia Commonwealth University Health System Authority 2 awardees, including Virginia Polytechnic Institute & State University and Virginia State University Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$4,825,344	0.3%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023, #85 in FY2024 and #24 in FY2025; down 37 since Aug 2024–Jul 2025.
61	The George Mason University Instructional Foundation, Inc. Through George Mason University Top agencies NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs)	$4,727,263	0.3%	Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and #64 in FY2025; down 9 since Aug 2024–Jul 2025.
62	University Corporation for Atmospheric Research Top agencies NASA (National Aeronautics and Space Administration)	$4,681,634	0.3%	Rank history: #29 in FY2021, #25 in FY2022, #41 in FY2023, #45 in FY2024 and #41 in FY2025; down 19 since Aug 2024–Jul 2025.
63	Duke University Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services)	$4,603,231	0.3%	Rank history: #40 in FY2021, not on the FY2022–FY2024 lists and #57 in FY2025; up 29 since Aug 2024–Jul 2025.
64	GSI Environmental Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$4,450,582	0.3%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #82 in FY2025; up 13 since Aug 2024–Jul 2025.
65	Care Weather Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration)	$4,409,133	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	Case Western Reserve University Top agencies NASA (National Aeronautics and Space Administration)	$4,323,891	0.3%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 268 since Aug 2024–Jul 2025.
67	The University of Central Florida Board of Trustees Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$4,311,924	0.3%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #65 in FY2025; down 9 since Aug 2024–Jul 2025.
68	University of Wisconsin System Top agencies NASA (National Aeronautics and Space Administration)	$4,208,572	0.2%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; down 36 since Aug 2024–Jul 2025.
69	National Academy of Sciences Top agencies Army (Department of the Army) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$4,127,418	0.2%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023, #61 in FY2024 and not on the FY2025 list; up 88 since Aug 2024–Jul 2025.
70	New Rights Group, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$4,110,596	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71	Purdue University Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$4,082,015	0.2%	Rank history: #33 in FY2021, #90 in FY2022, #65 in FY2023, #84 in FY2024 and #48 in FY2025; down 27 since Aug 2024–Jul 2025.
72	Next Tier Concepts Inc Top agencies Army (Department of the Army) OSD (Office of the Secretary of Defense)	$3,865,466	0.2%	Rank history: not on the FY2021–FY2025 lists; up 118 since Aug 2024–Jul 2025.
73	Illinois Institute of Technology Through IIT Research Institute Top agencies HHS (Department of Health and Human Services)	$3,839,132	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	Colorado State University Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$3,613,089	0.2%	Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and #55 in FY2025; down 17 since Aug 2024–Jul 2025.
75	University System of New Hampshire Top agencies NASA (National Aeronautics and Space Administration)	$3,613,077	0.2%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; up 4 since Aug 2024–Jul 2025.
76	University of California San Diego Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$3,593,357	0.2%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #50 in FY2025; unchanged since Aug 2024–Jul 2025.
77	William Marsh Rice University Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$3,525,700	0.2%	Rank history: not on the FY2021–FY2025 lists; up 61 since Aug 2024–Jul 2025.
78	Clemson University Top agencies NASA (National Aeronautics and Space Administration)	$3,446,511	0.2%	Rank history: not on the FY2021–FY2025 lists; up 44 since Aug 2024–Jul 2025.
79	Inotiv, Inc. Through Integrated Laboratory Systems, LLC Top agencies HHS (Department of Health and Human Services)	$3,400,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
80	The Survice Engineering Company LLC Top agencies USAF (Department of the Air Force)	$3,341,155	0.2%	Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and not on the FY2025 list; up 37 since Aug 2024–Jul 2025.
81	The University of Iowa Top agencies NASA (National Aeronautics and Space Administration)	$3,167,383	0.2%	Rank history: not on the FY2021 list, #95 in FY2022, not on the FY2023 list, #82 in FY2024 and #54 in FY2025; down 18 since Aug 2024–Jul 2025.
82	Nevada System of Higher Education Board of Regents 3 awardees, including Board of Regents of Nevada System of Higher Education Top agencies NASA (National Aeronautics and Space Administration)	$3,074,922	0.2%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; up 73 since Aug 2024–Jul 2025.
83	Oregon State University Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$3,026,419	0.2%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; down 9 since Aug 2024–Jul 2025.
84	Woods Hole Oceanographic Institution Top agencies NASA (National Aeronautics and Space Administration)	$3,012,830	0.2%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, not on the FY2024 list and #92 in FY2025; up 17 since Aug 2024–Jul 2025.
85	Center for the Advancement of Science In Space, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,000,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86	The Aerospace Corporation Top agencies Commerce (Department of Commerce) NASA (National Aeronautics and Space Administration)	$2,970,939	0.2%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #72 in FY2025; down 20 since Aug 2024–Jul 2025.
87	Seti Institute Top agencies NASA (National Aeronautics and Space Administration)	$2,950,562	0.2%	Rank history: #41 in FY2021, #40 in FY2022, #42 in FY2023, #56 in FY2024 and #43 in FY2025; down 47 since Aug 2024–Jul 2025.
88	American Systems Corporation Top agencies Navy (Department of the Navy)	$2,910,774	0.2%	Rank history: #30 in FY2021, #8 in FY2022, #10 in FY2023, #6 in FY2024 and #17 in FY2025; down 70 since Aug 2024–Jul 2025.
89	Brown University Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$2,879,770	0.2%	Rank history: not on the FY2021 list, #97 in FY2022, #91 in FY2023, #81 in FY2024 and #73 in FY2025; down 20 since Aug 2024–Jul 2025.
90	Catholic University of America (The) Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$2,788,839	0.2%	Rank history: #88 in FY2021, not on the FY2022 list, #96 in FY2023, #97 in FY2024 and #77 in FY2025; up 10 since Aug 2024–Jul 2025.
91	Honeywell International Inc. 2 awardees Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce)	$2,776,811	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	The Ohio State University Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$2,695,980	0.2%	Rank history: #79 in FY2021, #67 in FY2022, not on the FY2023 list, #62 in FY2024 and #53 in FY2025; down 37 since Aug 2024–Jul 2025.
93	Trustees of Dartmouth College Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$2,688,970	0.2%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; up 4 since Aug 2024–Jul 2025.
94	Baylor University Top agencies NASA (National Aeronautics and Space Administration)	$2,685,568	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
95	Aarno Labs LLC Top agencies HHS (Department of Health and Human Services)	$2,622,466	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	Duality Technologies Inc. Top agencies HHS (Department of Health and Human Services)	$2,589,731	0.2%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and not on the FY2025 list; unchanged since Aug 2024–Jul 2025.
97	The Leland Stanford Junior University Top agencies NASA (National Aeronautics and Space Administration)	$2,586,903	0.2%	Rank history: #73 in FY2021, #70 in FY2022, #69 in FY2023, #71 in FY2024 and #63 in FY2025; down 24 since Aug 2024–Jul 2025.
98	Blue Marble Space Top agencies NASA (National Aeronautics and Space Administration)	$2,475,751	0.1%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; up 21 since Aug 2024–Jul 2025.
99	BAE Systems PLC Through BAE Systems Space & Mission Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$2,450,995	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; new, not ranked in Aug 2024–Jul 2025.
100	The University of Chicago Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$2,410,899	0.1%	Rank history: #58 in FY2021, #24 in FY2022, #32 in FY2023, #41 in FY2024 and #44 in FY2025; down 59 since Aug 2024–Jul 2025.

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 $1.72 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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