Top 100 Contractors in PSC AN12: Health R&D Services; Health Care Services; Applied Research, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. Through Leidos Biomedical Research Inc. Top agencies HHS (Department of Health and Human Services)	$656,099,201	35.6%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	PPD Development LP 2 awardees Top agencies HHS (Department of Health and Human Services)	$141,829,819	7.7%	Rank history: not on the FY2021–FY2022 lists, #2 in FY2024 and #4 in FY2025; up 129 since FY2022.
3	Emergent Biosolutions Inc. 2 awardees, including Emergent Product Development Gaithersburg Inc. Top agencies HHS (Department of Health and Human Services)	$74,091,537	4.0%	Rank history: #1 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 262 since FY2022.
4	Duke University Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$65,215,672	3.5%	Rank history: #5 in FY2021, #2 in FY2022, #4 in FY2024 and #9 in FY2025; down 2 since FY2022.
5	Icahn School of Medicine at Mount Sinai Top agencies HHS (Department of Health and Human Services)	$45,267,106	2.5%	Rank history: #6 in FY2021, #7 in FY2022, #6 in FY2024 and #8 in FY2025; up 2 since FY2022.
6	The University of Chicago Top agencies HHS (Department of Health and Human Services)	$30,644,175	1.7%	Rank history: #15 in FY2021, #28 in FY2022, #32 in FY2024 and #41 in FY2025; up 22 since FY2022.
7	Seattle Children'S Hospital Top agencies HHS (Department of Health and Human Services)	$27,240,591	1.5%	Rank history: #10 in FY2021, #10 in FY2022, #7 in FY2024 and not on the FY2025 list; up 3 since FY2022.
8	ST Jude Children's Research Hospital Inc. Top agencies HHS (Department of Health and Human Services)	$24,878,217	1.3%	Rank history: #12 in FY2021, #19 in FY2022, #10 in FY2024 and #13 in FY2025; up 11 since FY2022.
9	State of California Controllers Office 8 awardees, including University of California, San Diego, The Regents of the University of California. San Francisco and University of California, LOS Angeles Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$23,549,519	1.3%	Rank history: #22 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
10	Meso Scale Diagnostics LLC Top agencies HHS (Department of Health and Human Services)	$23,234,896	1.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 300 since FY2022.
11	Sri International Top agencies HHS (Department of Health and Human Services)	$21,731,681	1.2%	Rank history: #11 in FY2021, #15 in FY2022, #12 in FY2024 and #12 in FY2025; up 4 since FY2022.
12	University of Mississippi Medical Center Top agencies HHS (Department of Health and Human Services)	$19,900,972	1.1%	Rank history: #24 in FY2021, #39 in FY2022, not on the FY2024 list and #45 in FY2025; up 27 since FY2022.
13	SNA International LLC Top agencies DHA (Defense Health Agency)	$19,491,264	1.1%	Rank history: not on the FY2021 list, #11 in FY2022, #9 in FY2024 and #7 in FY2025; down 2 since FY2022.
14	The Trustees of the University of Pennsylvania Top agencies HHS (Department of Health and Human Services)	$18,711,828	1.0%	Rank history: #16 in FY2021, #17 in FY2022, #19 in FY2024 and #28 in FY2025; up 3 since FY2022.
15	The Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$18,461,724	1.0%	Rank history: #7 in FY2021, #12 in FY2022, #14 in FY2024 and not on the FY2025 list; down 3 since FY2022.
16	University of Georgia Research Foundation, Inc. Top agencies HHS (Department of Health and Human Services)	$17,570,734	1.0%	Rank history: #14 in FY2021, #16 in FY2022, #18 in FY2024 and #17 in FY2025; unchanged since FY2022.
17	Biofire Defense LLC Through Advanced Bioscience Laboratories, Inc. Top agencies HHS (Department of Health and Human Services)	$16,728,653	0.9%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2024 and not on the FY2025 list; new.
18	Fred Hutchinson Cancer Center Top agencies HHS (Department of Health and Human Services)	$14,008,210	0.8%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2024 and #15 in FY2025; up 145 since FY2022.
19	Thermo Electron Corporation Through Fisher Bioservices Inc. Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) Army (Department of the Army)	$13,405,304	0.7%	Rank history: #13 in FY2021, #8 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
20	Resilience Government Services, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$13,214,109	0.7%	Rank history: #9 in FY2021, not on the FY2022 list, #16 in FY2024 and not on the FY2025 list; returned.
21	SANOFI Through Sanofi Vaccines US Inc. Top agencies HHS (Department of Health and Human Services)	$12,405,429	0.7%	Rank history: not on the FY2021 list, #37 in FY2022 and not on the FY2024–FY2025 lists; up 16 since FY2022.
22	The Emmes Company, LLC Top agencies HHS (Department of Health and Human Services)	$11,255,260	0.6%	Rank history: #28 in FY2021, #25 in FY2022, #23 in FY2024 and #30 in FY2025; up 3 since FY2022.
23	Emory University Top agencies HHS (Department of Health and Human Services)	$11,188,327	0.6%	Rank history: #25 in FY2021, #54 in FY2022, #27 in FY2024 and #22 in FY2025; up 31 since FY2022.
24	Technical Resources International, Inc. Top agencies HHS (Department of Health and Human Services)	$10,842,947	0.6%	Rank history: #19 in FY2021, #40 in FY2022, #5 in FY2024 and #3 in FY2025; up 16 since FY2022.
25	University of Montana System Through University of Montana Top agencies HHS (Department of Health and Human Services)	$10,575,733	0.6%	Rank history: not on the FY2021 list, #30 in FY2022, #43 in FY2024 and not on the FY2025 list; up 5 since FY2022.
26	University System of Maryland 3 awardees, including University of Maryland, Baltimore and University of Maryland Baltimore County Top agencies HHS (Department of Health and Human Services)	$10,213,833	0.6%	Rank history: #31 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 195 since FY2022.
27	University of North Carolina at Chapel Hill 2 awardees Top agencies HHS (Department of Health and Human Services)	$9,565,608	0.5%	Rank history: #30 in FY2021, #26 in FY2022, #20 in FY2024 and #27 in FY2025; down 1 since FY2022.
28	Shee Atika Enterprises LLC Top agencies USAF (Department of the Air Force)	$9,390,741	0.5%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2024 and #71 in FY2025; new.
29	Psychogenics Inc Top agencies HHS (Department of Health and Human Services)	$9,330,655	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	ST. Joseph Hospital Inc. Through National Jewish Health Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$9,061,956	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
31	President and Fellows of Harvard College Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$8,761,997	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
32	Aligos Therapeutics Inc. Top agencies HHS (Department of Health and Human Services)	$8,469,477	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	Glaxosmithkline LLC Top agencies HHS (Department of Health and Human Services)	$8,251,438	0.4%	Rank history: not on the FY2021 list, #9 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
34	Venatorx Pharmaceuticals Inc. Top agencies HHS (Department of Health and Human Services)	$8,055,932	0.4%	Rank history: #37 in FY2021, #23 in FY2022, #24 in FY2024 and not on the FY2025 list; down 11 since FY2022.
35	The Children's Hospital Corporation Top agencies HHS (Department of Health and Human Services)	$8,023,455	0.4%	Rank history: not on the FY2021 list, #36 in FY2022, #81 in FY2024 and #85 in FY2025; up 1 since FY2022.
36	UIC Parent Corporation Through Curia Global Inc. Top agencies HHS (Department of Health and Human Services)	$8,008,341	0.4%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and not on the FY2025 list; new.
37	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. and Dynport Vaccine Company LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DHA (Defense Health Agency)	$7,542,522	0.4%	Rank history: #23 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
38	Battelle Memorial Institute Top agencies HHS (Department of Health and Human Services)	$7,499,454	0.4%	Rank history: #46 in FY2021, #53 in FY2022, #17 in FY2024 and #26 in FY2025; up 15 since FY2022.
39	RHO Inc. Through Rho Federal Systems Division Inc. Top agencies HHS (Department of Health and Human Services)	$7,387,481	0.4%	Rank history: not on the FY2021 list, #29 in FY2022, #28 in FY2024 and not on the FY2025 list; down 10 since FY2022.
40	Trustees of Boston University Top agencies HHS (Department of Health and Human Services)	$7,006,867	0.4%	Rank history: #32 in FY2021, #34 in FY2022, #44 in FY2024 and #29 in FY2025; down 6 since FY2022.
41	The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. Top agencies DHA (Defense Health Agency)	$6,758,193	0.4%	Rank history: #4 in FY2021, #31 in FY2022, #26 in FY2024 and #24 in FY2025; down 10 since FY2022.
42	Health Decisions, Inc. Top agencies HHS (Department of Health and Human Services)	$6,617,656	0.4%	Rank history: #27 in FY2021, #35 in FY2022, #30 in FY2024 and #61 in FY2025; down 7 since FY2022.
43	University of Washington Top agencies HHS (Department of Health and Human Services)	$6,325,038	0.3%	Rank history: #33 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
44	Westat, Inc. Top agencies HHS (Department of Health and Human Services)	$6,196,782	0.3%	Rank history: #18 in FY2021, #5 in FY2022, #75 in FY2024 and #31 in FY2025; down 39 since FY2022.
45	Crestone, Inc. Top agencies HHS (Department of Health and Human Services)	$6,176,908	0.3%	Rank history: not on the FY2021 list, #18 in FY2022, #42 in FY2024 and #35 in FY2025; down 27 since FY2022.
46	Baruch S. Blumberg Institute Top agencies HHS (Department of Health and Human Services)	$5,493,876	0.3%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2024 and not on the FY2025 list; new.
47	Siemens Aktiengesellschaft Through Siemens Healthcare Diagnostics Inc. Top agencies HHS (Department of Health and Human Services)	$5,422,657	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
48	Oregon Health & Science University Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$5,398,497	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 202 since FY2022.
49	Eminent Services Corp Top agencies HHS (Department of Health and Human Services)	$5,201,652	0.3%	Rank history: #84 in FY2021, #69 in FY2022, #67 in FY2024 and #79 in FY2025; up 20 since FY2022.
50	Revagenix Inc. Top agencies HHS (Department of Health and Human Services)	$5,121,040	0.3%	Rank history: #57 in FY2021, #22 in FY2022, #13 in FY2024 and not on the FY2025 list; down 28 since FY2022.
51	Health Research, Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$5,091,129	0.3%	Rank history: not on the FY2021 list, #60 in FY2022, #82 in FY2024 and #48 in FY2025; up 9 since FY2022.
52	The University of Iowa Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$5,032,533	0.3%	Rank history: #35 in FY2021, #33 in FY2022, #41 in FY2024 and #50 in FY2025; down 19 since FY2022.
53	HP Enterprise Services LLC Through Peraton Inc. Top agencies HHS (Department of Health and Human Services)	$4,712,428	0.3%	Rank history: not on the FY2021 list, #57 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
54	Sorrento Therapeutics Inc. Top agencies HHS (Department of Health and Human Services)	$4,590,862	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
55	Versiti Blood Health, Inc. Top agencies DHA (Defense Health Agency)	$4,500,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
56	Applied Research Associates, Inc. Top agencies DHA (Defense Health Agency)	$4,332,659	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
57	Public Health Institute Top agencies HHS (Department of Health and Human Services)	$4,329,057	0.2%	Rank history: #39 in FY2021, #49 in FY2022, #49 in FY2024 and #43 in FY2025; down 8 since FY2022.
58	University of Southern California Top agencies HHS (Department of Health and Human Services)	$4,181,434	0.2%	Rank history: #41 in FY2021, #48 in FY2022, #53 in FY2024 and #49 in FY2025; down 10 since FY2022.
59	Auro Vaccines LLC Top agencies HHS (Department of Health and Human Services)	$4,095,421	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	Versatope Therapeutics Inc. Top agencies HHS (Department of Health and Human Services)	$4,002,853	0.2%	Rank history: #96 in FY2021, not on the FY2022 list, #70 in FY2024 and not on the FY2025 list; up 96 since FY2022.
61	Brigham & Womens Hospital Inc Through The General Hospital Corporation Top agencies USSOCOM (United States Special Operations Command)	$4,000,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Northwestern University 2 awardees Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$3,975,397	0.2%	Rank history: #20 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; down 18 since FY2022.
63	University of Texas System 3 awardees, including The Univeristy of Texas M.d. Anderson Cancer Center, University of Texas Medical Branch At Galveston and The University of Texas Southwestern Medical Center Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$3,925,242	0.2%	Rank history: #43 in FY2021, #71 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
64	Digital Infuzion, LLC Top agencies HHS (Department of Health and Human Services)	$3,804,343	0.2%	Rank history: #93 in FY2021, #55 in FY2022, #63 in FY2024 and not on the FY2025 list; down 9 since FY2022.
65	TDA Research, Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$3,799,999	0.2%	Rank history: not on the FY2021 list, #68 in FY2022, not on the FY2024 list and #47 in FY2025; up 3 since FY2022.
66	Compagnie Merieux Alliance Through Advanced Bioscience Laboratories, Inc. Top agencies HHS (Department of Health and Human Services)	$3,726,592	0.2%	Rank history: #45 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
67	Arisan Therapeutics Inc. Top agencies HHS (Department of Health and Human Services)	$3,692,037	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
68	Triton Systems, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$3,599,190	0.2%	Rank history: #54 in FY2021, #80 in FY2022, #54 in FY2024 and not on the FY2025 list; up 12 since FY2022.
69	Eveliqure Biotechnologies GMBH Top agencies HHS (Department of Health and Human Services)	$3,490,104	0.2%	Rank history: #100 in FY2021, not on the FY2022 list, not on the FY2024 list and #38 in FY2025; up 36 since FY2022.
70	Secretary of State Connecticut Through Department of Public Health Connecticut Top agencies HHS (Department of Health and Human Services)	$3,298,825	0.2%	Rank history: #53 in FY2021, #65 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
71	The Leland Stanford Junior University Top agencies HHS (Department of Health and Human Services)	$3,099,712	0.2%	Rank history: #74 in FY2021, #86 in FY2022, #71 in FY2024 and #81 in FY2025; up 15 since FY2022.
72	Wake Forest University Through Wake Forest University Health Sciences Top agencies HHS (Department of Health and Human Services)	$3,086,458	0.2%	Rank history: #71 in FY2021, #82 in FY2022, #66 in FY2024 and not on the FY2025 list; up 10 since FY2022.
73	CFD Research Corporation Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$3,085,106	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 35 since FY2022.
74	Montefiore Medical Center Through Albert Einstein College of Medicine Top agencies HHS (Department of Health and Human Services)	$3,049,060	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 222 since FY2022.
75	Zymeron Corporation Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$3,013,719	0.2%	Rank history: #94 in FY2021, not on the FY2022 list, #78 in FY2024 and not on the FY2025 list; up 91 since FY2022.
76	Perfusion Medical, Inc. Top agencies DHA (Defense Health Agency)	$2,986,773	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
77	La Jolla Institute for Immunology Top agencies HHS (Department of Health and Human Services)	$2,985,311	0.2%	Rank history: #44 in FY2021, #56 in FY2022, not on the FY2024 list and #97 in FY2025; down 21 since FY2022.
78	University of Kentucky Through The University of Kentucky Research Foundation Top agencies HHS (Department of Health and Human Services)	$2,977,241	0.2%	Rank history: #58 in FY2021, not on the FY2022 list, #84 in FY2024 and not on the FY2025 list; returned.
79	University of New Mexico Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$2,970,802	0.2%	Rank history: #61 in FY2021, #78 in FY2022, #80 in FY2024 and not on the FY2025 list; down 1 since FY2022.
80	Lundquist Institute for Biomedical Innovation At Harbor-Ucla Medical Center Top agencies HHS (Department of Health and Human Services)	$2,945,745	0.2%	Rank history: not on the FY2021 list, #79 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
81	Microbiotix, Inc. Top agencies HHS (Department of Health and Human Services)	$2,900,296	0.2%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2024 and #33 in FY2025; up 147 since FY2022.
82	Access To Advanced Health Institute Top agencies HHS (Department of Health and Human Services)	$2,826,392	0.2%	Rank history: not on the FY2021 list, #32 in FY2022, #29 in FY2024 and not on the FY2025 list; down 50 since FY2022.
83	Illinois Institute of Technology Through IIT Research Institute Top agencies HHS (Department of Health and Human Services)	$2,760,945	0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and not on the FY2025 list; up 84 since FY2022.
84	Chromologic LLC Top agencies HHS (Department of Health and Human Services)	$2,731,523	0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2024 and #60 in FY2025; up 57 since FY2022.
85	Tougaloo College Top agencies HHS (Department of Health and Human Services)	$2,677,149	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 41 since FY2022.
86	IDT Biologika GMBH Top agencies HHS (Department of Health and Human Services)	$2,598,203	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 89 since FY2022.
87	Regents of the University of Minnesota Top agencies HHS (Department of Health and Human Services)	$2,494,928	0.1%	Rank history: #50 in FY2021, #41 in FY2022 and not on the FY2024–FY2025 lists; down 46 since FY2022.
88	Bioqual, Inc. Top agencies HHS (Department of Health and Human Services)	$2,450,548	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 74 since FY2022.
89	The Research Foundation for the State University of New York 2 awardees Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$2,283,968	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 27 since FY2022.
90	Temple University-Of the Commonwealth System of Higher Education 2 awardees, including The Institute for Cancer Research Top agencies HHS (Department of Health and Human Services)	$2,237,029	0.1%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
91	Xequel Bio, Inc. Top agencies HHS (Department of Health and Human Services)	$2,131,855	0.1%	Rank history: #83 in FY2021, #70 in FY2022 and not on the FY2024–FY2025 lists; down 21 since FY2022.
92	Precision Bioservices Inc. Through Precision for Medicine, Inc. Top agencies HHS (Department of Health and Human Services)	$2,089,559	0.1%	Rank history: #62 in FY2021, #83 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
93	Jackson State University Top agencies HHS (Department of Health and Human Services)	$2,086,052	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 32 since FY2022.
94	Proteios Technology, Inc. Top agencies HHS (Department of Health and Human Services)	$2,049,979	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$2,029,852	0.1%	Rank history: #81 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 90 since FY2022.
96	Laulima Government Solutions, LLC Top agencies DHA (Defense Health Agency)	$2,014,879	0.1%	Rank history: #63 in FY2021, #46 in FY2022, not on the FY2024 list and #100 in FY2025; down 50 since FY2022.
97	Accelevir Diagnostics LLC Top agencies HHS (Department of Health and Human Services)	$2,000,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Florida Institute for Human & Machine Cognition Inc. Top agencies USAF (Department of the Air Force)	$1,981,008	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
99	University of Utah Top agencies HHS (Department of Health and Human Services)	$1,961,562	0.1%	Rank history: #48 in FY2021, #62 in FY2022, #55 in FY2024 and #55 in FY2025; down 37 since FY2022.
100	Portland VA Research Foundation, Inc. Top agencies HHS (Department of Health and Human Services)	$1,959,251	0.1%	Rank history: not on the FY2021 list, #97 in FY2022, not on the FY2024 list and #86 in FY2025; down 3 since FY2022.

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 $1.84 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