Top 100 Contractors in PSC AN12: Health R&D Services; Health Care Services; Applied Research, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Emergent Biosolutions Inc. 2 awardees, including Emergent Product Development Gaithersburg Inc. and Emergent Biosolutions Canada Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$400,607,606	24.3%	Rank history: not on the FY2022 list, #3 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
2	Leidos Holdings, Inc. 2 awardees, including Leidos Biomedical Research Inc. Top agencies HHS (Department of Health and Human Services)	$391,001,387	23.8%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 1 since FY2020.
3	Leidos Biomedical Research Inc. Top agencies HHS (Department of Health and Human Services)	$43,250,022	2.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
4	The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. Top agencies Army (Department of the Army)	$40,350,035	2.5%	Rank history: #31 in FY2022, #41 in FY2023, #26 in FY2024 and #24 in FY2025; up 5 since FY2020.
5	Duke University Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$38,877,942	2.4%	Rank history: #2 in FY2022, #4 in FY2023, #4 in FY2024 and #9 in FY2025; unchanged since FY2020.
6	Icahn School of Medicine at Mount Sinai Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$34,180,755	2.1%	Rank history: #7 in FY2022, #5 in FY2023, #6 in FY2024 and #8 in FY2025; up 4 since FY2020.
7	The Johns Hopkins University Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$33,471,742	2.0%	Rank history: #12 in FY2022, #15 in FY2023, #14 in FY2024 and not on the FY2025 list; unchanged since FY2020.
8	Just-Evotec Biologics Inc. Top agencies Army (Department of the Army)	$28,564,932	1.7%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
9	Resilience Government Services, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$24,915,220	1.5%	Rank history: not on the FY2022 list, #20 in FY2023, #16 in FY2024 and not on the FY2025 list; down 5 since FY2020.
10	Seattle Children'S Hospital Top agencies HHS (Department of Health and Human Services)	$23,992,384	1.5%	Rank history: #10 in FY2022, #7 in FY2023, #7 in FY2024 and not on the FY2025 list; up 6 since FY2020.
11	Sri International Top agencies HHS (Department of Health and Human Services)	$21,578,777	1.3%	Rank history: #15 in FY2022, #11 in FY2023, #12 in FY2024 and #12 in FY2025; up 3 since FY2020.
12	ST Jude Children's Research Hospital Inc. Top agencies HHS (Department of Health and Human Services)	$20,246,186	1.2%	Rank history: #19 in FY2022, #8 in FY2023, #10 in FY2024 and #13 in FY2025; up 1 since FY2020.
13	Thermo Electron Corporation Through Fisher Bioservices Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$17,987,825	1.1%	Rank history: #8 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
14	University of Georgia Research Foundation, Inc. Top agencies HHS (Department of Health and Human Services)	$17,861,588	1.1%	Rank history: #16 in FY2022, #16 in FY2023, #18 in FY2024 and #17 in FY2025; up 7 since FY2020.
15	The University of Chicago Top agencies HHS (Department of Health and Human Services)	$16,424,058	1.0%	Rank history: #28 in FY2022, #6 in FY2023, #32 in FY2024 and #41 in FY2025; up 4 since FY2020.
16	The Trustees of the University of Pennsylvania Top agencies HHS (Department of Health and Human Services)	$15,829,582	1.0%	Rank history: #17 in FY2022, #14 in FY2023, #19 in FY2024 and #28 in FY2025; up 21 since FY2020.
17	Fred Hutchinson Cancer Research Center Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$15,808,604	1.0%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; up 19 since FY2020.
18	Westat, Inc. Top agencies HHS (Department of Health and Human Services)	$14,509,929	0.9%	Rank history: #5 in FY2022, #44 in FY2023, #75 in FY2024 and #31 in FY2025; unchanged since FY2020.
19	Technical Resources International, Inc. Top agencies HHS (Department of Health and Human Services)	$11,516,896	0.7%	Rank history: #40 in FY2022, #24 in FY2023, #5 in FY2024 and #3 in FY2025; up 36 since FY2020.
20	Northwestern University 2 awardees Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$10,970,541	0.7%	Rank history: #44 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
21	PGI Holding Corporation Top agencies HHS (Department of Health and Human Services)	$10,891,025	0.7%	Rank history: #20 in FY2022 and not on the FY2023–FY2025 lists; up 9 since FY2020.
22	State of California Controllers Office 5 awardees, including The Regents of the University of California. San Francisco, San Diego State University Foundation and University of California, LOS Angeles Top agencies HHS (Department of Health and Human Services)	$9,819,716	0.6%	Rank history: #21 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
23	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. and Dynport Vaccine Company LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$9,739,909	0.6%	Rank history: #27 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2020.
24	University of Mississippi Medical Center Top agencies HHS (Department of Health and Human Services)	$9,053,849	0.5%	Rank history: #39 in FY2022, #12 in FY2023, not on the FY2024 list and #45 in FY2025; up 5 since FY2020.
25	Emory University Top agencies HHS (Department of Health and Human Services)	$8,873,315	0.5%	Rank history: #54 in FY2022, #23 in FY2023, #27 in FY2024 and #22 in FY2025; down 13 since FY2020.
26	President and Fellows of Harvard College Top agencies HHS (Department of Health and Human Services)	$8,747,706	0.5%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
27	Health Decisions, Inc. Top agencies HHS (Department of Health and Human Services)	$8,632,839	0.5%	Rank history: #35 in FY2022, #42 in FY2023, #30 in FY2024 and #61 in FY2025; up 72 since FY2020.
28	The Emmes Company, LLC Top agencies HHS (Department of Health and Human Services)	$7,239,981	0.4%	Rank history: #25 in FY2022, #22 in FY2023, #23 in FY2024 and #30 in FY2025; down 3 since FY2020.
29	Gilead Sciences Inc. Top agencies Army (Department of the Army)	$6,996,549	0.4%	Rank history: #14 in FY2022 and not on the FY2023–FY2025 lists; up 122 since FY2020.
30	University of North Carolina at Chapel Hill 2 awardees Top agencies HHS (Department of Health and Human Services)	$6,718,366	0.4%	Rank history: #26 in FY2022, #27 in FY2023, #20 in FY2024 and #27 in FY2025; down 4 since FY2020.
31	University System of Maryland 3 awardees, including University of Maryland, Baltimore and University of Maryland Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) VA (Department of Veterans Affairs)	$6,260,221	0.4%	Rank history: not on the FY2022 list, #26 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
32	Trustees of Boston University Top agencies HHS (Department of Health and Human Services)	$6,255,508	0.4%	Rank history: #34 in FY2022, #40 in FY2023, #44 in FY2024 and #29 in FY2025; up 65 since FY2020.
33	University of Washington Top agencies HHS (Department of Health and Human Services)	$6,199,307	0.4%	Rank history: #43 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; up 17 since FY2020.
34	Sunflower Therapeutics PBC Top agencies Army (Department of the Army)	$5,614,646	0.3%	Rank history: not on the FY2022–FY2025 lists; up 38 since FY2020.
35	The University of Iowa Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Army (Department of the Army)	$5,538,802	0.3%	Rank history: #33 in FY2022, #52 in FY2023, #41 in FY2024 and #50 in FY2025; up 21 since FY2020.
36	Albany Molecular Research Inc. Through Curia Global Inc. Top agencies HHS (Department of Health and Human Services)	$4,840,546	0.3%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
37	Venatorx Pharmaceuticals Inc. Top agencies HHS (Department of Health and Human Services)	$4,415,124	0.3%	Rank history: #23 in FY2022, #34 in FY2023, #24 in FY2024 and not on the FY2025 list; down 2 since FY2020.
38	Physiq, Inc. Top agencies HHS (Department of Health and Human Services)	$4,338,693	0.3%	Rank history: not on the FY2022–FY2025 lists; up 44 since FY2020.
39	Public Health Institute Top agencies HHS (Department of Health and Human Services)	$4,337,452	0.3%	Rank history: #49 in FY2022, #57 in FY2023, #49 in FY2024 and #43 in FY2025; up 14 since FY2020.
40	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies HHS (Department of Health and Human Services)	$4,241,580	0.3%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
41	University of Southern California Top agencies HHS (Department of Health and Human Services)	$4,182,662	0.3%	Rank history: #48 in FY2022, #58 in FY2023, #53 in FY2024 and #49 in FY2025; up 6 since FY2020.
42	International Business Machines Corporation Top agencies HHS (Department of Health and Human Services)	$4,135,490	0.3%	Rank history: not on the FY2022–FY2025 lists; up 94 since FY2020.
43	University of Texas System 2 awardees, including The Univeristy of Texas M.d. Anderson Cancer Center and The University of Texas Southwestern Medical Center Top agencies HHS (Department of Health and Human Services)	$3,877,315	0.2%	Rank history: #71 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 48 since FY2020.
44	La Jolla Institute for Immunology Top agencies HHS (Department of Health and Human Services)	$3,843,976	0.2%	Rank history: #56 in FY2022, #77 in FY2023, not on the FY2024 list and #97 in FY2025; up 13 since FY2020.
45	Compagnie Merieux Alliance Through Advanced Bioscience Laboratories, Inc. Top agencies HHS (Department of Health and Human Services)	$3,735,216	0.2%	Rank history: #58 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2020.
46	Battelle Memorial Institute Top agencies HHS (Department of Health and Human Services)	$3,434,005	0.2%	Rank history: #53 in FY2022, #38 in FY2023, #17 in FY2024 and #26 in FY2025; down 35 since FY2020.
47	University of Illinois Top agencies HHS (Department of Health and Human Services)	$3,228,044	0.2%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 33 since FY2020.
48	University of Utah Top agencies HHS (Department of Health and Human Services)	$3,204,990	0.2%	Rank history: #62 in FY2022, #99 in FY2023, #55 in FY2024 and #55 in FY2025; down 15 since FY2020.
49	The University of Alabama System Through University of Alabama At Birmingham Top agencies HHS (Department of Health and Human Services)	$3,113,733	0.2%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
50	Regents of the University of Minnesota Top agencies HHS (Department of Health and Human Services)	$3,087,339	0.2%	Rank history: #41 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
51	Luna Innovations Incorporated Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$2,999,986	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Vignet Inc. Top agencies HHS (Department of Health and Human Services)	$2,927,659	0.2%	Rank history: not on the FY2022–FY2025 lists; up 70 since FY2020.
53	Secretary of State Connecticut Through Department of Public Health Connecticut Top agencies HHS (Department of Health and Human Services)	$2,901,669	0.2%	Rank history: #65 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
54	Triton Systems, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$2,899,516	0.2%	Rank history: #80 in FY2022, #68 in FY2023, #54 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
55	Entasis Therapeutics Inc Top agencies HHS (Department of Health and Human Services)	$2,887,773	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	University of Miami 2 awardees Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$2,849,076	0.2%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; up 25 since FY2020.
57	Revagenix Inc. Top agencies HHS (Department of Health and Human Services)	$2,731,729	0.2%	Rank history: #22 in FY2022, #50 in FY2023, #13 in FY2024 and not on the FY2025 list; up 9 since FY2020.
58	University of Kentucky Through The University of Kentucky Research Foundation Top agencies HHS (Department of Health and Human Services)	$2,715,923	0.2%	Rank history: not on the FY2022 list, #78 in FY2023, #84 in FY2024 and not on the FY2025 list; up 10 since FY2020.
59	Shee Atika Enterprises LLC Top agencies HHS (Department of Health and Human Services)	$2,711,605	0.2%	Rank history: not on the FY2022–FY2025 lists; up 69 since FY2020.
60	Albert Einstein College of Medicine Top agencies HHS (Department of Health and Human Services)	$2,681,568	0.2%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
61	University of New Mexico Top agencies HHS (Department of Health and Human Services)	$2,649,530	0.2%	Rank history: #78 in FY2022, #79 in FY2023, #80 in FY2024 and not on the FY2025 list; up 16 since FY2020.
62	Precision Bioservices Inc. Through Precision for Medicine, Inc. Top agencies HHS (Department of Health and Human Services)	$2,608,329	0.2%	Rank history: #83 in FY2022, #92 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
63	Laulima Government Solutions, LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$2,602,001	0.2%	Rank history: #46 in FY2022, #96 in FY2023, not on the FY2024 list and #100 in FY2025; up 159 since FY2020.
64	Greffex Inc. Top agencies HHS (Department of Health and Human Services)	$2,543,566	0.2%	Rank history: not on the FY2022–FY2025 lists; up 9 since FY2020.
65	Myelo Therapeutics GMBH Top agencies HHS (Department of Health and Human Services)	$2,519,309	0.2%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; up 27 since FY2020.
66	Acmg Foundation for Genetic and Genomic Medicine Top agencies HHS (Department of Health and Human Services)	$2,500,000	0.2%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
67	Meabco Inc. Top agencies HHS (Department of Health and Human Services)	$2,438,747	0.1%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; up 27 since FY2020.
68	Inimmune Corp Top agencies HHS (Department of Health and Human Services)	$2,435,261	0.1%	Rank history: not on the FY2022–FY2023 lists, #92 in FY2024 and not on the FY2025 list; up 25 since FY2020.
69	University of Oklahoma Top agencies HHS (Department of Health and Human Services)	$2,239,885	0.1%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; down 8 since FY2020.
70	Chromologic LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$2,194,705	0.1%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
71	Wake Forest University Through Wake Forest University Health Sciences Top agencies HHS (Department of Health and Human Services)	$2,179,152	0.1%	Rank history: #82 in FY2022, #72 in FY2023, #66 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
72	Aptive HTG LLC Top agencies VA (Department of Veterans Affairs)	$2,178,271	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	University of Wisconsin System 2 awardees Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$2,158,741	0.1%	Rank history: not on the FY2022–FY2025 lists; up 47 since FY2020.
74	The Leland Stanford Junior University Top agencies HHS (Department of Health and Human Services)	$2,050,375	0.1%	Rank history: #86 in FY2022, #71 in FY2023, #71 in FY2024 and #81 in FY2025; up 50 since FY2020.
75	Vetigenics LLC Top agencies HHS (Department of Health and Human Services)	$1,999,381	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Cell Microsystems Inc. Top agencies HHS (Department of Health and Human Services)	$1,997,803	0.1%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
77	Innovative Surface Technologies Inc. Top agencies HHS (Department of Health and Human Services)	$1,972,191	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Louisiana State University 2 awardees, including Louisiana State University Health Sciences Center New Orleans and Pennington Biomedical Research Center Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$1,947,901	0.1%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
79	University of Massachusetts Through University of Massachusetts Medical School Top agencies HHS (Department of Health and Human Services)	$1,900,401	0.1%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
80	Carnegie-Mellon University Top agencies Army (Department of the Army)	$1,849,395	0.1%	Rank history: not on the FY2022–FY2025 lists; up 55 since FY2020.
81	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$1,784,422	0.1%	Rank history: not on the FY2022 list, #95 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
82	The Washington University Top agencies HHS (Department of Health and Human Services)	$1,722,037	0.1%	Rank history: #63 in FY2022, not on the FY2023 list, #69 in FY2024 and #46 in FY2025; down 28 since FY2020.
83	Xequel Bio, Inc. Top agencies HHS (Department of Health and Human Services)	$1,693,749	0.1%	Rank history: #70 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
84	Eminent Services Corp Top agencies HHS (Department of Health and Human Services)	$1,618,899	0.1%	Rank history: #69 in FY2022, #49 in FY2023, #67 in FY2024 and #79 in FY2025; up 12 since FY2020.
85	International Aids Vaccine Initiative Inc. Top agencies HHS (Department of Health and Human Services)	$1,614,027	0.1%	Rank history: #52 in FY2022, not on the FY2023 list, #86 in FY2024 and #52 in FY2025; up 40 since FY2020.
86	The Trustees of Columbia University In the City of New York 2 awardees Top agencies HHS (Department of Health and Human Services)	$1,588,593	0.1%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
87	University of Hawaii Systems Through University of Hawaii Top agencies HHS (Department of Health and Human Services)	$1,576,288	0.1%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
88	Yale Univ 2 awardees, including Yale University Top agencies VA (Department of Veterans Affairs)	$1,555,873	0.1%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; up 130 since FY2020.
89	Clear Scientific, LLC Top agencies Army (Department of the Army)	$1,531,345	0.1%	Rank history: not on the FY2022–FY2025 lists; up 42 since FY2020.
90	Icrypto Inc. Top agencies HHS (Department of Health and Human Services)	$1,524,610	0.1%	Rank history: not on the FY2022–FY2025 lists; up 113 since FY2020.
91	Idbiologics Inc. Top agencies HHS (Department of Health and Human Services)	$1,499,394	0.1%	Rank history: not on the FY2022–FY2025 lists; up 107 since FY2020.
92	Painqx Inc. Top agencies Army (Department of the Army)	$1,493,151	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Digital Infuzion, LLC Top agencies HHS (Department of Health and Human Services)	$1,473,868	0.1%	Rank history: #55 in FY2022, #64 in FY2023, #63 in FY2024 and not on the FY2025 list; up 17 since FY2020.
94	Zymeron Corporation Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$1,449,987	0.1%	Rank history: not on the FY2022 list, #75 in FY2023, #78 in FY2024 and not on the FY2025 list; up 36 since FY2020.
95	University of Alabama At Birmingham Top agencies HHS (Department of Health and Human Services)	$1,431,631	0.1%	Rank history: not on the FY2022–FY2024 lists and #59 in FY2025; up 16 since FY2020.
96	Versatope Therapeutics Inc. Top agencies HHS (Department of Health and Human Services)	$1,394,127	0.1%	Rank history: not on the FY2022 list, #60 in FY2023, #70 in FY2024 and not on the FY2025 list; down 48 since FY2020.
97	State of Illinois Through Department of Public Health Illinois Top agencies HHS (Department of Health and Human Services)	$1,389,625	0.1%	Rank history: not on the FY2022–FY2023 lists, #93 in FY2024 and #87 in FY2025; new, not ranked in FY2020.
98	Rutgers, the State University Through Rutgers, the State University of New Jersey Top agencies HHS (Department of Health and Human Services)	$1,339,411	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Thomas Jefferson University Top agencies HHS (Department of Health and Human Services)	$1,272,259	0.1%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; down 55 since FY2020.
100	Eveliqure Biotechnologies GMBH Top agencies HHS (Department of Health and Human Services)	$1,244,544	0.1%	Rank history: not on the FY2022 list, #69 in FY2023, not on the FY2024 list and #38 in FY2025; up 111 since FY2020.

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 $1.65 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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