Top 74 Contractors in PSC AN13: Health R&D Services; Health Care Services; Experimental Development, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Siga Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$112,567,056	20.8%	Rank history: #6 in FY2022, #3 in FY2023, #2 in FY2024 and #2 in FY2025; up 3 since FY2020.
2	Resilience Government Services, Inc. Top agencies Army (Department of the Army)	$51,846,569	9.6%	Rank history: #84 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
3	Siemens Aktiengesellschaft Through Siemens Healthcare Diagnostics Inc. Top agencies HHS (Department of Health and Human Services)	$26,000,000	4.8%	Rank history: #58 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
4	Emergent Manufacturing Operations Baltimore LLC Top agencies HHS (Department of Health and Human Services)	$22,815,456	4.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
5	Venatorx Pharmaceuticals Inc. Top agencies HHS (Department of Health and Human Services)	$21,986,788	4.1%	Rank history: #13 in FY2022, #9 in FY2023, #23 in FY2024 and not on the FY2025 list; up 4 since FY2020.
6	Luminex Corp 4 awardees, including Diasorin Molecular, LLC, Diasorin S.P.A. and Diasorin Inc. Top agencies HHS (Department of Health and Human Services)	$18,321,416	3.4%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
7	Allucent Government Services (Us) LLC Top agencies Army (Department of the Army)	$17,944,221	3.3%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
8	Mayo Clinic Top agencies HHS (Department of Health and Human Services)	$17,509,398	3.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
9	Battelle Memorial Institute Top agencies HHS (Department of Health and Human Services)	$15,319,277	2.8%	Rank history: #16 in FY2022, #18 in FY2023, #14 in FY2024 and #4 in FY2025; up 7 since FY2020.
10	The Medicines Company 2 awardees Top agencies HHS (Department of Health and Human Services)	$14,999,842	2.8%	Rank history: #27 in FY2022, not on the FY2023 list, #15 in FY2024 and not on the FY2025 list; up 4 since FY2020.
11	Technical Resources International, Inc. Top agencies HHS (Department of Health and Human Services)	$13,179,409	2.4%	Rank history: #21 in FY2022, #27 in FY2023, #80 in FY2024 and #35 in FY2025; down 6 since FY2020.
12	Mesa Biotech Inc. Top agencies HHS (Department of Health and Human Services)	$12,991,595	2.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	Chembio Diagnostics Inc. Through Chembio Diagnostic Systems Inc. Top agencies HHS (Department of Health and Human Services)	$12,691,726	2.3%	Rank history: not on the FY2022–FY2025 lists; up 59 since FY2020.
14	Visby Medical, Inc. Top agencies HHS (Department of Health and Human Services)	$12,332,171	2.3%	Rank history: #8 in FY2022, #68 in FY2023, #41 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
15	Public Health Vaccines LLC Top agencies HHS (Department of Health and Human Services)	$12,294,690	2.3%	Rank history: #81 in FY2022, #35 in FY2023, #22 in FY2024 and #16 in FY2025; new, not ranked in FY2020.
16	Mako Medical Laboratories LLC Top agencies HHS (Department of Health and Human Services)	$11,700,000	2.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
17	Chrysalis Biotherapeutics, Inc. Top agencies HHS (Department of Health and Human Services)	$10,455,381	1.9%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; up 33 since FY2020.
18	Cerus Corporation Top agencies HHS (Department of Health and Human Services)	$9,550,000	1.8%	Rank history: #10 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
19	The Emmes Company, LLC Top agencies HHS (Department of Health and Human Services)	$7,862,653	1.5%	Rank history: #24 in FY2022, #24 in FY2023, #18 in FY2024 and #32 in FY2025; new, not ranked in FY2020.
20	Mapp Biopharmaceutical, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$6,519,379	1.2%	Rank history: #2 in FY2022, #7 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
21	Hologic, Inc. Top agencies HHS (Department of Health and Human Services)	$6,490,129	1.2%	Rank history: #9 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
22	Abbott Laboratories Top agencies Army (Department of the Army)	$5,707,771	1.1%	Rank history: #5 in FY2022, #71 in FY2023, not on the FY2024 list and #12 in FY2025; up 6 since FY2020.
23	Mbio Diagnostics Inc. Top agencies HHS (Department of Health and Human Services)	$5,654,478	1.0%	Rank history: not on the FY2022–FY2025 lists; up 48 since FY2020.
24	Nexelis Group Inc. Through Laboratories Nexelis Canada Inc. Top agencies HHS (Department of Health and Human Services)	$5,390,485	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	Emergent Biosolutions Inc. 4 awardees, including Emergent Product Development Gaithersburg Inc. and Emergent Virology, LLC Top agencies HHS (Department of Health and Human Services)	$4,959,705	0.9%	Rank history: not on the FY2022 list, #4 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2020.
26	Cincinnati Univ Of Top agencies Army (Department of the Army)	$4,427,503	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Ridgeback Biotherapeutics LP Top agencies HHS (Department of Health and Human Services)	$4,355,536	0.8%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
28	Basilea Pharmaceutica International AG Through Basilea Pharmaceutica International Ltd, Allschwil Top agencies HHS (Department of Health and Human Services)	$4,327,818	0.8%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; up 18 since FY2020.
29	Immunome, Inc. Top agencies Army (Department of the Army)	$4,297,626	0.8%	Rank history: not on the FY2022–FY2025 lists; down 9 since FY2020.
30	Rafa Laboratories Ltd Top agencies Army (Department of the Army)	$3,345,033	0.6%	Rank history: #50 in FY2022, #30 in FY2023, not on the FY2024 list and #70 in FY2025; up 21 since FY2020.
31	University of Pittsburgh - of the Commonwealth System of Higher Education Top agencies Army (Department of the Army)	$3,315,417	0.6%	Rank history: #22 in FY2022, #46 in FY2023, #38 in FY2024 and #23 in FY2025; down 10 since FY2020.
32	Altimmune, Inc. Top agencies HHS (Department of Health and Human Services)	$3,103,389	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	Senti Biosciences, Inc. Top agencies HHS (Department of Health and Human Services)	$1,999,993	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	Oculogica Inc. Top agencies Army (Department of the Army)	$1,999,986	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Kephera Diagnostics LLC Top agencies HHS (Department of Health and Human Services)	$1,999,961	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Johnson & Johnson 3 awardees, including Ortho-Clinical Diagnostics, Inc. and Janssen Research & Development, LLC Top agencies HHS (Department of Health and Human Services)	$1,904,682	0.4%	Rank history: #35 in FY2022, #20 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
37	Humanetics Corporation Top agencies HHS (Department of Health and Human Services)	$1,872,652	0.3%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
38	Health Research, Inc. Top agencies HHS (Department of Health and Human Services)	$1,846,478	0.3%	Rank history: #37 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
39	PPD Development L.P. Top agencies HHS (Department of Health and Human Services)	$1,422,550	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	CVS Health Corporation 2 awardees, including Coram LLC and CVS Healthspire Payor & Life Sciences LLC Top agencies HHS (Department of Health and Human Services)	$1,278,649	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	Cytovale Inc. Top agencies HHS (Department of Health and Human Services)	$1,186,179	0.2%	Rank history: #79 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
42	Nakamir Inc. Top agencies Army (Department of the Army)	$1,099,352	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Danaher Corporation Through Beckman Coulter Inc. Top agencies HHS (Department of Health and Human Services)	$944,317	0.2%	Rank history: #11 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
44	The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. Top agencies Army (Department of the Army)	$913,308	0.2%	Rank history: #90 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
45	Partner Therapeutics, Inc. Top agencies HHS (Department of Health and Human Services)	$751,123	0.1%	Rank history: not on the FY2022–FY2023 lists, #11 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
46	Xequel Bio, Inc. Top agencies HHS (Department of Health and Human Services)	$749,999	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Vxbiosciences, Inc. Top agencies HHS (Department of Health and Human Services)	$749,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	The Trustees of Columbia University In the City of New York Top agencies HHS (Department of Health and Human Services)	$749,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Bioaegis Therapeutics Inc. Top agencies HHS (Department of Health and Human Services)	$749,000	0.1%	Rank history: not on the FY2022 list, #16 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
50	President and Fellows of Harvard College Top agencies HHS (Department of Health and Human Services)	$749,000	0.1%	Rank history: not on the FY2022 list, #19 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
51	Medicinova, Inc. Top agencies HHS (Department of Health and Human Services)	$749,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Enalare Therapeutics Inc. Top agencies HHS (Department of Health and Human Services)	$749,000	0.1%	Rank history: #29 in FY2022, #94 in FY2023, #25 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
53	Access To Advanced Health Institute Top agencies HHS (Department of Health and Human Services)	$748,885	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	US Biologic, Inc. Top agencies HHS (Department of Health and Human Services)	$738,638	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Advanced Animal Diagnostics, Inc. Top agencies HHS (Department of Health and Human Services)	$733,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	The Charles Stark Draper Laboratory, Inc. Top agencies HHS (Department of Health and Human Services)	$719,000	0.1%	Rank history: not on the FY2022 list, #12 in FY2023, #21 in FY2024 and #72 in FY2025; new, not ranked in FY2020.
57	Laboratories Nexelis Canada Inc. Top agencies HHS (Department of Health and Human Services)	$712,859	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Dascena, Inc. Top agencies HHS (Department of Health and Human Services)	$706,534	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNO Top agencies HHS (Department of Health and Human Services)	$703,878	0.1%	Rank history: #91 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
60	Sentien Biotechnologies, Inc. Top agencies HHS (Department of Health and Human Services)	$686,622	0.1%	Rank history: #92 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
61	Perahealth Inc. Top agencies HHS (Department of Health and Human Services)	$686,462	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
62	Vivonics Inc. Top agencies Army (Department of the Army)	$597,798	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Heyl Chemisch-Pharmazeutische Fabrik GMBH & Co. KG Through Heyltex Corporation Top agencies HHS (Department of Health and Human Services)	$554,637	0.1%	Rank history: not on the FY2022–FY2025 lists; up 19 since FY2020.
64	Aidar Health, Inc. Top agencies HHS (Department of Health and Human Services)	$529,878	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Louisiana State University Through Pennington Biomedical Research Center Top agencies Army (Department of the Army)	$514,563	0.1%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
66	University of Tennessee Top agencies HHS (Department of Health and Human Services)	$378,839	0.1%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
67	Southern Research Institute Top agencies HHS (Department of Health and Human Services)	$213,441	<0.1%	Rank history: not on the FY2022–FY2024 lists and #99 in FY2025; down 38 since FY2020.
68	Arkansas University Of Through University of Arkansas for Medical Sciences Top agencies Army (Department of the Army)	$206,602	<0.1%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
69	Iowa Primary Care Association, Inc. Top agencies VA (Department of Veterans Affairs)	$194,290	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
70	Design Interactive, LLC Top agencies Army (Department of the Army)	$70,593	<0.1%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
71	Amgen Inc. Through Amgen USA Inc. Top agencies HHS (Department of Health and Human Services)	$49,115	<0.1%	Rank history: #1 in FY2022, #2 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
72	The University of Iowa Top agencies VA (Department of Veterans Affairs)	$39,567	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Elusys Therapeutics Inc. Top agencies HHS (Department of Health and Human Services)	$30,800	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	American Industrial Hygiene Association Top agencies Army (Department of the Army)	$11,775	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in 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 $542 million obligated before deobligations, so they never pass 100%.
• Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
• 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