Top 62 Contractors in PSC B537: Medical and Health Studies, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Advanced Regenerative Manufacturing Institute Inc. Top agencies HHS (Department of Health and Human Services)	$9,616,793	11.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
2	National Academy of Sciences Top agencies VA (Department of Veterans Affairs) OPM (Office of Personnel Management)	$9,387,359	11.4%	Rank history: #14 in FY2021, #8 in FY2022, #4 in FY2023, #7 in FY2024 and #5 in FY2025; up 15 since Aug 2024–Jul 2025.
3	Acumen LLC Top agencies HHS (Department of Health and Human Services)	$6,262,692	7.6%	Rank history: #5 in FY2021, #4 in FY2022, #3 in FY2023, #3 in FY2024 and #7 in FY2025; unchanged since Aug 2024–Jul 2025.
4	Iqvia Government Solutions Inc Top agencies HHS (Department of Health and Human Services)	$5,813,684	7.1%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #8 in FY2025; up 3 since Aug 2024–Jul 2025.
5	Titan Alpha LLC Top agencies VA (Department of Veterans Affairs)	$4,494,620	5.5%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; new, not ranked in Aug 2024–Jul 2025.
6	CVS Healthspire Payor & Life Sciences LLC Top agencies HHS (Department of Health and Human Services)	$4,439,747	5.4%	Rank history: #8 in FY2021, #9 in FY2022, #9 in FY2023, not on the FY2024 list and #4 in FY2025; up 8 since Aug 2024–Jul 2025.
7	Circles of Support, Inc. Top agencies VA (Department of Veterans Affairs)	$4,262,892	5.2%	Rank history: not on the FY2021–FY2024 lists and #14 in FY2025; new, not ranked in Aug 2024–Jul 2025.
8	Neuroflow Inc. Top agencies VA (Department of Veterans Affairs)	$3,923,480	4.8%	Rank history: not on the FY2021–FY2024 lists and #10 in FY2025; unchanged since Aug 2024–Jul 2025.
9	The ETS Sponsorship Program Top agencies VA (Department of Veterans Affairs)	$3,670,418	4.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
10	Televeda Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$3,504,669	4.3%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; unchanged since Aug 2024–Jul 2025.
11	Emory University Top agencies HHS (Department of Health and Human Services)	$2,686,922	3.3%	Rank history: #18 in FY2021, #18 in FY2022, #13 in FY2023, #10 in FY2024 and #18 in FY2025; up 7 since Aug 2024–Jul 2025.
12	Health Level Inc. Top agencies VA (Department of Veterans Affairs)	$2,271,811	2.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
13	The Chenega Corporation 2 awardees, including Chenega Enterprise Systems & Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$2,034,344	2.5%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023, not on the FY2024 list and #6 in FY2025; new, not ranked in Aug 2024–Jul 2025.
14	Metropolitan Medical LLC Top agencies DOJ (Department of Justice)	$1,750,610	2.1%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #12 in FY2025; down 3 since Aug 2024–Jul 2025.
15	Vanderbilt University Medical Center Top agencies HHS (Department of Health and Human Services)	$1,324,433	1.6%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and not on the FY2025 list; unchanged since Aug 2024–Jul 2025.
16	GBK Consultants LLC Top agencies DHA (Defense Health Agency)	$1,182,605	1.4%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; up 13 since Aug 2024–Jul 2025.
17	Guardian Defense Group, Inc. Top agencies Navy (Department of the Navy)	$1,157,432	1.4%	Rank history: #34 in FY2021, #23 in FY2022, #27 in FY2023, #25 in FY2024 and #17 in FY2025; up 10 since Aug 2024–Jul 2025.
18	University System of Maryland Through University of Maryland, Baltimore Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$1,091,680	1.3%	Rank history: #66 in FY2021, #57 in FY2022, not on the FY2023–FY2024 lists and #16 in FY2025; new, not ranked in Aug 2024–Jul 2025.
19	Kahuina Consulting LLC Top agencies HHS (Department of Health and Human Services)	$766,295	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
20	Onezero Solutions LLC Top agencies DHS (Department of Homeland Security)	$764,640	0.9%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2023, #26 in FY2024 and #15 in FY2025; down 7 since Aug 2024–Jul 2025.
21	Agisol LLC Top agencies HHS (Department of Health and Human Services)	$640,001	0.8%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023, #21 in FY2024 and #21 in FY2025; up 5 since Aug 2024–Jul 2025.
22	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$508,380	0.6%	Rank history: not on the FY2021 list, #11 in FY2022, #7 in FY2023, #11 in FY2024 and #25 in FY2025; up 51 since Aug 2024–Jul 2025.
23	Mipps, LLC Top agencies DHA (Defense Health Agency)	$432,961	0.5%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023, #4 in FY2024 and #3 in FY2025; down 19 since Aug 2024–Jul 2025.
24	Empower AI, Inc. Top agencies HHS (Department of Health and Human Services)	$356,677	0.4%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #2 in FY2025; down 22 since Aug 2024–Jul 2025.
25	Labstat International Inc. Top agencies HHS (Department of Health and Human Services)	$355,401	0.4%	Rank history: not on the FY2021 list, #14 in FY2022, #33 in FY2023, #22 in FY2024 and #30 in FY2025; unchanged since Aug 2024–Jul 2025.
26	Trustees of Indiana University Top agencies USAF (Department of the Air Force)	$336,115	0.4%	Rank history: #38 in FY2021, not on the FY2022–FY2024 lists and #26 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	American College of Medical Toxicology, Inc. Top agencies HHS (Department of Health and Human Services)	$312,108	0.4%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #41 in FY2025; up 14 since Aug 2024–Jul 2025.
28	Regal Products LLC Top agencies VA (Department of Veterans Affairs)	$301,854	0.4%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; unchanged since Aug 2024–Jul 2025.
29	University of Wisconsin System Top agencies HHS (Department of Health and Human Services)	$279,011	0.3%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; down 7 since Aug 2024–Jul 2025.
30	Veterans Healthcare Supply Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$273,750	0.3%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023, #40 in FY2024 and #37 in FY2025; up 14 since Aug 2024–Jul 2025.
31	Childrens Hospital Medical Center Top agencies HHS (Department of Health and Human Services)	$223,933	0.3%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023, #19 in FY2024 and #34 in FY2025; down 12 since Aug 2024–Jul 2025.
32	Harvard Pilgrim Health Care, Inc. Top agencies HHS (Department of Health and Human Services)	$219,335	0.3%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 31 since Aug 2024–Jul 2025.
33	Boston Medical Center Corporation Top agencies HHS (Department of Health and Human Services)	$218,269	0.3%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #36 in FY2025; up 9 since Aug 2024–Jul 2025.
34	University of Hawaii Systems Through University of Hawaii Top agencies HHS (Department of Health and Human Services)	$204,624	0.2%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023, not on the FY2024 list and #29 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	Johns Hopkins University Top agencies HHS (Department of Health and Human Services)	$187,939	0.2%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; new, not ranked in Aug 2024–Jul 2025.
36	Harvard College President & Fellows Of Through President and Fellows of Harvard College Top agencies VA (Department of Veterans Affairs)	$169,999	0.2%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and not on the FY2025 list; up 9 since Aug 2024–Jul 2025.
37	Duke University Top agencies HHS (Department of Health and Human Services)	$163,861	0.2%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2023, #15 in FY2024 and #40 in FY2025; down 25 since Aug 2024–Jul 2025.
38	Surgical & Medical Training Services LLC Top agencies Navy (Department of the Navy)	$149,995	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	28Bio, Inc. Top agencies HHS (Department of Health and Human Services)	$143,021	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
40	National Council for Prescription Drug Programs Inc. Top agencies HHS (Department of Health and Human Services)	$131,242	0.2%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; up 9 since Aug 2024–Jul 2025.
41	37 Military Hospital Top agencies Navy (Department of the Navy)	$95,887	0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023, #64 in FY2024 and #51 in FY2025; up 23 since Aug 2024–Jul 2025.
42	J29, Inc. Top agencies DOL (Department of Labor)	$89,206	0.1%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	Yale Univ Top agencies Navy (Department of the Navy)	$88,087	0.1%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #69 in FY2024 and #55 in FY2025; up 12 since Aug 2024–Jul 2025.
44	J.d. Power Top agencies VA (Department of Veterans Affairs)	$83,895	0.1%	Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and #47 in FY2025; up 13 since Aug 2024–Jul 2025.
45	The Vanderbilt University Top agencies HHS (Department of Health and Human Services)	$76,895	0.1%	Rank history: #41 in FY2021, #46 in FY2022, #49 in FY2023, not on the FY2024 list and #13 in FY2025; new, not ranked in Aug 2024–Jul 2025.
46	Grace Registry Services, LLC Top agencies VA (Department of Veterans Affairs)	$74,335	0.1%	Rank history: #53 in FY2021, #45 in FY2022, #47 in FY2023, #45 in FY2024 and #38 in FY2025; down 10 since Aug 2024–Jul 2025.
47	Trillamed LLC Top agencies VA (Department of Veterans Affairs)	$64,000	0.1%	Rank history: #87 in FY2021, not on the FY2022–FY2023 lists, #44 in FY2024 and #49 in FY2025; up 4 since Aug 2024–Jul 2025.
48	Vetdak LLC Top agencies DOI (Department of the Interior)	$61,277	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
49	The Trustees of Columbia University In the City of New York Top agencies HHS (Department of Health and Human Services)	$55,831	0.1%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and not on the FY2025 list; down 28 since Aug 2024–Jul 2025.
50	Probo Medical LLC Through Inform Diagnostics, Inc. Top agencies VA (Department of Veterans Affairs)	$51,240	0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; up 11 since Aug 2024–Jul 2025.
51	Neurologix Technologies, Inc. Top agencies Army (Department of the Army)	$50,750	0.1%	Rank history: #65 in FY2021, #63 in FY2022, #46 in FY2023, #60 in FY2024 and #54 in FY2025; up 11 since Aug 2024–Jul 2025.
52	Kaiser Foundation Hospitals Top agencies HHS (Department of Health and Human Services)	$44,018	0.1%	Rank history: not on the FY2021–FY2023 lists, #23 in FY2024 and #56 in FY2025; down 28 since Aug 2024–Jul 2025.
53	Eurofins EAG Materials Science LLC Top agencies Navy (Department of the Navy)	$38,700	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
54	Forces4Quality Northeast Ohio Top agencies VA (Department of Veterans Affairs)	$37,950	<0.1%	Rank history: not on the FY2021 list, #67 in FY2022, #63 in FY2023, #68 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
55	Aspire Therapy Services and Consultants, Inc. Top agencies DOJ (Department of Justice)	$37,178	<0.1%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; up 3 since Aug 2024–Jul 2025.
56	Press Ganey Associates LLC Top agencies HHS (Department of Health and Human Services)	$35,872	<0.1%	Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #57 in FY2025; up 10 since Aug 2024–Jul 2025.
57	William L. Miller Top agencies DOJ (Department of Justice)	$11,535	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
58	Partners Healthcare System Incorporated Through Brigham & Womens Hospital Inc. Top agencies VA (Department of Veterans Affairs)	$10,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023, #78 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
59	Laurus Systems Inc. Top agencies VA (Department of Veterans Affairs)	$8,366	<0.1%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #60 in FY2025; up 12 since Aug 2024–Jul 2025.
60	Veritext LLC Through Medical Evaluation Specialists, LLC Top agencies DOJ (Department of Justice)	$6,100	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
61	Spaark Inc Top agencies Navy (Department of the Navy)	$2,175	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
62	Spectrum Services Group Inc. Top agencies DOJ (Department of Justice)	$1,208	<0.1%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; down 27 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 $82 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. 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