Top 100 Contractors in PSC Q: Medical Services, FY2025

Name: Top 100 Contractors in PSC Q: Medical Services, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 80% of FY2025 PSC Q contract dollars

Contract obligations: $53,506,867,353 Net of deobligations, by contracts coded PSC Q or a code under it
Contractors: 3,786 Parent companies with an obligation
Largest contractor: UnitedHealth Group Incorporated $25.1 billion, 44.9% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	UnitedHealth Group Incorporated 9 awardees, including Optum Public Sector Solutions, Inc., Optumserve Health Services, Inc. and Optumhealth Care Solutions, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$25,055,128,015	44.9%	Rank history: #1 in FY2021, #5 in FY2022, #5 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Humana Government Business Inc. Top agencies DHA (Defense Health Agency)	$6,513,706,427	11.7%	Rank history: #33 in FY2021, not on the FY2022–FY2023 lists and #2 in FY2024; unchanged since FY2024.
3	Triwest Healthcare Alliance Corp Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$3,884,363,171	7.0%	Rank history: #4 in FY2021, #13 in FY2022, #14 in FY2023 and #12 in FY2024; up 9 since FY2024.
4	Leidos Holdings, Inc. Through QTC Medical Services Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) DOI (Department of the Interior)	$2,775,770,933	5.0%	Rank history: #6 in FY2021, #6 in FY2022, #4 in FY2023 and #6 in FY2024; up 2 since FY2024.
5	Maximus Federal Services, Inc. 2 awardees, including Veterans Evaluation Services, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,034,602,251	3.6%	Rank history: not on the FY2021–FY2024 lists; up 336 since FY2024.
6	Health Net Federal Services, LLC Top agencies DHA (Defense Health Agency)	$1,427,302,715	2.6%	Rank history: not on the FY2021 list, #9 in FY2022, #13 in FY2023 and #5 in FY2024; down 1 since FY2024.
7	Loyal Source Government Services LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) DHA (Defense Health Agency)	$898,636,629	1.6%	Rank history: #18 in FY2021, #22 in FY2022, #11 in FY2023 and #9 in FY2024; up 2 since FY2024.
8	NNA Inc. 7 awardees, including Fresenius Medical Care Holdings Inc., Dialysis Clinic, Inc. and RSA - Guam LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$693,193,307	1.2%	Rank history: not on the FY2021–FY2024 lists; new.
9	Express Scripts Inc 2 awardees, including Priority Healthcare Distribution Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$561,143,055	1.0%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2023 and #10 in FY2024; up 1 since FY2024.
10	Davita Inc. 9 awardees, including Renal Treatment Centers - West, Inc., Total Renal Care Inc. and Renal Treatment Centers-Mid-Atlantic Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$536,028,127	1.0%	Rank history: #15 in FY2021, #16 in FY2022, #15 in FY2023 and not on the FY2024 list; returned.
11	Johns Hopkins University 4 awardees, including The Johns Hopkins Medical Services Corporation and The Johns Hopkins Hospital Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$486,283,102	0.9%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; up 5 since FY2024.
12	Martins Point Health Care Inc. Top agencies DHA (Defense Health Agency)	$426,584,291	0.8%	Rank history: #9 in FY2021, #12 in FY2022, #9 in FY2023 and #11 in FY2024; down 1 since FY2024.
13	United Concordia Companies, Inc. Top agencies DHA (Defense Health Agency)	$401,262,528	0.7%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2024; up 4 since FY2024.
14	KBR Wyle Services LLC 2 awardees, including KBR Services, LLC Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) DOS (Department of State)	$181,638,439	0.3%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; up 15 since FY2024.
15	Pacmed Clinics Top agencies DHA (Defense Health Agency)	$173,230,175	0.3%	Rank history: #22 in FY2021, #19 in FY2022, #17 in FY2023 and #20 in FY2024; up 5 since FY2024.
16	International Sos Government Services LLC Top agencies DHA (Defense Health Agency) Navy (Department of the Navy) DODEA (Department of Defense Education Activity)	$173,068,578	0.3%	Rank history: #30 in FY2021, #28 in FY2022, #19 in FY2023 and #21 in FY2024; up 5 since FY2024.
17	Naphcare LLC Top agencies DOJ (Department of Justice)	$159,792,513	0.3%	Rank history: #27 in FY2021, #25 in FY2022, #21 in FY2023 and #23 in FY2024; up 6 since FY2024.
18	Brighton Marine, Inc. Top agencies DHA (Defense Health Agency)	$154,216,876	0.3%	Rank history: #25 in FY2021, #23 in FY2022, #18 in FY2023 and #22 in FY2024; up 4 since FY2024.
19	Christus Health 2 awardees Top agencies DHA (Defense Health Agency)	$148,479,458	0.3%	Rank history: #28 in FY2021, #26 in FY2022, #20 in FY2023 and #24 in FY2024; up 5 since FY2024.
20	Valor Healthcare Inc. Top agencies VA (Department of Veterans Affairs)	$147,990,862	0.3%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2024 list; up 208 since FY2024.
21	Laboratory Corporation of America 8 awardees, including Center for Disease Detection, LLC, Esoterix Genetic Laboratories LLC and Bode Cellmark Forensics, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$141,197,036	0.3%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #28 in FY2024; up 7 since FY2024.
22	Svcmc, Inc. Top agencies DHA (Defense Health Agency)	$125,970,109	0.2%	Rank history: #29 in FY2021, #31 in FY2022, #25 in FY2023 and #25 in FY2024; up 3 since FY2024.
23	Enterprise Resource Planning International, LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$118,961,728	0.2%	Rank history: #41 in FY2021, #38 in FY2022, #29 in FY2023 and #30 in FY2024; up 7 since FY2024.
24	Heritage Health Solutions, Inc. 2 awardees Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$115,502,752	0.2%	Rank history: #32 in FY2021, not on the FY2022 list, #27 in FY2023 and not on the FY2024 list; returned.
25	Superior Health Quality Alliance Inc. Top agencies HHS (Department of Health and Human Services)	$91,742,738	0.2%	Rank history: not on the FY2021 list, #76 in FY2022 and not on the FY2023–FY2024 lists; returned.
26	American Medical Response Inc. 2 awardees, including American Medical Response West Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$87,214,273	0.2%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; unchanged since FY2024.
27	Health Services Advisory Group, Inc. Top agencies HHS (Department of Health and Human Services)	$81,791,960	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
28	Decypher Technologies Ltd Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) Army (Department of the Army)	$79,031,392	0.1%	Rank history: #86 in FY2021, #82 in FY2022, #69 in FY2023 and #39 in FY2024; up 11 since FY2024.
29	Wellpath LLC Top agencies DOJ (Department of Justice)	$78,862,659	0.1%	Rank history: #56 in FY2021, #57 in FY2022, #35 in FY2023 and #34 in FY2024; up 5 since FY2024.
30	TMF Health Quality Institute Top agencies HHS (Department of Health and Human Services)	$76,997,364	0.1%	Rank history: not on the FY2021 list, #54 in FY2022 and not on the FY2023–FY2024 lists; returned.
31	Health Quality Innovators Top agencies HHS (Department of Health and Human Services)	$76,635,445	0.1%	Rank history: not on the FY2021 list, #96 in FY2022 and not on the FY2023–FY2024 lists; returned.
32	STG International, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$75,318,169	0.1%	Rank history: #26 in FY2021, #18 in FY2022, #16 in FY2023 and #19 in FY2024; down 13 since FY2024.
33	Seven Corners Inc. Top agencies DOJ (Department of Justice)	$73,726,335	0.1%	Rank history: #44 in FY2021, #44 in FY2022, #38 in FY2023 and #37 in FY2024; up 4 since FY2024.
34	Telligen, Inc. Top agencies HHS (Department of Health and Human Services)	$73,063,177	0.1%	Rank history: not on the FY2021 list, #78 in FY2022 and not on the FY2023–FY2024 lists; returned.
35	Dilligas Corp Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$70,254,361	0.1%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #32 in FY2024; down 3 since FY2024.
36	The Arora Group, Inc. Top agencies DHS (Department of Homeland Security) DHA (Defense Health Agency) USAF (Department of the Air Force)	$61,804,313	0.1%	Rank history: #46 in FY2021, #35 in FY2022, #36 in FY2023 and #40 in FY2024; up 4 since FY2024.
37	Magnificus Corporation Top agencies DHA (Defense Health Agency)	$59,427,696	0.1%	Rank history: #52 in FY2021, #51 in FY2022, #32 in FY2023 and #50 in FY2024; up 13 since FY2024.
38	Roche Holdings Inc. 2 awardees, including Foundation Medicine, Inc. and Roche Diagnostics Corporation Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$51,209,129	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
39	University of Massachusetts 2 awardees, including University of Massachusetts Medical School and Umass Memorial Medical Group, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$49,254,218	0.1%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 5 since FY2024.
40	American Renal Associates LLC Top agencies VA (Department of Veterans Affairs)	$49,183,671	0.1%	Rank history: #96 in FY2021 and not on the FY2022–FY2024 lists; returned.
41	US Renal Care Inc. Top agencies VA (Department of Veterans Affairs)	$48,976,532	0.1%	Rank history: #91 in FY2021, #86 in FY2022, #77 in FY2023 and not on the FY2024 list; returned.
42	Icahn School of Medicine At Mount Sinai Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$48,767,921	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
43	Matrix Providers Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$48,465,355	0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; up 6 since FY2024.
44	Spectrum Services Group Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) DOJ (Department of Justice)	$47,249,928	0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and #38 in FY2024; down 6 since FY2024.
45	Ansible Government Solutions LLC Top agencies VA (Department of Veterans Affairs)	$46,740,667	0.1%	Rank history: #64 in FY2021, #68 in FY2022, #39 in FY2023 and #42 in FY2024; down 3 since FY2024.
46	Luke & Associates Inc. Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$44,707,551	0.1%	Rank history: #31 in FY2021, #33 in FY2022, #31 in FY2023 and #35 in FY2024; down 11 since FY2024.
47	Quest Diagnostics Incorporated 5 awardees, including Ameripath Inc. and Quest Diagnostics of Puerto Rico Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DHA (Defense Health Agency)	$44,491,588	0.1%	Rank history: #23 in FY2021, #17 in FY2022, #22 in FY2023 and #31 in FY2024; down 16 since FY2024.
48	Akahi Ingenesis Partners LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) Army (Department of the Army)	$43,351,312	0.1%	Rank history: #70 in FY2021, #73 in FY2022, #61 in FY2023 and #58 in FY2024; up 10 since FY2024.
49	Acuity-Chs, LLC Top agencies DHS (Department of Homeland Security) DHRA (Defense Human Resources Activity) DOI (Department of the Interior)	$42,599,604	0.1%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 7 since FY2024.
50	Comagine Health Top agencies HHS (Department of Health and Human Services)	$42,423,711	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
51	Tribal Health, LLC Top agencies HHS (Department of Health and Human Services)	$42,057,000	0.1%	Rank history: #62 in FY2021, #49 in FY2022, #48 in FY2023 and #48 in FY2024; down 3 since FY2024.
52	Wisconsin Physicians Service Insurance Corp. Top agencies DHA (Defense Health Agency)	$41,769,825	0.1%	Rank history: #37 in FY2021, #42 in FY2022, #47 in FY2023 and #41 in FY2024; down 11 since FY2024.
53	Dawson Cms, LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$40,302,047	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; up 18 since FY2024.
54	Blue Cross and Blue Shield of South Carolina Through Karna LLC Top agencies HHS (Department of Health and Human Services)	$40,147,198	0.1%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and #66 in FY2024; up 12 since FY2024.
55	Noridian Healthcare Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$39,679,248	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 2 since FY2024.
56	Managed Care Advisors, Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) EEOC (Equal Employment Opportunity Commission)	$37,769,447	0.1%	Rank history: not on the FY2021–FY2024 lists; up 65 since FY2024.
57	Spectrum Healthcare Resources, Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$37,743,208	0.1%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; down 24 since FY2024.
58	Chenega Tri-Services, LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$36,863,616	0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; up 31 since FY2024.
59	Magellan Federal Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) DHRA (Defense Human Resources Activity)	$36,278,638	0.1%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 34 since FY2024.
60	Sterling Medical Associates, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$36,218,341	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
61	Island Peer Review Organization Inc. Top agencies HHS (Department of Health and Human Services)	$35,029,490	0.1%	Rank history: not on the FY2021 list, #50 in FY2022 and not on the FY2023–FY2024 lists; up 186 since FY2024.
62	New York City Health and Hospitals Corporation Top agencies HHS (Department of Health and Human Services)	$34,775,819	0.1%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and #55 in FY2024; down 7 since FY2024.
63	Bay Area Anesthesia LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$34,579,267	0.1%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #51 in FY2024; down 12 since FY2024.
64	Readiforce Government Solutions LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) DFAS (Defense Finance and Accounting Service)	$34,314,707	0.1%	Rank history: #100 in FY2021, #92 in FY2022, #62 in FY2023 and #73 in FY2024; up 9 since FY2024.
65	Vanderbilt University Medical Center Top agencies VA (Department of Veterans Affairs)	$34,055,034	0.1%	Rank history: not on the FY2021–FY2024 lists; up 43 since FY2024.
66	TLS Joint Venture LLC Top agencies DHA (Defense Health Agency)	$32,324,122	0.1%	Rank history: not on the FY2021–FY2024 lists; up 123 since FY2024.
67	The University of North Texas Health Science Center At Fort Worth Top agencies DOJ (Department of Justice)	$31,425,998	0.1%	Rank history: #63 in FY2021, not on the FY2022 list, #87 in FY2023 and #64 in FY2024; down 3 since FY2024.
68	Primary Care Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$30,686,425	0.1%	Rank history: #99 in FY2021, #74 in FY2022, #66 in FY2023 and #69 in FY2024; up 1 since FY2024.
69	Four Winds Staffing LLC Top agencies HHS (Department of Health and Human Services)	$30,346,031	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; up 6 since FY2024.
70	Integrated Medical Solutions, LLC Top agencies DOJ (Department of Justice)	$29,817,014	0.1%	Rank history: #60 in FY2021, #71 in FY2022, #67 in FY2023 and #67 in FY2024; down 3 since FY2024.
71	Servefed Inc. Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$29,790,669	0.1%	Rank history: not on the FY2021 list, #79 in FY2022, #80 in FY2023 and #65 in FY2024; down 6 since FY2024.
72	Giacare & Medtrust JV LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$28,986,155	0.1%	Rank history: not on the FY2021 list, #56 in FY2022, #81 in FY2023 and #60 in FY2024; down 12 since FY2024.
73	Vetmed Group LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$28,951,516	0.1%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2024; up 17 since FY2024.
74	Titan-Auxo, LLC Top agencies VA (Department of Veterans Affairs)	$28,904,798	0.1%	Rank history: not on the FY2021–FY2024 lists; up 148 since FY2024.
75	Centralcare, Incorporated Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$28,851,564	0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023 and #84 in FY2024; up 9 since FY2024.
76	Cape Fox Corporation 2 awardees, including Concentric Methods, LLC and Eagle Health, LLC Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) OPM (Office of Personnel Management)	$27,999,355	0.1%	Rank history: not on the FY2021–FY2024 lists; up 74 since FY2024.
77	Citadel Federal Solutions LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$27,047,101	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 401 since FY2024.
78	Sanofi Pasteur Inc. Through Sanofi Vaccines US Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$26,600,865	<0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; up 1 since FY2024.
79	Distinctive Spectrum Healthcare Solutions JV LLC 3 awardees, including Distinctive Health Spectrum Care JV LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) Army (Department of the Army)	$26,316,848	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
80	Prairie Band Health Services Inc. Top agencies HHS (Department of Health and Human Services)	$26,294,818	<0.1%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2024; down 10 since FY2024.
81	WJM Professional Services LLC Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$26,187,999	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 389 since FY2024.
82	City of New York Fire Department Top agencies HHS (Department of Health and Human Services)	$24,718,534	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 25 since FY2024.
83	Livanta LLC Top agencies HHS (Department of Health and Human Services)	$24,570,151	<0.1%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and #13 in FY2024; down 70 since FY2024.
84	AMG Healthcare Services Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army) USAF (Department of the Air Force)	$24,445,956	<0.1%	Rank history: not on the FY2021 list, #100 in FY2022, #72 in FY2023 and not on the FY2024 list; up 99 since FY2024.
85	The Royster Group, Inc. Top agencies DHA (Defense Health Agency)	$22,906,543	<0.1%	Rank history: #95 in FY2021, #93 in FY2022, #84 in FY2023 and #61 in FY2024; down 24 since FY2024.
86	Ingenesis Inc. Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$22,848,542	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 272 since FY2024.
87	Arrow Arc LLC Top agencies VA (Department of Veterans Affairs)	$21,765,985	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Goodwill Industries of San Antonio Contract Services Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$21,557,564	<0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and #81 in FY2024; down 7 since FY2024.
89	Cognito Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$21,261,940	<0.1%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 7 since FY2024.
90	Donald L. Mooney Enterprises, LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army) VA (Department of Veterans Affairs)	$21,223,119	<0.1%	Rank history: #54 in FY2021, #53 in FY2022, #33 in FY2023 and #36 in FY2024; down 54 since FY2024.
91	Dt-Trak Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$20,789,384	<0.1%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 7 since FY2024.
92	Valor Network, Inc. Top agencies DHA (Defense Health Agency) DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$20,402,337	<0.1%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 8 since FY2024.
93	Amergis Healthcare Staffing Inc. Top agencies DHS (Department of Homeland Security)	$20,194,960	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	Mayo Clinic Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$19,625,986	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 111 since FY2024.
95	Aphena Pharma Solutions-Tennessee, LLC Top agencies VA (Department of Veterans Affairs)	$18,912,469	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 29 since FY2024.
96	University of Kentucky Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$18,533,836	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 23 since FY2024.
97	Potomac Healthcare Solutions, LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$18,442,490	<0.1%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; down 11 since FY2024.
98	A-Team Solutions LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$18,362,416	<0.1%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and not on the FY2024 list; up 81 since FY2024.
99	The Research Foundation for the State University of New York Top agencies HHS (Department of Health and Human Services)	$18,118,015	<0.1%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2024; down 40 since FY2024.
100	SNA International LLC Top agencies WHS (DOD Washington Headquarters Service)	$17,830,866	<0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; down 9 since FY2024.

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100 of 3,786 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC Q

Code	Net obligations	Largest contractor
Q2 General Health Care Services	$37,896,052,648	UnitedHealth Group Incorporated
Q4 Nursing, Nursing Home, Eval/Screen	$9,720,055,935	Leidos Holdings, Inc.
Q9 Other Medical Services	$3,052,270,596	NNA Inc.
Q5 Medical, Dental, and Surgical Services	$1,608,152,750	United Concordia Companies, Inc.
Q3 Laboratory Testing Services	$530,269,022	Laboratory Corporation of America
Q8 Clerical Medical Support	$134,966,194	Federal Staffing Resources, LLC
Q6 Certified Medical Support	$69,674,262	Goodwill Industries of San Antonio Contract Services
Q7 Specialized Technical/ Medical Support	-$25,120,888	Goldbelt Apex, LLC

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 $55.7 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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

Who were the top 10 PSC Q contractors in FY2025?

1. UnitedHealth Group Incorporated ($25.1B), 2. Humana Government Business Inc. ($6.51B), 3. Triwest Healthcare Alliance Corp ($3.88B), 4. Leidos Holdings, Inc. ($2.78B), 5. Maximus Federal Services, Inc. ($2.03B), 6. Health Net Federal Services, LLC ($1.43B), 7. Loyal Source Government Services LLC ($899M), 8. NNA Inc. ($693M), 9. Express Scripts Inc ($561M), 10. Davita Inc. ($536M).

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