Top 100 Contractors in NAICS 621111: Offices of Physicians (except Mental Health Specialists), Jul 2025–Jun 2026

Name: Top 100 Contractors in NAICS 621111: Offices of Physicians (except Mental Health Specialists), Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 95% of NAICS 621111 contract dollars from July 2025 through June 2026

Contract obligations: $11,945,842,442 Net of deobligations, by contracts coded NAICS 621111
Contractors: 548 Parent companies with an obligation
Largest contractor: Leidos Holdings, Inc. $3.67 billion, 30.2% 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	Leidos Holdings, Inc. Through QTC Medical Services Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$3,665,601,258	30.2%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 1 since Jul 2024–Jun 2025.
2	UnitedHealth Group Incorporated Through Optumserve Health Services, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$2,971,377,159	24.4%	Rank history: #3 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; down 1 since Jul 2024–Jun 2025.
3	Maximus Federal Services, Inc. Through Veterans Evaluation Services, Inc. Top agencies VA (Department of Veterans Affairs)	$2,634,071,417	21.7%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Jul 2024–Jun 2025.
4	Loyal Source Government Services LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$2,049,864,095	16.9%	Rank history: not on the FY2021 list, #8 in FY2022, #4 in FY2023, #5 in FY2024 and #4 in FY2025; unchanged since Jul 2024–Jun 2025.
5	Decypher Health Services, LLC Top agencies DHA (Defense Health Agency)	$66,329,631	0.5%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #11 in FY2025; up 4 since Jul 2024–Jun 2025.
6	Luke & Associates Inc. Top agencies DHA (Defense Health Agency)	$32,344,130	0.3%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #6 in FY2025; up 2 since Jul 2024–Jun 2025.
7	Tribal Health, LLC Top agencies HHS (Department of Health and Human Services)	$25,364,326	0.2%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #10 in FY2025; unchanged since Jul 2024–Jun 2025.
8	Aims-Usgp JV LLC Top agencies DHA (Defense Health Agency)	$24,571,333	0.2%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; up 3 since Jul 2024–Jun 2025.
9	Acuity International LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$20,060,283	0.2%	Rank history: not on the FY2021 list, #16 in FY2022, #16 in FY2023, #21 in FY2024 and #9 in FY2025; up 5 since Jul 2024–Jun 2025.
10	Matrix Providers Inc. Top agencies DHA (Defense Health Agency)	$19,886,628	0.2%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; up 28 since Jul 2024–Jun 2025.
11	Prairie Band Health Services Inc. Top agencies HHS (Department of Health and Human Services)	$19,843,880	0.2%	Rank history: not on the FY2021 list, #21 in FY2022, #29 in FY2023, #13 in FY2024 and #8 in FY2025; up 1 since Jul 2024–Jun 2025.
12	Aspire-Luke JV LLC Top agencies DHA (Defense Health Agency)	$17,889,500	0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; new, not ranked in Jul 2024–Jun 2025.
13	Chenega Tri-Services, LLC Top agencies Army (Department of the Army)	$17,434,334	0.1%	Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and #5 in FY2025; down 8 since Jul 2024–Jun 2025.
14	Prime Physicians PLLC Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$16,836,094	0.1%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #56 in FY2025; up 8 since Jul 2024–Jun 2025.
15	Acmesolv, LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$16,517,265	0.1%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; new, not ranked in Jul 2024–Jun 2025.
16	Magnolia Government Solutions LLC Top agencies DHA (Defense Health Agency)	$16,464,648	0.1%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Jul 2024–Jun 2025.
17	Oneerp Solutions LLC Top agencies DHA (Defense Health Agency)	$13,225,931	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
18	Cognito LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$12,379,597	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
19	North American United Healthcare Services JV LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$12,174,709	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
20	Cherokee Nation Through Cherokee Nation Integrated Health, L.L.C. Top agencies Army (Department of the Army)	$11,940,939	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
21	WJM Professional Services LLC Top agencies DHS (Department of Homeland Security) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$11,585,321	0.1%	Rank history: not on the FY2021 list, #87 in FY2022, #39 in FY2023, #83 in FY2024 and #7 in FY2025; down 15 since Jul 2024–Jun 2025.
22	PDQ Health Services, LLC Top agencies DHA (Defense Health Agency)	$11,192,523	0.1%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; new, not ranked in Jul 2024–Jun 2025.
23	Bay Area Anesthesia LLC Top agencies HHS (Department of Health and Human Services)	$10,889,216	0.1%	Rank history: #92 in FY2021, #38 in FY2022, #13 in FY2023, #24 in FY2024 and #44 in FY2025; up 18 since Jul 2024–Jun 2025.
24	Vetmed Group LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$10,801,838	0.1%	Rank history: #30 in FY2021, #27 in FY2022, #11 in FY2023, #12 in FY2024 and #12 in FY2025; down 14 since Jul 2024–Jun 2025.
25	Global Shield Health Consultants, LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$9,740,032	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
26	Compass Arora JV LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$9,595,444	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
27	Tryfacta Inc Top agencies DHA (Defense Health Agency)	$7,830,565	0.1%	Rank history: not on the FY2021–FY2025 lists; up 148 since Jul 2024–Jun 2025.
28	Medicus Healthcare Solutions, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$7,534,742	0.1%	Rank history: #20 in FY2021, #11 in FY2022, #8 in FY2023, #16 in FY2024 and #14 in FY2025; down 12 since Jul 2024–Jun 2025.
29	APC Ingenesis Healthcare Staffing, LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$7,289,765	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
30	Arise Staffing JV LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$6,068,812	<0.1%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Jul 2024–Jun 2025.
31	Seven Corners Inc. Top agencies DOJ (Department of Justice)	$5,141,436	<0.1%	Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; new, not ranked in Jul 2024–Jun 2025.
32	Fedhealth Systems Alliance, LLC Top agencies VA (Department of Veterans Affairs)	$4,777,579	<0.1%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #15 in FY2025; down 14 since Jul 2024–Jun 2025.
33	Avosys Technology, Inc. Top agencies DHA (Defense Health Agency)	$4,669,142	<0.1%	Rank history: #10 in FY2021, #14 in FY2022, #21 in FY2023, #17 in FY2024 and #16 in FY2025; down 14 since Jul 2024–Jun 2025.
34	Sequoyah Staffing Agency, LLC Top agencies HHS (Department of Health and Human Services)	$4,608,385	<0.1%	Rank history: #21 in FY2021, #60 in FY2022, #12 in FY2023, #14 in FY2024 and #18 in FY2025; down 17 since Jul 2024–Jun 2025.
35	Coho Federal Solutions JV LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$4,555,609	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
36	Servefed Inc. Top agencies HHS (Department of Health and Human Services)	$4,173,351	<0.1%	Rank history: not on the FY2021–FY2023 lists, #26 in FY2024 and #25 in FY2025; down 12 since Jul 2024–Jun 2025.
37	Jade Wolf Operations, LLC Top agencies VA (Department of Veterans Affairs)	$4,118,244	<0.1%	Rank history: #52 in FY2021, #55 in FY2022, #10 in FY2023, #28 in FY2024 and #27 in FY2025; down 14 since Jul 2024–Jun 2025.
38	University of Maryland Diagnostic Imaging Specialists, P. A. Top agencies VA (Department of Veterans Affairs)	$3,921,679	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
39	BMC Healthcare Solutions JV, LLC Top agencies DHA (Defense Health Agency)	$3,793,744	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
40	Wander Staffing LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$3,754,066	<0.1%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023, #45 in FY2024 and not on the FY2025 list; up 131 since Jul 2024–Jun 2025.
41	DAX Safety & Staffing Solutions, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$3,598,295	<0.1%	Rank history: not on the FY2021 list, #63 in FY2022, #50 in FY2023, #29 in FY2024 and #54 in FY2025; up 8 since Jul 2024–Jun 2025.
42	Assurgent Medical Staffing LLC Top agencies VA (Department of Veterans Affairs)	$3,587,582	<0.1%	Rank history: #63 in FY2021, #77 in FY2022, #23 in FY2023, #34 in FY2024 and #34 in FY2025; down 3 since Jul 2024–Jun 2025.
43	JR Enterprise, L.l.c Top agencies VA (Department of Veterans Affairs)	$3,520,340	<0.1%	Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and #28 in FY2025; new, not ranked in Jul 2024–Jun 2025.
44	Rielcad JV LLC Top agencies DHA (Defense Health Agency)	$3,377,745	<0.1%	Rank history: #85 in FY2021, #30 in FY2022, #15 in FY2023, #32 in FY2024 and #29 in FY2025; down 16 since Jul 2024–Jun 2025.
45	Arc Health PBC Top agencies HHS (Department of Health and Human Services)	$3,269,322	<0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; up 12 since Jul 2024–Jun 2025.
46	Central Kentucky Radiology, PLLC Top agencies VA (Department of Veterans Affairs)	$3,246,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
47	New York University Top agencies VA (Department of Veterans Affairs)	$3,243,199	<0.1%	Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; down 16 since Jul 2024–Jun 2025.
48	Spectrum Healthcare Resources, Inc. Top agencies DHA (Defense Health Agency)	$3,233,044	<0.1%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #48 in FY2025; new, not ranked in Jul 2024–Jun 2025.
49	Native Health Top agencies HHS (Department of Health and Human Services)	$2,981,768	<0.1%	Rank history: #33 in FY2021, #6 in FY2022, #27 in FY2023, #33 in FY2024 and #32 in FY2025; down 14 since Jul 2024–Jun 2025.
50	Acuity-Chs, LLC Top agencies DHRA (Defense Human Resources Activity) Treasury (Department of the Treasury)	$2,929,287	<0.1%	Rank history: not on the FY2021 list, #39 in FY2022, not on the FY2023 list, #22 in FY2024 and #21 in FY2025; down 24 since Jul 2024–Jun 2025.
51	Four Winds Staffing LLC Top agencies HHS (Department of Health and Human Services)	$2,783,773	<0.1%	Rank history: not on the FY2021 list, #99 in FY2022, #46 in FY2023, #57 in FY2024 and #37 in FY2025; up 21 since Jul 2024–Jun 2025.
52	Samyak Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$2,746,343	<0.1%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 9 since Jul 2024–Jun 2025.
53	AMG and Giacare JV, LLC Top agencies DHA (Defense Health Agency)	$2,745,406	<0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Jul 2024–Jun 2025.
54	Minneapolis Radiology Associates, Ltd. Top agencies VA (Department of Veterans Affairs)	$2,707,503	<0.1%	Rank history: #41 in FY2021, #49 in FY2022, #44 in FY2023, #41 in FY2024 and #47 in FY2025; down 10 since Jul 2024–Jun 2025.
55	Chickasaw Business Solutions, LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$2,697,447	<0.1%	Rank history: not on the FY2021 list, #34 in FY2022, #25 in FY2023, #37 in FY2024 and #36 in FY2025; down 19 since Jul 2024–Jun 2025.
56	Massachusetts General Physicians Organization, Inc. Top agencies HHS (Department of Health and Human Services)	$2,650,846	<0.1%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #35 in FY2025; down 29 since Jul 2024–Jun 2025.
57	Decypher Technologies Ltd Top agencies DHA (Defense Health Agency)	$2,613,701	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
58	Centralcare, Incorporated Top agencies DHA (Defense Health Agency)	$2,554,266	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
59	Federal Staffing Resources, LLC Top agencies DHA (Defense Health Agency)	$2,352,151	<0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; down 9 since Jul 2024–Jun 2025.
60	Progressive Radiology LLC Top agencies VA (Department of Veterans Affairs)	$2,289,802	<0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023, #70 in FY2024 and #49 in FY2025; down 12 since Jul 2024–Jun 2025.
61	Posterity Group LLC Top agencies VA (Department of Veterans Affairs)	$2,240,448	<0.1%	Rank history: not on the FY2021 list, #96 in FY2022, #68 in FY2023, #95 in FY2024 and not on the FY2025 list; up 214 since Jul 2024–Jun 2025.
62	A To Z Integrated Solutions, Llc. Top agencies DHA (Defense Health Agency)	$2,221,876	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
63	Prime Physicians Tri Providers LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$2,205,143	<0.1%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; down 4 since Jul 2024–Jun 2025.
64	All Valley Imaging, L.l.c Top agencies HHS (Department of Health and Human Services)	$2,054,599	<0.1%	Rank history: not on the FY2021 list, #67 in FY2022, #31 in FY2023, #38 in FY2024 and #77 in FY2025; down 30 since Jul 2024–Jun 2025.
65	Call Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$1,939,600	<0.1%	Rank history: #58 in FY2021, #46 in FY2022, #45 in FY2023, #78 in FY2024 and #42 in FY2025; down 28 since Jul 2024–Jun 2025.
66	Akicita Cyber LLC Top agencies HHS (Department of Health and Human Services)	$1,928,321	<0.1%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023, #48 in FY2024 and #61 in FY2025; up 12 since Jul 2024–Jun 2025.
67	Nativearc II, LLC Top agencies HHS (Department of Health and Human Services)	$1,849,720	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
68	Regency Consulting Inc Top agencies HHS (Department of Health and Human Services)	$1,597,920	<0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023, #72 in FY2024 and #55 in FY2025; new, not ranked in Jul 2024–Jun 2025.
69	Muscogee Arora JV LLC Top agencies DHA (Defense Health Agency)	$1,500,576	<0.1%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #98 in FY2025; up 129 since Jul 2024–Jun 2025.
70	Johns Hopkins University Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$1,485,894	<0.1%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; up 4 since Jul 2024–Jun 2025.
71	EGA Associates LLC Top agencies VA (Department of Veterans Affairs)	$1,484,934	<0.1%	Rank history: #34 in FY2021, #25 in FY2022, #43 in FY2023, #31 in FY2024 and #24 in FY2025; down 51 since Jul 2024–Jun 2025.
72	Watanabe Enterprises LLC Top agencies VA (Department of Veterans Affairs)	$1,444,532	<0.1%	Rank history: #100 in FY2021, #72 in FY2022, #64 in FY2023, #86 in FY2024 and #71 in FY2025; down 1 since Jul 2024–Jun 2025.
73	Argent Technologies, LLC Top agencies USAF (Department of the Air Force)	$1,397,895	<0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
74	Vascular Radiology Associates II Top agencies VA (Department of Veterans Affairs)	$1,324,468	<0.1%	Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and #65 in FY2025; down 14 since Jul 2024–Jun 2025.
75	Dt-Trak Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$1,272,217	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
76	Chenega Reliable Services LLC Top agencies Commerce (Department of Commerce)	$1,205,974	<0.1%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #90 in FY2025; up 75 since Jul 2024–Jun 2025.
77	Vesa Health & Technology Inc. Top agencies DHA (Defense Health Agency)	$1,191,956	<0.1%	Rank history: #38 in FY2021, not on the FY2022–FY2024 lists and #23 in FY2025; down 56 since Jul 2024–Jun 2025.
78	Ut Medical Group, Inc. Top agencies VA (Department of Veterans Affairs)	$1,158,642	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
79	Shelin, Agrawal, and Hyer, PLLC Top agencies DHA (Defense Health Agency)	$1,080,755	<0.1%	Rank history: #72 in FY2021, #73 in FY2022, #55 in FY2023, #69 in FY2024 and #70 in FY2025; down 13 since Jul 2024–Jun 2025.
80	Chenega Pro Federal Solutions, LLC Top agencies Commerce (Department of Commerce)	$1,027,023	<0.1%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #64 in FY2025; down 22 since Jul 2024–Jun 2025.
81	Prime Tri Providers LLC Top agencies HHS (Department of Health and Human Services)	$994,278	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
82	Mayo Clinic Top agencies DOJ (Department of Justice)	$991,217	<0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; down 3 since Jul 2024–Jun 2025.
83	Circulatory Services Inc. Top agencies VA (Department of Veterans Affairs)	$985,710	<0.1%	Rank history: #70 in FY2021, #75 in FY2022, #61 in FY2023, not on the FY2024 list and #67 in FY2025; down 31 since Jul 2024–Jun 2025.
84	Wellmont Cardiology Services Top agencies VA (Department of Veterans Affairs)	$979,141	<0.1%	Rank history: #78 in FY2021, not on the FY2022 list, #76 in FY2023, #68 in FY2024 and #78 in FY2025; down 19 since Jul 2024–Jun 2025.
85	Bexar Pediatric Surgery Associates, P.L.L.C. Top agencies DHA (Defense Health Agency)	$966,720	<0.1%	Rank history: not on the FY2021–FY2023 lists, #91 in FY2024 and #73 in FY2025; down 18 since Jul 2024–Jun 2025.
86	University of Maryland Eye Associates Pa Top agencies VA (Department of Veterans Affairs)	$949,899	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
87	Locum Inc. Top agencies SSA (Social Security Administration)	$928,270	<0.1%	Rank history: not on the FY2021 list, #98 in FY2022, not on the FY2023 list, #87 in FY2024 and #91 in FY2025; down 6 since Jul 2024–Jun 2025.
88	Clark. Narvarte & Vicks A Professional Corporation O'neill Top agencies VA (Department of Veterans Affairs)	$922,585	<0.1%	Rank history: #93 in FY2021, #89 in FY2022, #70 in FY2023, not on the FY2024 list and #79 in FY2025; down 11 since Jul 2024–Jun 2025.
89	American Health Consultants Inc. Top agencies SSA (Social Security Administration)	$905,277	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 11 since Jul 2024–Jun 2025.
90	Cardiopulmonary Support Services, LLC Top agencies VA (Department of Veterans Affairs)	$854,130	<0.1%	Rank history: not on the FY2021 list, #92 in FY2022, #59 in FY2023, #49 in FY2024 and not on the FY2025 list; down 21 since Jul 2024–Jun 2025.
91	Tech62 Inc. Top agencies VA (Department of Veterans Affairs)	$840,803	<0.1%	Rank history: #75 in FY2021, #83 in FY2022, #53 in FY2023, #54 in FY2024 and #60 in FY2025; down 35 since Jul 2024–Jun 2025.
92	Vision Technology Inc Top agencies DHA (Defense Health Agency)	$824,381	<0.1%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #46 in FY2025; down 49 since Jul 2024–Jun 2025.
93	University of Kentucky Top agencies VA (Department of Veterans Affairs)	$820,400	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
94	Chenega Government Mission Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$792,129	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	Vista Staffing Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$781,660	<0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; down 8 since Jul 2024–Jun 2025.
96	Nancy M Simpkins Top agencies SSA (Social Security Administration)	$765,338	<0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023, #88 in FY2024 and #72 in FY2025; down 28 since Jul 2024–Jun 2025.
97	SAI R Nimmagadda Top agencies SSA (Social Security Administration)	$750,945	<0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2024–FY2025 lists; up 86 since Jul 2024–Jun 2025.
98	University Otolaryngology Associates of Central New York LLP Top agencies VA (Department of Veterans Affairs)	$724,229	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 1 since Jul 2024–Jun 2025.
99	Adelphi Staffing, LLC Top agencies VA (Department of Veterans Affairs)	$713,342	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
100	Nationwide Healthcare Solutions, LLC Top agencies DHA (Defense Health Agency)	$699,043	<0.1%	Rank history: #35 in FY2021, #40 in FY2022, #22 in FY2023, #40 in FY2024 and #39 in FY2025; down 58 since Jul 2024–Jun 2025.

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100 of 548 contractors listed here. See the rest on GovTribe.

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 $12.2 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.
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 Jul 2024–Jun 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

Who were the top 10 NAICS 621111 contractors in Jul 2025–Jun 2026?

1. Leidos Holdings, Inc. ($3.67B), 2. UnitedHealth Group Incorporated ($2.97B), 3. Maximus Federal Services, Inc. ($2.63B), 4. Loyal Source Government Services LLC ($2.05B), 5. Decypher Health Services, LLC ($66.3M), 6. Luke & Associates Inc. ($32.3M), 7. Tribal Health, LLC ($25.4M), 8. Aims-Usgp JV LLC ($24.6M), 9. Acuity International LLC ($20.1M), 10. Matrix Providers Inc. ($19.9M).

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