Top 100 Contractors in NAICS 621112: Offices of Physicians, Mental Health Specialists, Aug 2025–Jul 2026

Name: Top 100 Contractors in NAICS 621112: Offices of Physicians, Mental Health Specialists, Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 621112: Offices of Physicians, Mental Health Specialists, FY2025.

The top 10 won 66% of NAICS 621112 contract dollars from August 2025 through July 2026

Contract obligations: $162,601,113 Net of deobligations, by contracts coded NAICS 621112
Contractors: 189 Parent companies with an obligation
Largest contractor: Leidos Holdings, Inc. $52.3 million, 29.8% of obligations
Data as of: Nov 5, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. Through QTC Medical Services Inc. Top agencies DHA (Defense Health Agency)	$52,341,712	29.8%	Rank history: #2 in FY2021, not on the FY2022 list, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 1 since Aug 2024–Jul 2025.
2	Dawson Cms, LLC Top agencies DHA (Defense Health Agency)	$26,171,709	14.9%	Rank history: not on the FY2021 list, #5 in FY2022, #5 in FY2023, #3 in FY2024 and #2 in FY2025; new, not ranked in Aug 2024–Jul 2025.
3	UnitedHealth Group Incorporated Through Optumserve Health Services, Inc. Top agencies DHA (Defense Health Agency)	$11,000,000	6.3%	Rank history: #9 in FY2021, #6 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4	Sterling Medical Associates, Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$6,555,665	3.7%	Rank history: not on the FY2021 list, #8 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
5	Indian Health Care Resource Center of Tulsa, Inc. Top agencies HHS (Department of Health and Human Services)	$5,553,582	3.2%	Rank history: #4 in FY2021, #4 in FY2022, #7 in FY2023, #6 in FY2024 and #3 in FY2025; down 2 since Aug 2024–Jul 2025.
6	Magnum Medical Overseas JV LLC Top agencies Navy (Department of the Navy)	$4,602,589	2.6%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; up 1 since Aug 2024–Jul 2025.
7	Texas Native Health Top agencies HHS (Department of Health and Human Services)	$2,964,154	1.7%	Rank history: #3 in FY2021, #7 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; up 111 since Aug 2024–Jul 2025.
8	American Healthcare Services JV LLC Top agencies Army (Department of the Army)	$2,551,640	1.5%	Rank history: #13 in FY2021, #9 in FY2022, #9 in FY2023, #9 in FY2024 and #5 in FY2025; down 3 since Aug 2024–Jul 2025.
9	Tribal TECH LLC Top agencies DOI (Department of the Interior)	$2,523,322	1.4%	Rank history: #14 in FY2021, #17 in FY2022, #4 in FY2023, not on the FY2024 list and #20 in FY2025; up 118 since Aug 2024–Jul 2025.
10	National Security Psychological Services LLC Top agencies DOE (Department of Energy)	$2,387,928	1.4%	Rank history: #18 in FY2021, #11 in FY2022, #15 in FY2023, #8 in FY2024 and #6 in FY2025; down 4 since Aug 2024–Jul 2025.
11	Native American Health Center, Inc. Top agencies HHS (Department of Health and Human Services)	$2,254,844	1.3%	Rank history: #7 in FY2021, #12 in FY2022, #10 in FY2023, #10 in FY2024 and #8 in FY2025; down 3 since Aug 2024–Jul 2025.
12	Hunter Health Clinic Inc. Top agencies HHS (Department of Health and Human Services)	$2,070,744	1.2%	Rank history: #12 in FY2021, #3 in FY2022, #11 in FY2023, #20 in FY2024 and #9 in FY2025; down 2 since Aug 2024–Jul 2025.
13	Sacramento Native American Health Center Inc. Top agencies HHS (Department of Health and Human Services)	$1,693,367	1.0%	Rank history: #6 in FY2021, #15 in FY2022, #13 in FY2023, #12 in FY2024 and #10 in FY2025; down 2 since Aug 2024–Jul 2025.
14	Annashae Corp Top agencies VA (Department of Veterans Affairs)	$1,571,950	0.9%	Rank history: #16 in FY2021, #13 in FY2022, #18 in FY2023, #19 in FY2024 and not on the FY2025 list; up 64 since Aug 2024–Jul 2025.
15	Millbrook Support Services Inc. Top agencies VA (Department of Veterans Affairs)	$1,347,375	0.8%	Rank history: #48 in FY2021, not on the FY2022 list, #14 in FY2023, not on the FY2024 list and #11 in FY2025; down 3 since Aug 2024–Jul 2025.
16	Shadowbox Consulting Associates LLC Top agencies DHA (Defense Health Agency)	$1,003,845	0.6%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023, #25 in FY2024 and #24 in FY2025; up 5 since Aug 2024–Jul 2025.
17	Clinton Vauls Technology Group LLC Top agencies USAF (Department of the Air Force)	$949,171	0.5%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; new, not ranked in Aug 2024–Jul 2025.
18	Prime Physicians PLLC Top agencies SSA (Social Security Administration) HHS (Department of Health and Human Services)	$867,632	0.5%	Rank history: not on the FY2021–FY2023 lists, #26 in FY2024 and #15 in FY2025; down 3 since Aug 2024–Jul 2025.
19	Guardian Defense Group, Inc. Top agencies Army (Department of the Army)	$857,593	0.5%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023, #17 in FY2024 and #14 in FY2025; down 5 since Aug 2024–Jul 2025.
20	Koutrakos Stacy Top agencies SSA (Social Security Administration)	$847,993	0.5%	Rank history: #22 in FY2021, #26 in FY2022, #21 in FY2023, #24 in FY2024 and #18 in FY2025; up 20 since Aug 2024–Jul 2025.
21	Central Oklahoma American Indian Health Council, Inc. Top agencies HHS (Department of Health and Human Services)	$758,585	0.4%	Rank history: #8 in FY2021, #1 in FY2022, #6 in FY2023, #5 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
22	Prosperitus Solutions LLC Top agencies DHA (Defense Health Agency)	$688,819	0.4%	Rank history: #40 in FY2021, #21 in FY2022, #97 in FY2023, #13 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
23	Posey Psychology, PLLC Top agencies SSA (Social Security Administration)	$664,350	0.4%	Rank history: #74 in FY2021, #31 in FY2022, #32 in FY2023, #23 in FY2024 and #38 in FY2025; up 10 since Aug 2024–Jul 2025.
24	Brode Tawnya E Top agencies SSA (Social Security Administration)	$662,004	0.4%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and #17 in FY2025; down 7 since Aug 2024–Jul 2025.
25	LRS Gryphon JV LLC Top agencies Navy (Department of the Navy)	$659,704	0.4%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; up 5 since Aug 2024–Jul 2025.
26	Matthew W Turner PHD Inc Top agencies SSA (Social Security Administration)	$646,544	0.4%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #26 in FY2025; up 15 since Aug 2024–Jul 2025.
27	Abrahimi Heather M Top agencies SSA (Social Security Administration)	$630,000	0.4%	Rank history: #47 in FY2021, #40 in FY2022, #33 in FY2023, #51 in FY2024 and #33 in FY2025; down 2 since Aug 2024–Jul 2025.
28	UWE Jacobs Top agencies SSA (Social Security Administration)	$582,750	0.3%	Rank history: #45 in FY2021, #42 in FY2022, #36 in FY2023, #33 in FY2024 and #34 in FY2025; down 2 since Aug 2024–Jul 2025.
29	Charles Brady Dalton LLC Top agencies SSA (Social Security Administration)	$576,658	0.3%	Rank history: #33 in FY2021, #29 in FY2022, #27 in FY2023, #39 in FY2024 and #28 in FY2025; down 1 since Aug 2024–Jul 2025.
30	Mendoza Ryan Top agencies SSA (Social Security Administration)	$575,145	0.3%	Rank history: #32 in FY2021, #69 in FY2022, #67 in FY2023, not on the FY2024 list and #46 in FY2025; up 23 since Aug 2024–Jul 2025.
31	Franco, Anna Top agencies SSA (Social Security Administration)	$561,750	0.3%	Rank history: #35 in FY2021, #39 in FY2022, #34 in FY2023, #48 in FY2024 and #36 in FY2025; down 2 since Aug 2024–Jul 2025.
32	Charles Huston Dukes Top agencies DOT (Department of Transportation)	$554,340	0.3%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; up 52 since Aug 2024–Jul 2025.
33	Schwartz Joshua D Top agencies SSA (Social Security Administration)	$548,100	0.3%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #35 in FY2025; down 6 since Aug 2024–Jul 2025.
34	Maurice Prout Top agencies SSA (Social Security Administration)	$536,994	0.3%	Rank history: not on the FY2021 list, #63 in FY2022, #63 in FY2023, #30 in FY2024 and #45 in FY2025; up 11 since Aug 2024–Jul 2025.
35	Mark Berkowitz, Psy.d Top agencies SSA (Social Security Administration)	$505,095	0.3%	Rank history: #21 in FY2021, #22 in FY2022, #23 in FY2023, #27 in FY2024 and #19 in FY2025; down 17 since Aug 2024–Jul 2025.
36	Goosby Dara Top agencies SSA (Social Security Administration)	$472,500	0.3%	Rank history: #50 in FY2021, #58 in FY2022, #43 in FY2023, #77 in FY2024 and #44 in FY2025; up 31 since Aug 2024–Jul 2025.
37	Levin & Taylor ( A Medical Corporation) Top agencies DOT (Department of Transportation)	$469,000	0.3%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #30 in FY2025; up 7 since Aug 2024–Jul 2025.
38	Compass Medical Provider LLC Top agencies Army (Department of the Army)	$466,961	0.3%	Rank history: #15 in FY2021, #18 in FY2022, #16 in FY2023, #15 in FY2024 and #29 in FY2025; down 25 since Aug 2024–Jul 2025.
39	Joan Freedman Joynson Top agencies SSA (Social Security Administration)	$464,280	0.3%	Rank history: #38 in FY2021, #43 in FY2022, #66 in FY2023, #36 in FY2024 and #53 in FY2025; up 19 since Aug 2024–Jul 2025.
40	Adamo Sonya A Top agencies SSA (Social Security Administration)	$460,372	0.3%	Rank history: #81 in FY2021, #75 in FY2022, #20 in FY2023, #22 in FY2024 and #25 in FY2025; down 18 since Aug 2024–Jul 2025.
41	Telford-Tyler Janet Top agencies SSA (Social Security Administration)	$459,579	0.3%	Rank history: #62 in FY2021, #81 in FY2022, #52 in FY2023, #61 in FY2024 and #40 in FY2025; down 6 since Aug 2024–Jul 2025.
42	Carol A Mohney Top agencies SSA (Social Security Administration)	$459,515	0.3%	Rank history: not on the FY2021 list, #62 in FY2022, #19 in FY2023, #70 in FY2024 and #21 in FY2025; down 23 since Aug 2024–Jul 2025.
43	Barbara Moura Top agencies SSA (Social Security Administration)	$452,895	0.3%	Rank history: #53 in FY2021, #38 in FY2022, #35 in FY2023, #56 in FY2024 and #58 in FY2025; up 13 since Aug 2024–Jul 2025.
44	Sandip Sen Top agencies SSA (Social Security Administration)	$446,590	0.3%	Rank history: not on the FY2021 list, #86 in FY2022, #59 in FY2023, #87 in FY2024 and #71 in FY2025; up 17 since Aug 2024–Jul 2025.
45	Crystal M Duclos Top agencies SSA (Social Security Administration)	$424,523	0.2%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023, #99 in FY2024 and #82 in FY2025; up 34 since Aug 2024–Jul 2025.
46	Alan R Sager MD Top agencies DOT (Department of Transportation)	$424,498	0.2%	Rank history: not on the FY2021 list, #35 in FY2022, not on the FY2023 list, #84 in FY2024 and not on the FY2025 list; up 74 since Aug 2024–Jul 2025.
47	Covey, Elizabeth Top agencies SSA (Social Security Administration)	$420,000	0.2%	Rank history: #52 in FY2021, #95 in FY2022, #65 in FY2023, #79 in FY2024 and #62 in FY2025; up 13 since Aug 2024–Jul 2025.
48	Stern George W PHD Top agencies SSA (Social Security Administration)	$412,880	0.2%	Rank history: not on the FY2021 list, #74 in FY2022, #37 in FY2023, #41 in FY2024 and #52 in FY2025; up 37 since Aug 2024–Jul 2025.
49	Vanderplate Calvin Top agencies SSA (Social Security Administration)	$407,652	0.2%	Rank history: #30 in FY2021, not on the FY2022 list, #50 in FY2023, #58 in FY2024 and #37 in FY2025; down 17 since Aug 2024–Jul 2025.
50	Houser MD Victor Top agencies HHS (Department of Health and Human Services)	$402,700	0.2%	Rank history: not on the FY2021 list, #77 in FY2022, not on the FY2023 list, #42 in FY2024 and #74 in FY2025; up 25 since Aug 2024–Jul 2025.
51	Mark Gilson PHD PC Top agencies SSA (Social Security Administration)	$399,304	0.2%	Rank history: not on the FY2021 list, #84 in FY2022, #88 in FY2023, #98 in FY2024 and #50 in FY2025; down 2 since Aug 2024–Jul 2025.
52	Mark Schade, PHD Top agencies SSA (Social Security Administration)	$390,000	0.2%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #67 in FY2025; down 16 since Aug 2024–Jul 2025.
53	Sallie Boulos-Sophy LLC Top agencies SSA (Social Security Administration)	$389,070	0.2%	Rank history: not on the FY2021 list, #67 in FY2022, #57 in FY2023, #54 in FY2024 and #49 in FY2025; up 12 since Aug 2024–Jul 2025.
54	Paul Cherry, Ph.d., Inc. Top agencies SSA (Social Security Administration)	$383,357	0.2%	Rank history: not on the FY2021–FY2023 lists, #91 in FY2024 and not on the FY2025 list; up 52 since Aug 2024–Jul 2025.
55	Universal Bundles LLC Top agencies SSA (Social Security Administration)	$372,988	0.2%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and not on the FY2025 list; up 119 since Aug 2024–Jul 2025.
56	Cortes, Jennifer A Top agencies SSA (Social Security Administration)	$369,843	0.2%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023, not on the FY2024 list and #90 in FY2025; up 57 since Aug 2024–Jul 2025.
57	Neurotherapy Center of Plano, Inc. Top agencies SSA (Social Security Administration)	$365,419	0.2%	Rank history: not on the FY2021 list, #54 in FY2022, #24 in FY2023, #46 in FY2024 and #32 in FY2025; down 33 since Aug 2024–Jul 2025.
58	Coleman K Cosgrove Top agencies SSA (Social Security Administration)	$356,400	0.2%	Rank history: not on the FY2021 list, #85 in FY2022, #68 in FY2023, #29 in FY2024 and #23 in FY2025; down 42 since Aug 2024–Jul 2025.
59	Nadine J Genece Top agencies SSA (Social Security Administration)	$352,018	0.2%	Rank history: #66 in FY2021, #90 in FY2022, #78 in FY2023, #64 in FY2024 and #68 in FY2025; up 7 since Aug 2024–Jul 2025.
60	Barry F Rudnick MD Top agencies SSA (Social Security Administration)	$349,830	0.2%	Rank history: #83 in FY2021, #100 in FY2022, #54 in FY2023, #60 in FY2024 and #48 in FY2025; down 13 since Aug 2024–Jul 2025.
61	Abesie Ogail Kelly - Clinical Psychologist, LLC Top agencies SSA (Social Security Administration)	$337,120	0.2%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; down 18 since Aug 2024–Jul 2025.
62	Prime Physicians Tri Providers LLC Top agencies HHS (Department of Health and Human Services)	$330,022	0.2%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; down 16 since Aug 2024–Jul 2025.
63	KIM P Morris Gettings Top agencies SSA (Social Security Administration)	$315,240	0.2%	Rank history: #34 in FY2021, #53 in FY2022, #69 in FY2023, #76 in FY2024 and #65 in FY2025; down 1 since Aug 2024–Jul 2025.
64	Yapondjian-Alvarado Maria Top agencies SSA (Social Security Administration)	$314,820	0.2%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and #83 in FY2025; up 16 since Aug 2024–Jul 2025.
65	Therese E Harris Top agencies SSA (Social Security Administration)	$302,859	0.2%	Rank history: #89 in FY2021, not on the FY2022 list, #74 in FY2023, #68 in FY2024 and #77 in FY2025; up 9 since Aug 2024–Jul 2025.
66	Ellen Rozenfeld Top agencies SSA (Social Security Administration)	$299,003	0.2%	Rank history: #37 in FY2021, #28 in FY2022, #40 in FY2023, #37 in FY2024 and #42 in FY2025; down 28 since Aug 2024–Jul 2025.
67	Reddy Leelavathy C Top agencies SSA (Social Security Administration)	$296,500	0.2%	Rank history: #71 in FY2021, not on the FY2022 list, #70 in FY2023, #43 in FY2024 and #41 in FY2025; down 30 since Aug 2024–Jul 2025.
68	Watanabe Enterprises LLC Top agencies VA (Department of Veterans Affairs)	$288,506	0.2%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; down 48 since Aug 2024–Jul 2025.
69	Three Star Government Solutions LLC Top agencies DOI (Department of the Interior)	$286,610	0.2%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70	Derek J. O'brien, M.d., P.C. Top agencies SSA (Social Security Administration)	$282,502	0.2%	Rank history: #87 in FY2021, not on the FY2022–FY2024 lists and #61 in FY2025; down 11 since Aug 2024–Jul 2025.
71	Starace Robert DR Top agencies SSA (Social Security Administration)	$279,587	0.2%	Rank history: #54 in FY2021, #41 in FY2022, #92 in FY2023, #34 in FY2024 and #85 in FY2025; up 10 since Aug 2024–Jul 2025.
72	Robicheau Nicole M Top agencies SSA (Social Security Administration)	$277,560	0.2%	Rank history: #100 in FY2021 and not on the FY2022–FY2025 lists; up 91 since Aug 2024–Jul 2025.
73	Lipetz PSY D Bruce D Top agencies SSA (Social Security Administration)	$271,046	0.2%	Rank history: not on the FY2021–FY2023 lists, #96 in FY2024 and #93 in FY2025; up 61 since Aug 2024–Jul 2025.
74	Annette De PAZ Ortiz Top agencies SSA (Social Security Administration)	$264,380	0.2%	Rank history: #90 in FY2021, not on the FY2022–FY2024 lists and #76 in FY2025; up 15 since Aug 2024–Jul 2025.
75	MHW Pyschlaw Services, Inc. Top agencies SSA (Social Security Administration)	$262,845	0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 15 since Aug 2024–Jul 2025.
76	Caruso-Radin, Inc. Top agencies SSA (Social Security Administration)	$252,168	0.1%	Rank history: #41 in FY2021, #33 in FY2022, #28 in FY2023, #44 in FY2024 and #31 in FY2025; down 53 since Aug 2024–Jul 2025.
77	Stephen D Drake Ph.d Top agencies SSA (Social Security Administration)	$252,078	0.1%	Rank history: not on the FY2021 list, #56 in FY2022, #48 in FY2023, #89 in FY2024 and #75 in FY2025; down 5 since Aug 2024–Jul 2025.
78	DR Sylvia Chen LLC Top agencies SSA (Social Security Administration)	$249,504	0.1%	Rank history: not on the FY2021 list, #78 in FY2022, #84 in FY2023, #67 in FY2024 and #73 in FY2025; down 7 since Aug 2024–Jul 2025.
79	Leaf Leif E PHD Top agencies SSA (Social Security Administration)	$247,989	0.1%	Rank history: not on the FY2021–FY2025 lists; up 29 since Aug 2024–Jul 2025.
80	Janice L Ritch Top agencies SSA (Social Security Administration)	$242,520	0.1%	Rank history: not on the FY2021 list, #68 in FY2022, #73 in FY2023, #66 in FY2024 and #70 in FY2025; down 11 since Aug 2024–Jul 2025.
81	Quarterline Consulting Services, LLC Top agencies USAF (Department of the Air Force)	$240,889	0.1%	Rank history: not on the FY2021–FY2023 lists, #85 in FY2024 and not on the FY2025 list; up 108 since Aug 2024–Jul 2025.
82	GM Psychological Services, Inc. Top agencies SSA (Social Security Administration)	$237,600	0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023, not on the FY2024 list and #88 in FY2025; up 4 since Aug 2024–Jul 2025.
83	Path To Hope and Freedom Inc. Top agencies SSA (Social Security Administration)	$235,379	0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023, #82 in FY2024 and not on the FY2025 list; up 17 since Aug 2024–Jul 2025.
84	Michael Cremerius PHD Top agencies SSA (Social Security Administration)	$233,640	0.1%	Rank history: #73 in FY2021, #55 in FY2022, #51 in FY2023, #49 in FY2024 and #66 in FY2025; down 20 since Aug 2024–Jul 2025.
85	Mildred Rosalie Mcmaster Top agencies SSA (Social Security Administration)	$231,176	0.1%	Rank history: not on the FY2021–FY2025 lists; up 71 since Aug 2024–Jul 2025.
86	Johnson Consultants Inc. Top agencies SSA (Social Security Administration)	$229,177	0.1%	Rank history: not on the FY2021 list, #97 in FY2022, #58 in FY2023, not on the FY2024 list and #43 in FY2025; down 47 since Aug 2024–Jul 2025.
87	Gair, Celine Payne Ph.d Top agencies SSA (Social Security Administration)	$229,062	0.1%	Rank history: #49 in FY2021, not on the FY2022–FY2024 lists and #81 in FY2025; down 10 since Aug 2024–Jul 2025.
88	Myles Friedland Top agencies SSA (Social Security Administration)	$224,871	0.1%	Rank history: #63 in FY2021 and not on the FY2022–FY2025 lists; up 10 since Aug 2024–Jul 2025.
89	Professional Psychological Services - Timothy F. Branaman, Phd., P.C. Top agencies SSA (Social Security Administration)	$221,171	0.1%	Rank history: not on the FY2021–FY2025 lists; up 71 since Aug 2024–Jul 2025.
90	Strand David A Top agencies SSA (Social Security Administration)	$204,906	0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 50 since Aug 2024–Jul 2025.
91	DR Rena M Popma Psyd Top agencies SSA (Social Security Administration)	$204,810	0.1%	Rank history: not on the FY2021–FY2025 lists; up 62 since Aug 2024–Jul 2025.
92	Clare Mcginness Top agencies SSA (Social Security Administration)	$202,860	0.1%	Rank history: not on the FY2021–FY2025 lists; up 17 since Aug 2024–Jul 2025.
93	Wellness & Psychology LLC Top agencies SSA (Social Security Administration)	$201,960	0.1%	Rank history: not on the FY2021–FY2025 lists; up 38 since Aug 2024–Jul 2025.
94	Fitzpatrick Lisa Top agencies SSA (Social Security Administration)	$189,880	0.1%	Rank history: not on the FY2021–FY2025 lists; up 9 since Aug 2024–Jul 2025.
95	Bilik Harvey Top agencies SSA (Social Security Administration)	$189,144	0.1%	Rank history: #60 in FY2021, #89 in FY2022 and not on the FY2023–FY2025 lists; up 22 since Aug 2024–Jul 2025.
96	Robert M Brill Top agencies SSA (Social Security Administration)	$181,060	0.1%	Rank history: not on the FY2021–FY2025 lists; up 63 since Aug 2024–Jul 2025.
97	Duffy Jennifer M Top agencies SSA (Social Security Administration)	$180,401	0.1%	Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; down 3 since Aug 2024–Jul 2025.
98	Modern Psychologist Network LLC Top agencies VA (Department of Veterans Affairs)	$177,600	0.1%	Rank history: not on the FY2021 list, #66 in FY2022, #49 in FY2023, #21 in FY2024 and #54 in FY2025; down 50 since Aug 2024–Jul 2025.
99	Catherine O. Blusiewicz, PHD LLC Top agencies SSA (Social Security Administration)	$174,708	0.1%	Rank history: #70 in FY2021, #80 in FY2022, #85 in FY2023, #88 in FY2024 and #86 in FY2025; down 17 since Aug 2024–Jul 2025.
100	Henry G. Conroe M.d.s.c. Top agencies SSA (Social Security Administration)	$169,724	0.1%	Rank history: #98 in FY2021, #93 in FY2022, #77 in FY2023, not on the FY2024 list and #97 in FY2025; down 5 since Aug 2024–Jul 2025.

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100 of 189 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 $176 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

Who were the top 10 NAICS 621112 contractors in Aug 2025–Jul 2026?

1. Leidos Holdings, Inc. ($52.3M), 2. Dawson Cms, LLC ($26.2M), 3. UnitedHealth Group Incorporated ($11M), 4. Sterling Medical Associates, Inc. ($6.56M), 5. Indian Health Care Resource Center of Tulsa, Inc. ($5.55M), 6. Magnum Medical Overseas JV LLC ($4.6M), 7. Texas Native Health ($2.96M), 8. American Healthcare Services JV LLC ($2.55M), 9. Tribal TECH LLC ($2.52M), 10. National Security Psychological Services LLC ($2.39M).

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