Top 100 Contractors in NAICS 62199: All Other Ambulatory Health Care Services, Aug 2025–Jul 2026

Name: Top 100 Contractors in NAICS 62199: All Other Ambulatory Health Care Services, 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 62199: All Other Ambulatory Health Care Services, FY2025.

The top 10 won 48% of NAICS 62199 contract dollars from August 2025 through July 2026

Contract obligations: $680,004,385 Net of deobligations, by contracts coded NAICS 62199 or a code under it
Contractors: 286 Parent companies with an obligation
Largest contractor: Amergis Healthcare Staffing Inc. $80 million, 10.8% 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	Amergis Healthcare Staffing Inc. Top agencies DHS (Department of Homeland Security)	$79,999,744	10.8%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
2	The Arora Group, Inc. Top agencies DHS (Department of Homeland Security)	$71,635,795	9.7%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #2 in FY2025; up 6 since Aug 2024–Jul 2025.
3	Cognito Systems LLC Top agencies Army (Department of the Army)	$45,756,229	6.2%	Rank history: #7 in FY2021, #11 in FY2022, #11 in FY2023, #7 in FY2024 and #8 in FY2025; up 7 since Aug 2024–Jul 2025.
4	Acuity-Chs, LLC Top agencies DHS (Department of Homeland Security)	$42,786,646	5.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
5	Servefed Inc. Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$27,715,053	3.7%	Rank history: #8 in FY2021, #8 in FY2022, #7 in FY2023, #5 in FY2024 and #4 in FY2025; down 1 since Aug 2024–Jul 2025.
6	The American National Red Cross 2 awardees Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$22,671,839	3.1%	Rank history: #3 in FY2021, #7 in FY2022, #6 in FY2023, #4 in FY2024 and #5 in FY2025; down 1 since Aug 2024–Jul 2025.
7	Ingenesis Inc. Top agencies DHS (Department of Homeland Security)	$18,048,286	2.4%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and #6 in FY2025; up 2 since Aug 2024–Jul 2025.
8	Accenture Federal Services LLC Through Cognosante MVH LLC Top agencies VA (Department of Veterans Affairs)	$16,515,595	2.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
9	Destiny Management Services, LLC Top agencies DHA (Defense Health Agency)	$15,056,124	2.0%	Rank history: #12 in FY2021, #20 in FY2022, #9 in FY2023, #8 in FY2024 and #14 in FY2025; up 7 since Aug 2024–Jul 2025.
10	Medtronic Inc. Through Medtronic Care Management Services, LLC Top agencies VA (Department of Veterans Affairs)	$14,703,257	2.0%	Rank history: not on the FY2021–FY2025 lists; up 196 since Aug 2024–Jul 2025.
11	Koniag, Inc. 2 awardees, including Kadiak LLC and Koniag Professional Services, LLC Top agencies DHS (Department of Homeland Security) DOL (Department of Labor)	$14,375,397	1.9%	Rank history: #28 in FY2021, #16 in FY2022, #18 in FY2023, not on the FY2024 list and #18 in FY2025; up 9 since Aug 2024–Jul 2025.
12	Dawson Cms, LLC Top agencies Army (Department of the Army)	$13,963,297	1.9%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #10 in FY2025; down 1 since Aug 2024–Jul 2025.
13	STG International, Inc. Top agencies HHS (Department of Health and Human Services)	$12,849,858	1.7%	Rank history: #1 in FY2021, #4 in FY2022, #1 in FY2023, #1 in FY2024 and #9 in FY2025; down 12 since Aug 2024–Jul 2025.
14	LMR Technical Group LLC Top agencies USAF (Department of the Air Force)	$12,196,782	1.6%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; down 8 since Aug 2024–Jul 2025.
15	Health Partner's Management Group, Incorporated Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$11,985,877	1.6%	Rank history: #17 in FY2021, #18 in FY2022, #13 in FY2023, #9 in FY2024 and #12 in FY2025; down 2 since Aug 2024–Jul 2025.
16	CG Services LLC Top agencies DHA (Defense Health Agency)	$11,379,006	1.5%	Rank history: not on the FY2021 list, #47 in FY2022, not on the FY2023 list, #10 in FY2024 and #13 in FY2025; down 1 since Aug 2024–Jul 2025.
17	Gift of Hope Organ & Tissue Donor Network Top agencies VA (Department of Veterans Affairs)	$9,671,705	1.3%	Rank history: #48 in FY2021, #57 in FY2022, #20 in FY2023, #31 in FY2024 and #28 in FY2025; up 13 since Aug 2024–Jul 2025.
18	Arapaho Technical Services LLC Top agencies DHA (Defense Health Agency)	$9,629,067	1.3%	Rank history: #38 in FY2021, #46 in FY2022, #38 in FY2023, #16 in FY2024 and #15 in FY2025; unchanged since Aug 2024–Jul 2025.
19	Forensic Drug & Alcohol Testing LLC Top agencies DOT (Department of Transportation) NRC (Nuclear Regulatory Commission) DOJ (Department of Justice)	$9,381,775	1.3%	Rank history: #41 in FY2021, #35 in FY2022, #29 in FY2023, #18 in FY2024 and #20 in FY2025; up 2 since Aug 2024–Jul 2025.
20	University of Texas System 3 awardees, including The Univeristy of Texas M.d. Anderson Cancer Center and The University of Texas Southwestern Medical Center Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) Army (Department of the Army)	$8,941,191	1.2%	Rank history: #22 in FY2021, #14 in FY2022, #14 in FY2023, not on the FY2024 list and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21	Vitalant 2 awardees Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$8,594,848	1.2%	Rank history: #25 in FY2021, #37 in FY2022, #31 in FY2023, #21 in FY2024 and #21 in FY2025; up 2 since Aug 2024–Jul 2025.
22	Kako'o Services LLC Through Nationwide Healthcare Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$8,078,813	1.1%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23	Allosource Top agencies HHS (Department of Health and Human Services)	$6,881,184	0.9%	Rank history: not on the FY2021 list, #23 in FY2022, not on the FY2023 list, #27 in FY2024 and not on the FY2025 list; up 2 since Aug 2024–Jul 2025.
24	Bestica, Inc. 2 awardees, including Stratus Federal Solutions LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$6,422,458	0.9%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and #24 in FY2025; up 74 since Aug 2024–Jul 2025.
25	Dilligas Corp Top agencies DHA (Defense Health Agency)	$6,089,718	0.8%	Rank history: #44 in FY2021, #15 in FY2022, #8 in FY2023, #15 in FY2024 and #11 in FY2025; down 13 since Aug 2024–Jul 2025.
26	T3I, Inc. Top agencies USAF (Department of the Air Force)	$6,034,599	0.8%	Rank history: #14 in FY2021, #31 in FY2022, #19 in FY2023, #13 in FY2024 and #16 in FY2025; down 7 since Aug 2024–Jul 2025.
27	Oneblood, Inc. Top agencies VA (Department of Veterans Affairs)	$5,786,437	0.8%	Rank history: #30 in FY2021, #29 in FY2022, #58 in FY2023, #25 in FY2024 and #29 in FY2025; up 6 since Aug 2024–Jul 2025.
28	Seattle Indian Health Board Top agencies HHS (Department of Health and Human Services)	$5,515,303	0.7%	Rank history: #19 in FY2021, #33 in FY2022, #28 in FY2023, #23 in FY2024 and #25 in FY2025; down 4 since Aug 2024–Jul 2025.
29	Avel Ecare LLC Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) Army (Department of the Army)	$5,277,446	0.7%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; down 3 since Aug 2024–Jul 2025.
30	Katmai Commodities, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$5,208,346	0.7%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023, #47 in FY2024 and #59 in FY2025; up 9 since Aug 2024–Jul 2025.
31	Caban Resources LLC Top agencies DHA (Defense Health Agency)	$5,060,812	0.7%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #26 in FY2025; down 2 since Aug 2024–Jul 2025.
32	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs)	$4,756,320	0.6%	Rank history: #34 in FY2021, #41 in FY2022, #15 in FY2023, #26 in FY2024 and #42 in FY2025; up 2 since Aug 2024–Jul 2025.
33	Center for Organ Recovery & Education Top agencies VA (Department of Veterans Affairs)	$4,647,750	0.6%	Rank history: #37 in FY2021, #55 in FY2022, #55 in FY2023, #37 in FY2024 and #36 in FY2025; up 10 since Aug 2024–Jul 2025.
34	Bloodworks Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$4,633,056	0.6%	Rank history: #21 in FY2021, #32 in FY2022, #32 in FY2023, #29 in FY2024 and #31 in FY2025; up 6 since Aug 2024–Jul 2025.
35	Strategic Resources, Incorporated Through North East South West Healthcare Solutions, LLC Top agencies DHS (Department of Homeland Security)	$4,200,000	0.6%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; new, not ranked in Aug 2024–Jul 2025.
36	LOS Angeles American Indian Health Centers Inc. Top agencies HHS (Department of Health and Human Services)	$3,987,437	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
37	Abbott Laboratories Inc. Through Pembrooke Occupational Health, Inc. Top agencies DOI (Department of the Interior) DHS (Department of Homeland Security) DOE (Department of Energy)	$3,852,768	0.5%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #54 in FY2025; up 15 since Aug 2024–Jul 2025.
38	Medforce Government Solutions, Inc. Top agencies DHA (Defense Health Agency)	$3,717,561	0.5%	Rank history: #15 in FY2021, #12 in FY2022, #21 in FY2023, #33 in FY2024 and #37 in FY2025; up 3 since Aug 2024–Jul 2025.
39	Sword Health Inc. Top agencies DHA (Defense Health Agency)	$2,605,000	0.4%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40	Healthcare Resource Network LLC Top agencies SSA (Social Security Administration)	$2,566,016	0.3%	Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and not on the FY2025 list; down 5 since Aug 2024–Jul 2025.
41	Carter Bloodcare Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$2,551,376	0.3%	Rank history: #68 in FY2021, #52 in FY2022, #67 in FY2023, #72 in FY2024 and #67 in FY2025; up 27 since Aug 2024–Jul 2025.
42	The Chenega Corporation 2 awardees, including Chenega Healthcare Services LLC and Chenega Reliable Services LLC Top agencies DOE (Department of Energy)	$2,551,321	0.3%	Rank history: #24 in FY2021, #58 in FY2022, #33 in FY2023, not on the FY2024 list and #38 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	The Native American Rehabilitation Association of the Northwest, Incorporated Top agencies HHS (Department of Health and Human Services)	$2,543,923	0.3%	Rank history: #36 in FY2021, #49 in FY2022, #41 in FY2023, #48 in FY2024 and #41 in FY2025; up 2 since Aug 2024–Jul 2025.
44	New York Blood Center, Inc. 2 awardees Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$2,446,821	0.3%	Rank history: #53 in FY2021, #100 in FY2022, #46 in FY2023, #51 in FY2024 and #45 in FY2025; up 22 since Aug 2024–Jul 2025.
45	Native American Lifelines, Inc. Top agencies HHS (Department of Health and Human Services)	$2,270,699	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
46	Reef Systems Corp Top agencies USAF (Department of the Air Force)	$2,233,027	0.3%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #30 in FY2025; down 19 since Aug 2024–Jul 2025.
47	South Texas Blood & Tissue Center Top agencies DHA (Defense Health Agency)	$2,159,708	0.3%	Rank history: not on the FY2021 list, #75 in FY2022, not on the FY2023–FY2024 lists and #69 in FY2025; up 7 since Aug 2024–Jul 2025.
48	National Marrow Donor Program Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$2,148,700	0.3%	Rank history: #2 in FY2021, #39 in FY2022, #49 in FY2023, #57 in FY2024 and #47 in FY2025; up 3 since Aug 2024–Jul 2025.
49	Csrs3 LLC Top agencies DHA (Defense Health Agency)	$2,048,370	0.3%	Rank history: not on the FY2021–FY2023 lists, #82 in FY2024 and #40 in FY2025; down 11 since Aug 2024–Jul 2025.
50	University of Arizona Top agencies HHS (Department of Health and Human Services)	$2,045,051	0.3%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #46 in FY2025; down 2 since Aug 2024–Jul 2025.
51	Lifegift Organ Donation Center Top agencies VA (Department of Veterans Affairs)	$1,983,000	0.3%	Rank history: #83 in FY2021, #67 in FY2022, #42 in FY2023, #52 in FY2024 and #58 in FY2025; up 10 since Aug 2024–Jul 2025.
52	Prime Tri Providers LLC Top agencies HHS (Department of Health and Human Services)	$1,978,548	0.3%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Aug 2024–Jul 2025.
53	Metropolitan Medical LLC Top agencies DOJ (Department of Justice) DOI (Department of the Interior)	$1,957,883	0.3%	Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and #53 in FY2025; up 3 since Aug 2024–Jul 2025.
54	General Infomatics-A Service Disabled Owned Veteran Business, Inc. Top agencies DHA (Defense Health Agency)	$1,948,256	0.3%	Rank history: #40 in FY2021, #51 in FY2022, #35 in FY2023, #65 in FY2024 and #48 in FY2025; up 9 since Aug 2024–Jul 2025.
55	The Native Project Top agencies HHS (Department of Health and Human Services)	$1,942,421	0.3%	Rank history: #55 in FY2021, #60 in FY2022, #47 in FY2023, #54 in FY2024 and #49 in FY2025; down 5 since Aug 2024–Jul 2025.
56	San Diego American Indian Health Center Top agencies HHS (Department of Health and Human Services)	$1,896,091	0.3%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; down 1 since Aug 2024–Jul 2025.
57	Urban Indian Center of Salt Lake Top agencies HHS (Department of Health and Human Services)	$1,854,956	0.3%	Rank history: not on the FY2021 list, #42 in FY2022, #54 in FY2023, #60 in FY2024 and #56 in FY2025; up 2 since Aug 2024–Jul 2025.
58	Native American Development Corp Top agencies HHS (Department of Health and Human Services)	$1,824,429	0.2%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023, #55 in FY2024 and #50 in FY2025; down 5 since Aug 2024–Jul 2025.
59	American Indian Association of Tucson, Inc. Top agencies HHS (Department of Health and Human Services)	$1,735,976	0.2%	Rank history: #74 in FY2021, #21 in FY2022, #57 in FY2023, #63 in FY2024 and #55 in FY2025; down 1 since Aug 2024–Jul 2025.
60	Indian Health Center of Santa Clara Valley Top agencies HHS (Department of Health and Human Services)	$1,719,963	0.2%	Rank history: #11 in FY2021, #59 in FY2022, #48 in FY2023, #59 in FY2024 and #57 in FY2025; unchanged since Aug 2024–Jul 2025.
61	Fresno American Indian Health Project Top agencies HHS (Department of Health and Human Services)	$1,616,455	0.2%	Rank history: #16 in FY2021, #69 in FY2022, #51 in FY2023, #67 in FY2024 and #63 in FY2025; up 3 since Aug 2024–Jul 2025.
62	Oklahoma Blood Institute Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,592,292	0.2%	Rank history: not on the FY2021–FY2023 lists, #46 in FY2024 and not on the FY2025 list; up 7 since Aug 2024–Jul 2025.
63	Lifesouth Community Blood Centers Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,549,926	0.2%	Rank history: #49 in FY2021, #54 in FY2022, #43 in FY2023, not on the FY2024 list and #52 in FY2025; up 11 since Aug 2024–Jul 2025.
64	Muscogee Asset Protection, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,501,312	0.2%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #64 in FY2025; up 12 since Aug 2024–Jul 2025.
65	A To Z Management Consulting, LLC Top agencies DHS (Department of Homeland Security)	$1,499,958	0.2%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	Interagency Readiness Solutions, LLC Top agencies Army (Department of the Army)	$1,415,218	0.2%	Rank history: not on the FY2021 list, #88 in FY2022, not on the FY2023 list, #61 in FY2024 and #66 in FY2025; down 20 since Aug 2024–Jul 2025.
67	National Associates, Inc. Top agencies DHA (Defense Health Agency)	$1,395,302	0.2%	Rank history: not on the FY2021–FY2023 lists, #85 in FY2024 and #62 in FY2025; down 2 since Aug 2024–Jul 2025.
68	Vergence LLC Top agencies Army (Department of the Army)	$1,353,869	0.2%	Rank history: #79 in FY2021, not on the FY2022 list, #83 in FY2023, #83 in FY2024 and #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
69	Versiti Blood Health, Inc. 2 awardees, including Versiti Indiana, Inc. Top agencies VA (Department of Veterans Affairs)	$1,328,730	0.2%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023, not on the FY2024 list and #77 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70	Laredo Technical Services, Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$1,325,452	0.2%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 3 since Aug 2024–Jul 2025.
71	Prairie Band Health Services Inc. Top agencies HHS (Department of Health and Human Services)	$1,302,960	0.2%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #96 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72	Backcountry Response, LLC Top agencies USDA (Department of Agriculture)	$1,286,556	0.2%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; up 133 since Aug 2024–Jul 2025.
73	Godwin Corp Top agencies DHA (Defense Health Agency)	$1,263,695	0.2%	Rank history: #98 in FY2021, #87 in FY2022, #70 in FY2023, #88 in FY2024 and #80 in FY2025; up 18 since Aug 2024–Jul 2025.
74	Capital MED Group LLC Top agencies DOJ (Department of Justice)	$1,256,245	0.2%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023, #95 in FY2024 and #76 in FY2025; down 3 since Aug 2024–Jul 2025.
75	Avosys Technology, Inc. Top agencies DHA (Defense Health Agency)	$1,253,971	0.2%	Rank history: #18 in FY2021, #22 in FY2022, #10 in FY2023, #20 in FY2024 and #23 in FY2025; down 53 since Aug 2024–Jul 2025.
76	Human Resources Research Organization (Humrro) Top agencies DHS (Department of Homeland Security)	$1,236,569	0.2%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; new, not ranked in Aug 2024–Jul 2025.
77	Blackwoods Emergency Resources LLC Top agencies USDA (Department of Agriculture)	$1,139,860	0.2%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
78	Distinctive Health Spectrum Care JV LLC Through Distinctive Spectrum Healthcare Solutions JV LLC Top agencies DHA (Defense Health Agency)	$1,138,096	0.2%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; down 41 since Aug 2024–Jul 2025.
79	Emergency Response Logistics, LLC Top agencies USDA (Department of Agriculture)	$1,098,049	0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 95 since Aug 2024–Jul 2025.
80	Dt-Trak Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$1,078,605	0.1%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023, not on the FY2024 list and #70 in FY2025; up 5 since Aug 2024–Jul 2025.
81	Naphcare LLC Top agencies DOJ (Department of Justice)	$1,056,360	0.1%	Rank history: #39 in FY2021, not on the FY2022 list, #99 in FY2023 and not on the FY2024–FY2025 lists; up 38 since Aug 2024–Jul 2025.
82	Modern Healthcare Services JV LLC Top agencies DHA (Defense Health Agency)	$1,032,425	0.1%	Rank history: #32 in FY2021, #44 in FY2022, #37 in FY2023, #45 in FY2024 and #43 in FY2025; down 35 since Aug 2024–Jul 2025.
83	2Srg Inc. Top agencies DOE (Department of Energy)	$980,679	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; up 3 since Aug 2024–Jul 2025.
84	Blood Centers of America, Inc. Top agencies DHA (Defense Health Agency)	$977,750	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
85	Anthony & Associates, Inc. Top agencies DHA (Defense Health Agency)	$939,155	0.1%	Rank history: #46 in FY2021, #38 in FY2022, #5 in FY2023, #19 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
86	Alltech Ventures LLC Top agencies DHA (Defense Health Agency)	$910,650	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	The Leland Stanford Junior University Top agencies VA (Department of Veterans Affairs)	$898,721	0.1%	Rank history: #78 in FY2021, #76 in FY2022, #81 in FY2023, #71 in FY2024 and #72 in FY2025; down 15 since Aug 2024–Jul 2025.
88	Dentrust Dental International, Inc. Top agencies DOJ (Department of Justice)	$877,093	0.1%	Rank history: not on the FY2021–FY2025 lists; up 25 since Aug 2024–Jul 2025.
89	Bfrench Consulting LLC Top agencies DHA (Defense Health Agency)	$859,423	0.1%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and #91 in FY2025; up 6 since Aug 2024–Jul 2025.
90	Quest Diagnostics Incorporated Through Quest Diagnostics Clinical Laboratories, Inc. Top agencies DOI (Department of the Interior) DOJ (Department of Justice) DHS (Department of Homeland Security)	$820,774	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023, #99 in FY2024 and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
91	Correctional Dialysis Services LLC Top agencies DOJ (Department of Justice)	$820,096	0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; down 1 since Aug 2024–Jul 2025.
92	Four Winds Staffing LLC Top agencies HHS (Department of Health and Human Services)	$816,183	0.1%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #34 in FY2025; down 50 since Aug 2024–Jul 2025.
93	Bgesh Incorporated Top agencies DHA (Defense Health Agency)	$775,396	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023, #94 in FY2024 and #89 in FY2025; unchanged since Aug 2024–Jul 2025.
94	Yellow Tarp Ems LLC Top agencies USDA (Department of Agriculture)	$760,682	0.1%	Rank history: not on the FY2021–FY2025 lists; up 35 since Aug 2024–Jul 2025.
95	Specialtycare, Inc. Through Specialtycare Cardiovascular Resources, LLC Top agencies VA (Department of Veterans Affairs)	$752,508	0.1%	Rank history: not on the FY2021–FY2023 lists, #96 in FY2024 and #85 in FY2025; new, not ranked in Aug 2024–Jul 2025.
96	UnitedHealth Group Incorporated Through Optumserve Health Services, Inc. Top agencies HHS (Department of Health and Human Services)	$746,681	0.1%	Rank history: #58 in FY2021, #73 in FY2022 and not on the FY2023–FY2025 lists; up 30 since Aug 2024–Jul 2025.
97	Paragonix Technologies Inc. Top agencies VA (Department of Veterans Affairs)	$728,816	0.1%	Rank history: not on the FY2021–FY2025 lists; up 18 since Aug 2024–Jul 2025.
98	Liveonny Inc. Top agencies VA (Department of Veterans Affairs)	$724,000	0.1%	Rank history: not on the FY2021–FY2023 lists, #100 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
99	Minuteman Ems LLC Top agencies USDA (Department of Agriculture)	$708,370	0.1%	Rank history: not on the FY2021–FY2025 lists; up 124 since Aug 2024–Jul 2025.
100	Apogee Solutions, Inc. Top agencies Navy (Department of the Navy)	$660,938	0.1%	Rank history: #69 in FY2021, #66 in FY2022, not on the FY2023 list, #74 in FY2024 and #68 in FY2025; down 30 since Aug 2024–Jul 2025.

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100 of 286 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 62199

Code	Net obligations	Largest contractor
621999 All Other Miscellaneous Ambulatory Health Care Services	$580,919,446	Amergis Healthcare Staffing Inc.
621991 Blood and Organ Banks	$99,084,939	The American National Red Cross

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 $740 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 62199 contractors in Aug 2025–Jul 2026?

1. Amergis Healthcare Staffing Inc. ($80M), 2. The Arora Group, Inc. ($71.6M), 3. Cognito Systems LLC ($45.8M), 4. Acuity-Chs, LLC ($42.8M), 5. Servefed Inc. ($27.7M), 6. The American National Red Cross ($22.7M), 7. Ingenesis Inc. ($18M), 8. Accenture Federal Services LLC ($16.5M), 9. Destiny Management Services, LLC ($15.1M), 10. Medtronic Inc. ($14.7M).

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