Top 100 Contractors in NAICS 62199: All Other Ambulatory Health Care Services, FY2024

Name: Top 100 Contractors in NAICS 62199: All Other Ambulatory Health Care Services, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 43% of FY2024 NAICS 62199 contract dollars

Contract obligations: $427,131,109 Net of deobligations, by contracts coded NAICS 62199 or a code under it
Contractors: 348 Parent companies with an obligation
Largest contractor: STG International, Inc. $131 million, 18.1% 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	STG International, Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$130,941,092	18.1%	Rank history: #1 in FY2021, #4 in FY2022, #1 in FY2023 and #9 in FY2025; unchanged since FY2023.
2	Community Blood Center Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$30,886,791	4.3%	Rank history: not on the FY2021 list, #6 in FY2022, not on the FY2023 list and not on the FY2025 list; up 270 since FY2023.
3	Acuity-Chs, LLC Top agencies DHS (Department of Homeland Security)	$28,571,540	4.0%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
4	The American National Red Cross 4 awardees Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) DOJ (Department of Justice)	$24,993,051	3.5%	Rank history: #3 in FY2021, #7 in FY2022, #6 in FY2023 and #5 in FY2025; up 2 since FY2023.
5	Servefed Inc. Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$20,793,491	2.9%	Rank history: #8 in FY2021, #8 in FY2022, #7 in FY2023 and #4 in FY2025; up 2 since FY2023.
6	CVS Health Corporation Through CVS Pharmacy, Inc. Top agencies HHS (Department of Health and Human Services)	$20,000,000	2.8%	Rank history: not on the FY2021 list, #2 in FY2022, #2 in FY2023 and not on the FY2025 list; down 4 since FY2023.
7	Cognito Systems LLC Top agencies Army (Department of the Army)	$16,150,361	2.2%	Rank history: #7 in FY2021, #11 in FY2022, #11 in FY2023 and #8 in FY2025; up 4 since FY2023.
8	Destiny Management Services, LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$14,939,958	2.1%	Rank history: #12 in FY2021, #20 in FY2022, #9 in FY2023 and #14 in FY2025; up 1 since FY2023.
9	Health Partner's Management Group, Incorporated Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$11,870,023	1.6%	Rank history: #17 in FY2021, #18 in FY2022, #13 in FY2023 and #12 in FY2025; up 4 since FY2023.
10	CG Services LLC Top agencies DHA (Defense Health Agency)	$10,714,934	1.5%	Rank history: not on the FY2021 list, #47 in FY2022, not on the FY2023 list and #13 in FY2025; returned.
11	CS Holding Inc. Through CG Services LLC Top agencies DHA (Defense Health Agency)	$10,702,008	1.5%	Rank history: #13 in FY2021, #28 in FY2022, #16 in FY2023 and not on the FY2025 list; up 5 since FY2023.
12	The Univeristy of Texas M.d. Anderson Cancer Center Top agencies HHS (Department of Health and Human Services)	$9,040,320	1.3%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2025; new.
13	T3I, Inc. Top agencies USAF (Department of the Air Force)	$8,485,596	1.2%	Rank history: #14 in FY2021, #31 in FY2022, #19 in FY2023 and #16 in FY2025; up 6 since FY2023.
14	Dawson Cms, LLC Top agencies Army (Department of the Army)	$8,194,557	1.1%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; up 107 since FY2023.
15	Dilligas Corp Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$7,982,979	1.1%	Rank history: #44 in FY2021, #15 in FY2022, #8 in FY2023 and #11 in FY2025; down 7 since FY2023.
16	Arapaho Technical Services LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$7,898,142	1.1%	Rank history: #38 in FY2021, #46 in FY2022, #38 in FY2023 and #15 in FY2025; up 22 since FY2023.
17	Kadiak LLC Top agencies DHS (Department of Homeland Security)	$7,627,360	1.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
18	Forensic Drug & Alcohol Testing LLC Top agencies DOT (Department of Transportation) NRC (Nuclear Regulatory Commission) DOJ (Department of Justice)	$7,505,244	1.0%	Rank history: #41 in FY2021, #35 in FY2022, #29 in FY2023 and #20 in FY2025; up 11 since FY2023.
19	Anthony & Associates Inc. 2 awardees Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$7,269,677	1.0%	Rank history: #46 in FY2021, #38 in FY2022, #5 in FY2023 and not on the FY2025 list; down 14 since FY2023.
20	Avosys Technology, Inc. 2 awardees Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$6,442,579	0.9%	Rank history: #18 in FY2021, #22 in FY2022, #10 in FY2023 and #23 in FY2025; down 10 since FY2023.
21	Blood Systems Inc. 2 awardees, including Vitalant and Lifestream Blood Bank Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$6,337,299	0.9%	Rank history: #25 in FY2021, #37 in FY2022, #31 in FY2023 and #22 in FY2025; up 10 since FY2023.
22	Empowered Management Solutions LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$5,929,755	0.8%	Rank history: #10 in FY2021, #13 in FY2022, #24 in FY2023 and not on the FY2025 list; up 2 since FY2023.
23	Seattle Indian Health Board Top agencies HHS (Department of Health and Human Services)	$5,829,148	0.8%	Rank history: #19 in FY2021, #33 in FY2022, #28 in FY2023 and #24 in FY2025; up 5 since FY2023.
24	Caban Resources LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$5,726,543	0.8%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2025; up 86 since FY2023.
25	Oneblood, Inc. Top agencies VA (Department of Veterans Affairs)	$5,628,135	0.8%	Rank history: #30 in FY2021, #29 in FY2022, #58 in FY2023 and #28 in FY2025; up 33 since FY2023.
26	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs)	$5,342,332	0.7%	Rank history: #34 in FY2021, #41 in FY2022, #15 in FY2023 and #42 in FY2025; down 11 since FY2023.
27	Allosource Top agencies HHS (Department of Health and Human Services)	$5,299,988	0.7%	Rank history: not on the FY2021 list, #23 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
28	Duke University Top agencies HHS (Department of Health and Human Services)	$4,648,128	0.6%	Rank history: #59 in FY2021, #26 in FY2022, #23 in FY2023 and #32 in FY2025; down 5 since FY2023.
29	Bloodworks Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$4,635,738	0.6%	Rank history: #21 in FY2021, #32 in FY2022, #32 in FY2023 and #31 in FY2025; up 3 since FY2023.
30	Stratus Federal Solutions LLC Top agencies DHA (Defense Health Agency)	$4,332,779	0.6%	Rank history: #77 in FY2021, #86 in FY2022, #26 in FY2023 and #29 in FY2025; down 4 since FY2023.
31	Gift of Hope Organ & Tissue Donor Network Top agencies VA (Department of Veterans Affairs)	$4,287,332	0.6%	Rank history: #48 in FY2021, #57 in FY2022, #20 in FY2023 and #27 in FY2025; down 11 since FY2023.
32	Standard Technology, Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$4,246,125	0.6%	Rank history: #26 in FY2021, #36 in FY2022, #34 in FY2023 and #99 in FY2025; up 2 since FY2023.
33	Medforce Government Solutions, Inc. Top agencies DHA (Defense Health Agency)	$3,960,246	0.5%	Rank history: #15 in FY2021, #12 in FY2022, #21 in FY2023 and #37 in FY2025; down 12 since FY2023.
34	Healthcare Resource Network LLC Top agencies SSA (Social Security Administration)	$3,934,249	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
35	Defense Health Professionals LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$3,729,782	0.5%	Rank history: #27 in FY2021, #30 in FY2022, #30 in FY2023 and #44 in FY2025; down 5 since FY2023.
36	The Arora Group, Inc. Top agencies DHS (Department of Homeland Security)	$3,673,611	0.5%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2025; up 214 since FY2023.
37	Center for Organ Recovery & Education Top agencies VA (Department of Veterans Affairs)	$3,527,523	0.5%	Rank history: #37 in FY2021, #55 in FY2022, #55 in FY2023 and #36 in FY2025; up 18 since FY2023.
38	Amergis Healthcare Staffing, Inc. Top agencies DHS (Department of Homeland Security)	$3,205,069	0.4%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2025; up 213 since FY2023.
39	North East South West Healthcare Solutions, LLC Top agencies DHS (Department of Homeland Security)	$3,200,000	0.4%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; up 206 since FY2023.
40	Ingenesis Inc. Top agencies DHS (Department of Homeland Security)	$3,200,000	0.4%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
41	BG Consulting Services LLC Top agencies USAF (Department of the Air Force)	$3,090,475	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
42	Abbott Laboratories Inc. Through Pembrooke Occupational Health, Inc. Top agencies DOI (Department of the Interior) DOE (Department of Energy) DHS (Department of Homeland Security)	$3,060,683	0.4%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2025; new.
43	Distinctive Spectrum Healthcare Solutions JV LLC Top agencies DHA (Defense Health Agency)	$3,000,769	0.4%	Rank history: #23 in FY2021, #24 in FY2022, #22 in FY2023 and not on the FY2025 list; down 21 since FY2023.
44	Nationwide Healthcare Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$2,928,177	0.4%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
45	Modern Healthcare Services JV LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$2,752,652	0.4%	Rank history: #32 in FY2021, #44 in FY2022, #37 in FY2023 and #43 in FY2025; down 8 since FY2023.
46	Oklahoma Blood Institute Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,691,409	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 93 since FY2023.
47	Katmai Commodities, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$2,611,147	0.4%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #59 in FY2025; up 6 since FY2023.
48	The Native American Rehabilitation Association of the Northwest, Incorporated Top agencies HHS (Department of Health and Human Services)	$2,569,581	0.4%	Rank history: #36 in FY2021, #49 in FY2022, #41 in FY2023 and #41 in FY2025; down 7 since FY2023.
49	Reef Systems Corp Top agencies USAF (Department of the Air Force)	$2,561,789	0.4%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
50	Goldbelt Apex, LLC Top agencies Army (Department of the Army)	$2,265,854	0.3%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and not on the FY2025 list; down 11 since FY2023.
51	New York Blood Center, Inc. 2 awardees Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$2,065,311	0.3%	Rank history: #53 in FY2021, #100 in FY2022, #46 in FY2023 and #45 in FY2025; down 5 since FY2023.
52	Lifegift Organ Donation Center Top agencies VA (Department of Veterans Affairs)	$2,049,882	0.3%	Rank history: #83 in FY2021, #67 in FY2022, #42 in FY2023 and #58 in FY2025; down 10 since FY2023.
53	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 and #46 in FY2025; new.
54	The Native Project Top agencies HHS (Department of Health and Human Services)	$1,944,621	0.3%	Rank history: #55 in FY2021, #60 in FY2022, #47 in FY2023 and #49 in FY2025; down 7 since FY2023.
55	Native American Development Corp Top agencies HHS (Department of Health and Human Services)	$1,824,429	0.3%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023 and #50 in FY2025; down 10 since FY2023.
56	Metropolitan Medical LLC Top agencies DOJ (Department of Justice) National Gallery of Art	$1,755,418	0.2%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
57	National Marrow Donor Program Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$1,744,104	0.2%	Rank history: #2 in FY2021, #39 in FY2022, #49 in FY2023 and #47 in FY2025; down 8 since FY2023.
58	Four Winds Staffing LLC Top agencies HHS (Department of Health and Human Services)	$1,716,955	0.2%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; new.
59	Indian Health Center of Santa Clara Valley Top agencies HHS (Department of Health and Human Services)	$1,698,934	0.2%	Rank history: #11 in FY2021, #59 in FY2022, #48 in FY2023 and #57 in FY2025; down 11 since FY2023.
60	Urban Indian Center of Salt Lake Top agencies HHS (Department of Health and Human Services)	$1,690,829	0.2%	Rank history: not on the FY2021 list, #42 in FY2022, #54 in FY2023 and #56 in FY2025; down 6 since FY2023.
61	Interagency Readiness Solutions, LLC Top agencies Army (Department of the Army)	$1,688,165	0.2%	Rank history: not on the FY2021 list, #88 in FY2022, not on the FY2023 list and #66 in FY2025; up 83 since FY2023.
62	Chenega Healthcare Services LLC Top agencies DOE (Department of Energy)	$1,679,315	0.2%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
63	American Indian Association of Tucson, Inc. Top agencies HHS (Department of Health and Human Services)	$1,597,849	0.2%	Rank history: #74 in FY2021, #21 in FY2022, #57 in FY2023 and #55 in FY2025; down 6 since FY2023.
64	D7, LLC Top agencies Army (Department of the Army)	$1,583,330	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
65	General Infomatics-A Service Disabled Owned Veteran Business, Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$1,560,279	0.2%	Rank history: #40 in FY2021, #51 in FY2022, #35 in FY2023 and #48 in FY2025; down 30 since FY2023.
66	Sequoyah Staffing Agency, LLC Top agencies HHS (Department of Health and Human Services)	$1,555,200	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
67	Fresno American Indian Health Project Top agencies HHS (Department of Health and Human Services)	$1,501,671	0.2%	Rank history: #16 in FY2021, #69 in FY2022, #51 in FY2023 and #63 in FY2025; down 16 since FY2023.
68	Fidelity Partners Services LLC Top agencies Army (Department of the Army)	$1,499,340	0.2%	Rank history: not on the FY2021 list, #63 in FY2022, #63 in FY2023 and #61 in FY2025; down 5 since FY2023.
69	Bestica, Inc. Top agencies DHA (Defense Health Agency)	$1,472,821	0.2%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2025; new.
70	Johnson Venture Management Solutions Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,438,645	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
71	The Leland Stanford Junior University Top agencies VA (Department of Veterans Affairs)	$1,416,221	0.2%	Rank history: #78 in FY2021, #76 in FY2022, #81 in FY2023 and #72 in FY2025; up 10 since FY2023.
72	Carter Bloodcare Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$1,403,297	0.2%	Rank history: #68 in FY2021, #52 in FY2022, #67 in FY2023 and #67 in FY2025; down 5 since FY2023.
73	Mcking Consulting Corporation Top agencies HHS (Department of Health and Human Services)	$1,389,807	0.2%	Rank history: #65 in FY2021, #64 in FY2022, #64 in FY2023 and not on the FY2025 list; down 9 since FY2023.
74	Apogee Solutions, Inc. Top agencies Navy (Department of the Navy)	$1,296,320	0.2%	Rank history: #69 in FY2021, #66 in FY2022, not on the FY2023 list and #68 in FY2025; returned.
75	Precision Monitoring LLC Top agencies VA (Department of Veterans Affairs)	$1,208,010	0.2%	Rank history: #82 in FY2021, #79 in FY2022, #72 in FY2023 and not on the FY2025 list; down 3 since FY2023.
76	Acc3 International Incorporated Top agencies VA (Department of Veterans Affairs)	$1,194,741	0.2%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and not on the FY2025 list; up 20 since FY2023.
77	Biobridge Global Through South Texas Blood & Tissue Center Top agencies Army (Department of the Army)	$1,183,545	0.2%	Rank history: #66 in FY2021, not on the FY2022 list, #90 in FY2023 and not on the FY2025 list; up 13 since FY2023.
78	Muscogee Asset Protection, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,159,217	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; new.
79	Innovative Systems Group of Florida, Inc. Top agencies Army (Department of the Army) DODEA (Department of Defense Education Activity)	$1,149,712	0.2%	Rank history: not on the FY2021 list, #96 in FY2022, #85 in FY2023 and #82 in FY2025; up 6 since FY2023.
80	Blood Connection Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$1,139,052	0.2%	Rank history: #91 in FY2021, #84 in FY2022, #79 in FY2023 and #98 in FY2025; down 1 since FY2023.
81	Akahi Ingenesis Partners LLC Top agencies DHA (Defense Health Agency)	$1,127,384	0.2%	Rank history: #57 in FY2021, #48 in FY2022, #52 in FY2023 and #93 in FY2025; down 29 since FY2023.
82	Csrs3 LLC Top agencies DHA (Defense Health Agency)	$1,003,200	0.1%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; new.
83	Vergence LLC Top agencies Army (Department of the Army)	$962,666	0.1%	Rank history: #79 in FY2021, not on the FY2022 list, #83 in FY2023 and #75 in FY2025; unchanged since FY2023.
84	Adventure Medics LLC Top agencies USDA (Department of Agriculture)	$961,408	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
85	National Associates, Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$939,771	0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; up 84 since FY2023.
86	Prairie Band Health Services Inc. Top agencies HHS (Department of Health and Human Services)	$933,120	0.1%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2025; new.
87	The Abraham J & Phyllis Katz Cord Blood Foundation Top agencies HHS (Department of Health and Human Services)	$895,776	0.1%	Rank history: #92 in FY2021, not on the FY2022 list, #87 in FY2023 and #80 in FY2025; unchanged since FY2023.
88	Godwin Corp Top agencies DHA (Defense Health Agency)	$822,559	0.1%	Rank history: #98 in FY2021, #87 in FY2022, #70 in FY2023 and #81 in FY2025; down 18 since FY2023.
89	Mindleaf Technologies Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$820,273	0.1%	Rank history: #31 in FY2021, #25 in FY2022, #40 in FY2023 and not on the FY2025 list; down 49 since FY2023.
90	Nolen Independent Management LLC Top agencies USDA (Department of Agriculture)	$815,556	0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2025; new.
91	Ghost RX Inc. Top agencies VA (Department of Veterans Affairs)	$800,171	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 46 since FY2023.
92	Rough Country Response LLC Top agencies USDA (Department of Agriculture)	$796,057	0.1%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; new.
93	2Srg LLC Top agencies DOE (Department of Energy)	$751,434	0.1%	Rank history: #89 in FY2021, not on the FY2022 list, #80 in FY2023 and not on the FY2025 list; down 13 since FY2023.
94	Bgesh Incorporated Top agencies USAF (Department of the Air Force)	$748,448	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and #89 in FY2025; down 2 since FY2023.
95	Capital MED Group LLC Top agencies DOJ (Department of Justice)	$706,818	0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #76 in FY2025; down 26 since FY2023.
96	Specialtycare, Inc. 2 awardees, including Specialtycare Cardiovascular Resources, LLC and Specialtycare IOM Services, LLC Top agencies VA (Department of Veterans Affairs)	$685,145	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 98 since FY2023.
97	University of Alabama Health Services Foundation, P.C. Top agencies VA (Department of Veterans Affairs)	$668,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	Bfrench Consulting LLC Top agencies USAF (Department of the Air Force)	$665,461	0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2025; up 24 since FY2023.
99	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)	$648,859	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and not on the FY2025 list; down 13 since FY2023.
100	Liveonny Inc. Top agencies VA (Department of Veterans Affairs)	$634,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.

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100 of 348 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	$296,841,625	STG International, Inc.
621991 Blood and Organ Banks	$130,289,484	Community Blood Center

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 $722 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. 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 NAICS 62199 contractors in FY2024?

1. STG International, Inc. ($131M), 2. Community Blood Center ($30.9M), 3. Acuity-Chs, LLC ($28.6M), 4. The American National Red Cross ($25M), 5. Servefed Inc. ($20.8M), 6. CVS Health Corporation ($20M), 7. Cognito Systems LLC ($16.2M), 8. Destiny Management Services, LLC ($14.9M), 9. Health Partner's Management Group, Incorporated ($11.9M), 10. CG Services LLC ($10.7M).

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