Top 100 Contractors in NAICS 621999: All Other Miscellaneous Ambulatory Health Care Services, FY2022

Name: Top 100 Contractors in NAICS 621999: All Other Miscellaneous Ambulatory Health Care Services, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 77% of FY2022 NAICS 621999 contract dollars

Contract obligations: $1,026,343,811 Net of deobligations, by contracts coded NAICS 621999
Contractors: 224 Parent companies with an obligation
Largest contractor: Walgreen Co. $291 million, 27.5% 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	Walgreen Co. Top agencies HHS (Department of Health and Human Services)	$291,089,472	27.5%	Rank history: not on the FY2021 list, #3 in FY2023 and not on the FY2024–FY2025 lists; new.
2	CVS Health Corporation Through CVS Pharmacy, Inc. Top agencies HHS (Department of Health and Human Services)	$164,206,800	15.5%	Rank history: not on the FY2021 list, #2 in FY2023, #4 in FY2024 and not on the FY2025 list; new.
3	Longview International Technology Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$120,112,200	11.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
4	STG International, Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$117,866,646	11.1%	Rank history: #1 in FY2021, #1 in FY2023, #1 in FY2024 and #8 in FY2025; down 3 since FY2021.
5	Ami Expeditionary Healthcare (USA) LLC Top agencies DHS (Department of Homeland Security)	$49,212,617	4.6%	Rank history: not on the FY2021 list, #4 in FY2023 and not on the FY2024–FY2025 lists; new.
6	Servefed Inc. Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$24,990,873	2.4%	Rank history: #7 in FY2021, #6 in FY2023, #3 in FY2024 and #4 in FY2025; up 1 since FY2021.
7	Indian Health Board of Minneapolis, Inc. Top agencies HHS (Department of Health and Human Services)	$16,092,225	1.5%	Rank history: not on the FY2021 list, #29 in FY2023 and not on the FY2024–FY2025 lists; new.
8	CHS Middle East LLC Through Acuity-Chs, LLC Top agencies DHS (Department of Homeland Security)	$12,735,603	1.2%	Rank history: #4 in FY2021, #11 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
9	Cognito Systems LLC Top agencies Army (Department of the Army)	$11,738,033	1.1%	Rank history: #6 in FY2021, #10 in FY2023, #5 in FY2024 and #7 in FY2025; down 3 since FY2021.
10	Medforce Government Solutions, Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army) USAF (Department of the Air Force)	$9,773,850	0.9%	Rank history: #14 in FY2021, #17 in FY2023, #23 in FY2024 and #29 in FY2025; up 4 since FY2021.
11	Empowered Management Solutions LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$9,400,473	0.9%	Rank history: #9 in FY2021, #20 in FY2023, #18 in FY2024 and not on the FY2025 list; down 2 since FY2021.
12	Dilligas Corp 2 awardees Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$8,384,677	0.8%	Rank history: #36 in FY2021, #7 in FY2023, #12 in FY2024 and #10 in FY2025; up 24 since FY2021.
13	Koniag, Inc. Through Kadiak LLC Top agencies DHS (Department of Homeland Security)	$8,082,183	0.8%	Rank history: #24 in FY2021, #15 in FY2023, #84 in FY2024 and #17 in FY2025; up 11 since FY2021.
14	American Indian Health Service of Chicago Top agencies HHS (Department of Health and Human Services)	$7,852,939	0.7%	Rank history: not on the FY2021 list, #48 in FY2023 and not on the FY2024–FY2025 lists; new.
15	Health Partner's Management Group, Incorporated Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$7,786,006	0.7%	Rank history: #16 in FY2021, #12 in FY2023, #7 in FY2024 and #11 in FY2025; up 1 since FY2021.
16	Quacito LLC Top agencies Army (Department of the Army)	$7,023,114	0.7%	Rank history: #19 in FY2021 and not on the FY2023–FY2025 lists; up 3 since FY2021.
17	Destiny Management Services, LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$6,865,988	0.6%	Rank history: #11 in FY2021, #8 in FY2023, #6 in FY2024 and #13 in FY2025; down 6 since FY2021.
18	American Indian Association of Tucson, Inc. Top agencies HHS (Department of Health and Human Services)	$6,542,655	0.6%	Rank history: #59 in FY2021, #45 in FY2023, #48 in FY2024 and #43 in FY2025; up 41 since FY2021.
19	Avosys Technology, Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$6,490,964	0.6%	Rank history: #17 in FY2021, #9 in FY2023, #17 in FY2024 and #20 in FY2025; down 2 since FY2021.
20	Distinctive Spectrum Healthcare Solutions JV LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$6,122,855	0.6%	Rank history: #20 in FY2021, #18 in FY2023, #27 in FY2024 and #28 in FY2025; unchanged since FY2021.
21	Mindleaf Technologies Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$6,070,214	0.6%	Rank history: #26 in FY2021, #33 in FY2023, #68 in FY2024 and not on the FY2025 list; up 5 since FY2021.
22	American Indian Health and Family Services of Southeastern MI, Inc. Top agencies HHS (Department of Health and Human Services)	$5,504,780	0.5%	Rank history: not on the FY2021 list, #39 in FY2023 and not on the FY2024–FY2025 lists; new.
23	CS Holding Inc. Through CG Services LLC Top agencies DHA (Defense Health Agency)	$5,294,659	0.5%	Rank history: #12 in FY2021, #13 in FY2023, #9 in FY2024 and not on the FY2025 list; down 11 since FY2021.
24	Defense Health Professionals LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$5,240,394	0.5%	Rank history: #23 in FY2021, #25 in FY2023, #25 in FY2024 and #35 in FY2025; down 1 since FY2021.
25	T3I, Inc. Top agencies USAF (Department of the Air Force)	$5,220,399	0.5%	Rank history: #13 in FY2021, #16 in FY2023, #10 in FY2024 and #15 in FY2025; down 12 since FY2021.
26	Seattle Indian Health Board Top agencies HHS (Department of Health and Human Services)	$5,145,574	0.5%	Rank history: #18 in FY2021, #23 in FY2023, #19 in FY2024 and #21 in FY2025; down 8 since FY2021.
27	Gerald L Ignace Indian Health Center Inc. Top agencies HHS (Department of Health and Human Services)	$4,747,358	0.4%	Rank history: not on the FY2021 list, #14 in FY2023 and not on the FY2024–FY2025 lists; new.
28	Forensic Drug & Alcohol Testing LLC Top agencies DOT (Department of Transportation) NRC (Nuclear Regulatory Commission) DOJ (Department of Justice)	$4,567,808	0.4%	Rank history: #34 in FY2021, #24 in FY2023, #15 in FY2024 and #18 in FY2025; up 6 since FY2021.
29	Standard Technology, Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$4,500,533	0.4%	Rank history: #22 in FY2021, #27 in FY2023, #22 in FY2024 and #80 in FY2025; down 7 since FY2021.
30	Anthony & Associates, Inc. 2 awardees Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) Army (Department of the Army)	$3,450,760	0.3%	Rank history: #38 in FY2021, #5 in FY2023, #16 in FY2024 and not on the FY2025 list; up 8 since FY2021.
31	Front Line Ems LLC Top agencies HHS (Department of Health and Human Services)	$3,223,220	0.3%	Rank history: #29 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
32	Urban Indian Center of Salt Lake Top agencies HHS (Department of Health and Human Services)	$3,032,032	0.3%	Rank history: not on the FY2021 list, #43 in FY2023, #45 in FY2024 and #44 in FY2025; new.
33	Eagle Health, LLC Top agencies Army (Department of the Army)	$2,939,731	0.3%	Rank history: #35 in FY2021, #64 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
34	Modern Healthcare Services JV LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$2,909,393	0.3%	Rank history: #27 in FY2021, #30 in FY2023, #34 in FY2024 and #34 in FY2025; down 7 since FY2021.
35	Caban Resources LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$2,857,525	0.3%	Rank history: #37 in FY2021, #19 in FY2023, #20 in FY2024 and #22 in FY2025; up 2 since FY2021.
36	Arapaho Technical Services LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$2,787,026	0.3%	Rank history: #31 in FY2021, #31 in FY2023, #13 in FY2024 and #14 in FY2025; down 5 since FY2021.
37	National Marrow Donor Program Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,779,922	0.3%	Rank history: #2 in FY2021, #73 in FY2023, #88 in FY2024 and #62 in FY2025; down 35 since FY2021.
38	CG Services LLC Top agencies DHA (Defense Health Agency)	$2,525,457	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #8 in FY2024 and #12 in FY2025; new.
39	Akahi Ingenesis Partners LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$2,459,593	0.2%	Rank history: #46 in FY2021, #41 in FY2023, #61 in FY2024 and #76 in FY2025; up 7 since FY2021.
40	The Native American Rehabilitation Association of the Northwest, Incorporated Top agencies HHS (Department of Health and Human Services)	$2,405,622	0.2%	Rank history: #30 in FY2021, #34 in FY2023, #36 in FY2024 and #33 in FY2025; down 10 since FY2021.
41	Business Enabled Acquisition and Technology, Inc. Top agencies DHA (Defense Health Agency)	$2,382,622	0.2%	Rank history: #25 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
42	General Infomatics-A Service Disabled Owned Veteran Business, Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) Army (Department of the Army)	$2,321,253	0.2%	Rank history: #33 in FY2021, #28 in FY2023, #50 in FY2024 and #37 in FY2025; down 9 since FY2021.
43	Erprosource360 LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$2,088,521	0.2%	Rank history: #45 in FY2021, #46 in FY2023, #78 in FY2024 and not on the FY2025 list; up 2 since FY2021.
44	The Chenega Corporation 4 awardees, including Chenega Healthcare Services LLC, American Hospital Services Group LLC and Chenega Reliable Services LLC Top agencies DOE (Department of Energy) WHS (DOD Washington Headquarters Service) USAF (Department of the Air Force)	$1,855,318	0.2%	Rank history: #21 in FY2021, #26 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2021.
45	Indian Health Center of Santa Clara Valley Top agencies HHS (Department of Health and Human Services)	$1,758,491	0.2%	Rank history: #10 in FY2021, #38 in FY2023, #44 in FY2024 and #45 in FY2025; down 35 since FY2021.
46	The Native Project Top agencies HHS (Department of Health and Human Services)	$1,628,967	0.2%	Rank history: #44 in FY2021, #37 in FY2023, #40 in FY2024 and #38 in FY2025; down 2 since FY2021.
47	D7, LLC Top agencies Army (Department of the Army)	$1,460,245	0.1%	Rank history: #50 in FY2021, #44 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
48	Fidelity Partners Services LLC Top agencies Army (Department of the Army)	$1,352,045	0.1%	Rank history: not on the FY2021 list, #50 in FY2023, #53 in FY2024 and #48 in FY2025; new.
49	James Executive Consultant Group LLC Top agencies DHA (Defense Health Agency)	$1,295,731	0.1%	Rank history: not on the FY2021 list, #49 in FY2023, #79 in FY2024 and not on the FY2025 list; new.
50	Apogee Solutions, Inc. Top agencies Navy (Department of the Navy)	$1,246,842	0.1%	Rank history: #54 in FY2021, not on the FY2023 list, #56 in FY2024 and #54 in FY2025; up 4 since FY2021.
51	Capital Med Group LLC Top agencies DOJ (Department of Justice)	$1,209,151	0.1%	Rank history: #69 in FY2021 and not on the FY2023–FY2025 lists; up 18 since FY2021.
52	Fresno American Indian Health Project Top agencies HHS (Department of Health and Human Services)	$1,193,364	0.1%	Rank history: #15 in FY2021, #40 in FY2023, #52 in FY2024 and #50 in FY2025; down 37 since FY2021.
53	Healthcare Resolution Services, Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$1,165,933	0.1%	Rank history: #28 in FY2021, not on the FY2023 list, #80 in FY2024 and not on the FY2025 list; down 25 since FY2021.
54	Johnson Venture Management Solutions, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,160,892	0.1%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
55	UnitedHealth Group Incorporated Through Optumserve Health Services, Inc. Top agencies HHS (Department of Health and Human Services)	$1,144,271	0.1%	Rank history: #47 in FY2021, not on the FY2023 list, #83 in FY2024 and not on the FY2025 list; down 8 since FY2021.
56	Hsg, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,113,677	0.1%	Rank history: #49 in FY2021, #47 in FY2023, #77 in FY2024 and not on the FY2025 list; down 7 since FY2021.
57	Pafford Medical Services, Inc. Top agencies Army (Department of the Army)	$1,049,100	0.1%	Rank history: #53 in FY2021, #81 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
58	Chickasaw Management Services, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,042,393	0.1%	Rank history: #58 in FY2021, #58 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
59	Precision Monitoring LLC Top agencies VA (Department of Veterans Affairs)	$997,404	0.1%	Rank history: #65 in FY2021, #56 in FY2023, #57 in FY2024 and not on the FY2025 list; up 6 since FY2021.
60	Chickasaw Nation Through CNI Professional Services LLC Top agencies USAF (Department of the Air Force)	$994,866	0.1%	Rank history: #55 in FY2021, #51 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
61	Today's Solutions, LLC Top agencies Army (Department of the Army)	$968,524	0.1%	Rank history: #40 in FY2021, not on the FY2023 list, #95 in FY2024 and #95 in FY2025; down 21 since FY2021.
62	Compass Medical Provider LLC Top agencies Army (Department of the Army)	$954,845	0.1%	Rank history: #64 in FY2021, #69 in FY2023, #90 in FY2024 and not on the FY2025 list; up 2 since FY2021.
63	J Allen and Associates of Texas, LLC Top agencies DOJ (Department of Justice)	$950,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
64	Katmai Resource Management LLC Top agencies Army (Department of the Army)	$920,479	0.1%	Rank history: not on the FY2021 list, #57 in FY2023 and not on the FY2024–FY2025 lists; new.
65	Stratus Federal Solutions LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$907,865	0.1%	Rank history: #62 in FY2021, #22 in FY2023, #21 in FY2024 and #24 in FY2025; down 3 since FY2021.
66	Godwin Corp Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$891,727	0.1%	Rank history: #76 in FY2021, #55 in FY2023, #67 in FY2024 and #64 in FY2025; up 10 since FY2021.
67	Interagency Readiness Solutions, LLC Top agencies Army (Department of the Army)	$851,921	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #46 in FY2024 and #53 in FY2025; up 36 since FY2021.
68	Great Hill Solutions, LLC Top agencies DHA (Defense Health Agency)	$846,480	0.1%	Rank history: #48 in FY2021 and not on the FY2023–FY2025 lists; down 20 since FY2021.
69	Distinctive Home Care, Inc. Top agencies Army (Department of the Army)	$824,320	0.1%	Rank history: #75 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
70	JYG Innovations LLC Top agencies USAF (Department of the Air Force)	$751,526	0.1%	Rank history: #66 in FY2021, #74 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
71	Surgical Neuromonitoring Associates, Inc. Top agencies Army (Department of the Army)	$747,825	0.1%	Rank history: not on the FY2021 list, #76 in FY2023, #81 in FY2024 and #75 in FY2025; up 65 since FY2021.
72	Sterling Medical Corporation Through Sterling Medical Associates, Inc. Top agencies USAF (Department of the Air Force)	$733,548	0.1%	Rank history: #56 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
73	Innovative Systems Group of Florida, Inc. Top agencies Army (Department of the Army)	$697,544	0.1%	Rank history: not on the FY2021 list, #67 in FY2023, #60 in FY2024 and #65 in FY2025; new.
74	Parliament LLC Top agencies DODEA (Department of Defense Education Activity)	$696,643	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
75	Decypher Technologies Ltd Top agencies USAF (Department of the Air Force)	$684,561	0.1%	Rank history: #86 in FY2021 and not on the FY2023–FY2025 lists; up 11 since FY2021.
76	2Srg LLC Top agencies DOE (Department of Energy)	$663,196	0.1%	Rank history: #71 in FY2021, #63 in FY2023, #71 in FY2024 and not on the FY2025 list; down 5 since FY2021.
77	T.v. Seshan M.D P.C Top agencies VA (Department of Veterans Affairs)	$634,900	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
78	Vergence LLC Top agencies Army (Department of the Army)	$613,159	0.1%	Rank history: #63 in FY2021, #65 in FY2023, #63 in FY2024 and #58 in FY2025; down 15 since FY2021.
79	Legacy Ems Inc. Top agencies HHS (Department of Health and Human Services)	$589,248	0.1%	Rank history: not on the FY2021 list, #70 in FY2023 and not on the FY2024–FY2025 lists; new.
80	Alpha Ten Technologies Inc. Top agencies Army (Department of the Army)	$551,441	0.1%	Rank history: #77 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
81	Appddictionstudio Limited Liability Company Top agencies USAF (Department of the Air Force)	$542,220	0.1%	Rank history: #78 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
82	Virta Medical PC Top agencies VA (Department of Veterans Affairs)	$528,000	<0.1%	Rank history: #60 in FY2021 and not on the FY2023–FY2025 lists; down 22 since FY2021.
83	American Medical Response Inc. Through American Medical Response Mid-Atlantic, Inc. Top agencies Army (Department of the Army)	$468,706	<0.1%	Rank history: #8 in FY2021, #79 in FY2023 and not on the FY2024–FY2025 lists; down 75 since FY2021.
84	Echelon Services, LLC Top agencies Army (Department of the Army)	$453,655	<0.1%	Rank history: #80 in FY2021, #95 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
85	Venesco LLC Top agencies Army (Department of the Army)	$432,192	<0.1%	Rank history: not on the FY2021 list, #82 in FY2023 and not on the FY2024–FY2025 lists; new.
86	Valor Network, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$429,736	<0.1%	Rank history: #43 in FY2021 and not on the FY2023–FY2025 lists; down 43 since FY2021.
87	Abacus Solutions Group LLC Top agencies USAF (Department of the Air Force)	$415,949	<0.1%	Rank history: #85 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
88	Bgesh Incorporated Top agencies USAF (Department of the Air Force)	$407,080	<0.1%	Rank history: not on the FY2021 list, #71 in FY2023, #72 in FY2024 and #72 in FY2025; new.
89	Epicc Vascular of Nashville LLC Through Line Science LLC Top agencies VA (Department of Veterans Affairs)	$382,100	<0.1%	Rank history: #94 in FY2021, #90 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
90	Healthtronics Stone Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$378,450	<0.1%	Rank history: #88 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
91	Windwalker Group LLC Top agencies Army (Department of the Army)	$376,932	<0.1%	Rank history: #90 in FY2021, #88 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
92	EGA Associates, LLC Top agencies VA (Department of Veterans Affairs)	$372,715	<0.1%	Rank history: not on the FY2021 list, #87 in FY2023 and not on the FY2024–FY2025 lists; up 46 since FY2021.
93	D2 Government Solutions, Inc. Top agencies Army (Department of the Army)	$354,088	<0.1%	Rank history: #92 in FY2021, #59 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
94	Bfrench Consulting LLC Top agencies USAF (Department of the Air Force)	$333,000	<0.1%	Rank history: not on the FY2021 list, #92 in FY2023, #75 in FY2024 and #74 in FY2025; new.
95	Integrated Medical Solutions, LLC Top agencies DOJ (Department of Justice)	$308,035	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 67 since FY2021.
96	Sacramento Native American Health Center Inc. Top agencies HHS (Department of Health and Human Services)	$307,347	<0.1%	Rank history: #83 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
97	National Associates, Inc. Top agencies USAF (Department of the Air Force)	$305,294	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #65 in FY2024 and #49 in FY2025; up 40 since FY2021.
98	Precise Information Systems & Professional Services Inc. Top agencies Army (Department of the Army) DOJ (Department of Justice)	$298,790	<0.1%	Rank history: #73 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
99	Giacare Inc. Top agencies Army (Department of the Army)	$297,293	<0.1%	Rank history: not on the FY2021 list, #96 in FY2023 and not on the FY2024–FY2025 lists; new.
100	Essnova Solutions, Inc. Top agencies Army (Department of the Army)	$289,247	<0.1%	Rank history: not on the FY2021 list, #98 in FY2023 and not on the FY2024–FY2025 lists; new.

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100 of 224 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 $1.06 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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 621999 contractors in FY2022?

1. Walgreen Co. ($291M), 2. CVS Health Corporation ($164M), 3. Longview International Technology Solutions, Inc. ($120M), 4. STG International, Inc. ($118M), 5. Ami Expeditionary Healthcare (USA) LLC ($49.2M), 6. Servefed Inc. ($25M), 7. Indian Health Board of Minneapolis, Inc. ($16.1M), 8. CHS Middle East LLC ($12.7M), 9. Cognito Systems LLC ($11.7M), 10. Medforce Government Solutions, Inc. ($9.77M).

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