Top 100 Contractors in NAICS 621910: Ambulance Services, FY2022

Name: Top 100 Contractors in NAICS 621910: Ambulance Services, FY2022
Creator: GovTribe

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

The top 10 won 50% of FY2022 NAICS 621910 contract dollars

Contract obligations: $332,037,354 Net of deobligations, by contracts coded NAICS 621910
Contractors: 212 Parent companies with an obligation
Largest contractor: American Medical Response Inc. $179 million, 36.1% 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	American Medical Response Inc. 23 awardees, including Life Line Ambulance Service, Inc., Abbott Ambulance, Inc. and Lifefleet Southeast Inc. Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$179,172,357	36.1%	Rank history: #1 in FY2021, not on the FY2023 list, #1 in FY2024 and #1 in FY2025; unchanged since FY2021.
2	Excelsior Ambulance Service Inc. Top agencies VA (Department of Veterans Affairs)	$14,202,659	2.9%	Rank history: #5 in FY2021, #1 in FY2023, #2 in FY2024 and #2 in FY2025; up 3 since FY2021.
3	United Medevac Solutions, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$11,069,837	2.2%	Rank history: #2 in FY2021, #3 in FY2023, #5 in FY2024 and #15 in FY2025; down 1 since FY2021.
4	Jan-Care Ambulance of North Central W.va., Inc. Top agencies VA (Department of Veterans Affairs)	$8,650,793	1.7%	Rank history: #6 in FY2021, #8 in FY2023, #6 in FY2024 and #5 in FY2025; up 2 since FY2021.
5	Acadian Ambulance Service Inc. 2 awardees, including Acadian Ambulance Service of Tennessee, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) Army (Department of the Army)	$8,566,290	1.7%	Rank history: #4 in FY2021, #4 in FY2023, #4 in FY2024 and #14 in FY2025; down 1 since FY2021.
6	Reliance Medical Transport, LLC Top agencies VA (Department of Veterans Affairs)	$8,347,679	1.7%	Rank history: #15 in FY2021, #2 in FY2023, #3 in FY2024 and #3 in FY2025; up 9 since FY2021.
7	Medex Medical Transport Service Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$4,703,869	0.9%	Rank history: #22 in FY2021, #7 in FY2023, #21 in FY2024 and #6 in FY2025; up 15 since FY2021.
8	Lifeline Medical Services, Inc. Top agencies VA (Department of Veterans Affairs)	$4,676,349	0.9%	Rank history: #16 in FY2021, #34 in FY2023, #23 in FY2024 and #22 in FY2025; up 8 since FY2021.
9	Mercy Air Service Inc Top agencies Navy (Department of the Navy)	$4,514,014	0.9%	Rank history: not on the FY2021 list, #11 in FY2023 and not on the FY2024–FY2025 lists; new.
10	Rocky Mountain Holdings L.L.C 2 awardees, including Air Methods, LLC Top agencies Army (Department of the Army) DOJ (Department of Justice)	$4,458,308	0.9%	Rank history: #8 in FY2021, #10 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
11	Journey Via Gurney, LLC Top agencies VA (Department of Veterans Affairs)	$4,234,421	0.9%	Rank history: #13 in FY2021, #14 in FY2023, #10 in FY2024 and #13 in FY2025; up 2 since FY2021.
12	Lifecare of Alabama Inc. Top agencies VA (Department of Veterans Affairs)	$4,067,878	0.8%	Rank history: #11 in FY2021, #63 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
13	Bradsher, James E Top agencies VA (Department of Veterans Affairs)	$3,613,401	0.7%	Rank history: #14 in FY2021, #20 in FY2023, #17 in FY2024 and #35 in FY2025; up 1 since FY2021.
14	Ohio Ambulance Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$3,541,209	0.7%	Rank history: not on the FY2021 list, #22 in FY2023, not on the FY2024 list and #18 in FY2025; up 110 since FY2021.
15	Brewster Ambulance Service Inc. Top agencies VA (Department of Veterans Affairs)	$3,068,442	0.6%	Rank history: #7 in FY2021, #21 in FY2023, not on the FY2024 list and #83 in FY2025; down 8 since FY2021.
16	American Medical Response of Tennessee Inc. Top agencies VA (Department of Veterans Affairs)	$3,019,936	0.6%	Rank history: #12 in FY2021, #12 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
17	Front Line Ems LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$3,016,775	0.6%	Rank history: #18 in FY2021, #16 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
18	Ambulance Management Services Limited Top agencies VA (Department of Veterans Affairs)	$2,950,180	0.6%	Rank history: #19 in FY2021, #9 in FY2023, #14 in FY2024 and #19 in FY2025; up 1 since FY2021.
19	Western-Star Hospital Authority Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$2,908,040	0.6%	Rank history: #30 in FY2021, #6 in FY2023, not on the FY2024 list and #41 in FY2025; up 11 since FY2021.
20	Jcsd Emergency Medical Group, Inc. Through Medicone Medical Response of Tennessee, Inc. Top agencies VA (Department of Veterans Affairs)	$2,799,130	0.6%	Rank history: #49 in FY2021, #19 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2021.
21	HVM Associates LLC Top agencies VA (Department of Veterans Affairs)	$2,790,076	0.6%	Rank history: #42 in FY2021, #13 in FY2023, #63 in FY2024 and #56 in FY2025; up 21 since FY2021.
22	Abbott Ambulance, Inc. Top agencies VA (Department of Veterans Affairs)	$2,782,731	0.6%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #39 in FY2025; new.
23	Mayo Clinic Through Mayo Clinic Ambulance Top agencies VA (Department of Veterans Affairs)	$2,424,860	0.5%	Rank history: #72 in FY2021, #32 in FY2023 and not on the FY2024–FY2025 lists; up 49 since FY2021.
24	Procare Ambulance of Maryland, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) USAF (Department of the Air Force)	$2,387,770	0.5%	Rank history: #28 in FY2021, #30 in FY2023, #30 in FY2024 and not on the FY2025 list; up 4 since FY2021.
25	Triple Canopy Inc. Through Centerra Group, LLC Top agencies DOS (Department of State)	$2,301,691	0.5%	Rank history: #33 in FY2021, #65 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2021.
26	Navarre Corporation Top agencies VA (Department of Veterans Affairs)	$2,056,500	0.4%	Rank history: not on the FY2021 list, #28 in FY2023, #22 in FY2024 and #33 in FY2025; new.
27	Emergycare Inc. Top agencies VA (Department of Veterans Affairs)	$2,000,075	0.4%	Rank history: #84 in FY2021, #23 in FY2023, #50 in FY2024 and #52 in FY2025; up 57 since FY2021.
28	Coordinated Transportation Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$1,987,754	0.4%	Rank history: #38 in FY2021, not on the FY2023 list, #40 in FY2024 and #77 in FY2025; up 10 since FY2021.
29	Freedom-Elite Joint Venture Top agencies VA (Department of Veterans Affairs)	$1,828,378	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 73 since FY2021.
30	First Care Ohio LLC Top agencies VA (Department of Veterans Affairs)	$1,827,342	0.4%	Rank history: #25 in FY2021, #18 in FY2023, #7 in FY2024 and #9 in FY2025; down 5 since FY2021.
31	Rico Aviation, LLC Top agencies VA (Department of Veterans Affairs)	$1,721,109	0.3%	Rank history: not on the FY2021 list, #50 in FY2023 and not on the FY2024–FY2025 lists; up 90 since FY2021.
32	Washington County - Johnson City Emergency Medical Services, Inc. Top agencies VA (Department of Veterans Affairs)	$1,649,506	0.3%	Rank history: #32 in FY2021, #17 in FY2023, #69 in FY2024 and #63 in FY2025; unchanged since FY2021.
33	Crest Transportation Services Inc. Top agencies VA (Department of Veterans Affairs)	$1,639,385	0.3%	Rank history: #63 in FY2021, #40 in FY2023 and not on the FY2024–FY2025 lists; up 30 since FY2021.
34	Minuteman Ems LLC Top agencies HHS (Department of Health and Human Services)	$1,610,560	0.3%	Rank history: not on the FY2021 list, #24 in FY2023, #31 in FY2024 and #50 in FY2025; new.
35	Portsmouth Medic Transport LLC Top agencies VA (Department of Veterans Affairs)	$1,573,067	0.3%	Rank history: #34 in FY2021, #45 in FY2023, #52 in FY2024 and #76 in FY2025; down 1 since FY2021.
36	Legacy Ems Inc. Top agencies USAF (Department of the Air Force)	$1,571,399	0.3%	Rank history: #79 in FY2021, #15 in FY2023, #41 in FY2024 and #23 in FY2025; up 43 since FY2021.
37	Blackhawk Medical Transportation Inc. Top agencies VA (Department of Veterans Affairs)	$1,566,573	0.3%	Rank history: #36 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
38	Asteri Consulting Services LLC Top agencies USAF (Department of the Air Force)	$1,548,075	0.3%	Rank history: #39 in FY2021, #37 in FY2023, #89 in FY2024 and not on the FY2025 list; up 1 since FY2021.
39	Inflight Medical Services International, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$1,444,664	0.3%	Rank history: #52 in FY2021, #55 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2021.
40	Priority One Medical Transport Inc. Top agencies VA (Department of Veterans Affairs)	$1,443,827	0.3%	Rank history: #35 in FY2021, #53 in FY2023, #25 in FY2024 and #36 in FY2025; down 5 since FY2021.
41	Liberty Ambulance LLC Top agencies VA (Department of Veterans Affairs)	$1,374,794	0.3%	Rank history: #43 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
42	Bay Cities Ambulance Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,372,509	0.3%	Rank history: #40 in FY2021, #54 in FY2023, #75 in FY2024 and not on the FY2025 list; down 2 since FY2021.
43	CLV Enterprises, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,371,293	0.3%	Rank history: #23 in FY2021, #44 in FY2023 and not on the FY2024–FY2025 lists; down 20 since FY2021.
44	Able Ambulance, Inc. Top agencies VA (Department of Veterans Affairs)	$1,370,177	0.3%	Rank history: #26 in FY2021, #59 in FY2023 and not on the FY2024–FY2025 lists; down 18 since FY2021.
45	Wilderness Medics, Inc. Top agencies USDA (Department of Agriculture)	$1,360,933	0.3%	Rank history: #24 in FY2021, #33 in FY2023, #27 in FY2024 and #46 in FY2025; down 21 since FY2021.
46	Haynes Ambulance of Alabama Inc. Top agencies USAF (Department of the Air Force)	$1,261,827	0.3%	Rank history: #47 in FY2021, #100 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
47	Medstar Ambulance, Inc. 2 awardees Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$1,261,000	0.3%	Rank history: #58 in FY2021, #77 in FY2023, #88 in FY2024 and #91 in FY2025; up 11 since FY2021.
48	Huron Valley Ambulance Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$1,141,091	0.2%	Rank history: #57 in FY2021, #90 in FY2023, not on the FY2024 list and #61 in FY2025; up 9 since FY2021.
49	Northeast Mobile Health Services Top agencies VA (Department of Veterans Affairs)	$1,113,063	0.2%	Rank history: #44 in FY2021, #57 in FY2023, #42 in FY2024 and not on the FY2025 list; down 5 since FY2021.
50	Paramedic Systems Inc Through Alert Ambulance Service, Inc. Top agencies VA (Department of Veterans Affairs)	$1,108,327	0.2%	Rank history: #27 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2021.
51	Careflight Limited Top agencies Navy (Department of the Navy)	$1,038,720	0.2%	Rank history: #31 in FY2021 and not on the FY2023–FY2025 lists; down 20 since FY2021.
52	Fireline Medics LLC Top agencies USDA (Department of Agriculture)	$1,030,815	0.2%	Rank history: #9 in FY2021, #31 in FY2023, #60 in FY2024 and not on the FY2025 list; down 43 since FY2021.
53	American Transmed Inc. Top agencies VA (Department of Veterans Affairs)	$1,027,008	0.2%	Rank history: #67 in FY2021 and not on the FY2023–FY2025 lists; up 14 since FY2021.
54	Caribe Medical Supply Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DODEA (Department of Defense Education Activity)	$962,440	0.2%	Rank history: #46 in FY2021, #81 in FY2023, #64 in FY2024 and #80 in FY2025; down 8 since FY2021.
55	K & W Medical Services, Inc. Top agencies VA (Department of Veterans Affairs)	$865,974	0.2%	Rank history: #60 in FY2021, #38 in FY2023, #51 in FY2024 and #57 in FY2025; up 5 since FY2021.
56	L-J-L Trucking, Inc. Top agencies VA (Department of Veterans Affairs)	$855,749	0.2%	Rank history: #51 in FY2021, #39 in FY2023, #54 in FY2024 and #82 in FY2025; down 5 since FY2021.
57	Sacred Mountain Medical Service, Inc. Top agencies HHS (Department of Health and Human Services)	$848,000	0.2%	Rank history: not on the FY2021 list, #74 in FY2023, #74 in FY2024 and not on the FY2025 list; new.
58	Bernalillo County Health Care Corp Top agencies USAF (Department of the Air Force)	$804,424	0.2%	Rank history: #62 in FY2021, #76 in FY2023, #85 in FY2024 and #87 in FY2025; up 4 since FY2021.
59	D.p. Murphy Ambulance Company Top agencies VA (Department of Veterans Affairs)	$797,622	0.2%	Rank history: #76 in FY2021, #78 in FY2023, #55 in FY2024 and not on the FY2025 list; up 17 since FY2021.
60	Bay Medic Transportation Inc. Top agencies VA (Department of Veterans Affairs)	$796,953	0.2%	Rank history: #17 in FY2021, #51 in FY2023, #47 in FY2024 and #28 in FY2025; down 43 since FY2021.
61	Remote Medicine Inc. Top agencies Navy (Department of the Navy)	$781,869	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 69 since FY2021.
62	Metro West Ambulance Service, Inc. Top agencies VA (Department of Veterans Affairs)	$771,634	0.2%	Rank history: not on the FY2021 list, #83 in FY2023, #43 in FY2024 and #43 in FY2025; up 115 since FY2021.
63	Trans-Med Ambulance Inc. Top agencies VA (Department of Veterans Affairs)	$745,073	0.2%	Rank history: #53 in FY2021, #75 in FY2023, #71 in FY2024 and #92 in FY2025; down 10 since FY2021.
64	Med Transport Inc. Top agencies USDA (Department of Agriculture)	$727,476	0.1%	Rank history: #85 in FY2021, #89 in FY2023, #99 in FY2024 and #98 in FY2025; up 21 since FY2021.
65	Butler County Ems LLC Top agencies VA (Department of Veterans Affairs)	$714,331	0.1%	Rank history: #64 in FY2021, #88 in FY2023, #82 in FY2024 and #68 in FY2025; down 1 since FY2021.
66	Lifeguard Ambulance Service LLC Top agencies VA (Department of Veterans Affairs)	$691,261	0.1%	Rank history: #87 in FY2021 and not on the FY2023–FY2025 lists; up 21 since FY2021.
67	Med-Care Transportation LLC Top agencies VA (Department of Veterans Affairs)	$682,796	0.1%	Rank history: #91 in FY2021, #72 in FY2023, #37 in FY2024 and not on the FY2025 list; up 24 since FY2021.
68	North Memorial Health Care Top agencies VA (Department of Veterans Affairs)	$681,691	0.1%	Rank history: #82 in FY2021, #60 in FY2023, #68 in FY2024 and not on the FY2025 list; up 14 since FY2021.
69	Medstar, Inc. Top agencies VA (Department of Veterans Affairs)	$667,978	0.1%	Rank history: #69 in FY2021, #68 in FY2023, #100 in FY2024 and #95 in FY2025; unchanged since FY2021.
70	Mercy Ambulance of Evansville, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$659,727	0.1%	Rank history: #59 in FY2021, #35 in FY2023, not on the FY2024 list and #88 in FY2025; down 11 since FY2021.
71	AC Global Air Ambulance, LLC Top agencies VA (Department of Veterans Affairs)	$632,411	0.1%	Rank history: #89 in FY2021, #86 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2021.
72	Techs Inc. Top agencies VA (Department of Veterans Affairs)	$594,000	0.1%	Rank history: #54 in FY2021, #97 in FY2023 and not on the FY2024–FY2025 lists; down 18 since FY2021.
73	Mid Atlantic Care LLC Top agencies VA (Department of Veterans Affairs)	$542,966	0.1%	Rank history: #96 in FY2021, #93 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2021.
74	Lifestar Response Corporation 2 awardees, including RG Ambulance Service, Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy)	$537,150	0.1%	Rank history: #65 in FY2021, #70 in FY2023, #65 in FY2024 and #60 in FY2025; down 9 since FY2021.
75	Rocky Mountain Ambulance, L.L.C. Top agencies VA (Department of Veterans Affairs)	$525,689	0.1%	Rank history: #78 in FY2021 and not on the FY2023–FY2025 lists; up 3 since FY2021.
76	Richmond County Ambulance Service, Inc. Top agencies VA (Department of Veterans Affairs)	$525,191	0.1%	Rank history: #48 in FY2021, #66 in FY2023 and not on the FY2024–FY2025 lists; down 28 since FY2021.
77	Action Ambulance Service Inc. Top agencies USAF (Department of the Air Force)	$525,000	0.1%	Rank history: #83 in FY2021, #94 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
78	Mercy Flights, Inc. Top agencies VA (Department of Veterans Affairs)	$519,913	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 28 since FY2021.
79	Children's National Medical Center Top agencies DHA (Defense Health Agency)	$488,632	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #87 in FY2024 and not on the FY2025 list; up 68 since FY2021.
80	K.w.p.h. Enterprises Top agencies VA (Department of Veterans Affairs)	$487,269	0.1%	Rank history: #56 in FY2021, #95 in FY2023 and not on the FY2024–FY2025 lists; down 24 since FY2021.
81	Adventure Medics LLC Top agencies USDA (Department of Agriculture)	$475,351	0.1%	Rank history: #29 in FY2021, #52 in FY2023, #28 in FY2024 and #31 in FY2025; down 52 since FY2021.
82	The University of Alabama System Through University of Alabama At Birmingham Top agencies VA (Department of Veterans Affairs)	$473,952	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 28 since FY2021.
83	County of Cabell Through Cabell County Emergency Services Top agencies VA (Department of Veterans Affairs)	$464,818	0.1%	Rank history: #81 in FY2021, #25 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
84	Integrity Care Ems Inc. Top agencies VA (Department of Veterans Affairs)	$454,717	0.1%	Rank history: #98 in FY2021, #69 in FY2023, #73 in FY2024 and not on the FY2025 list; up 14 since FY2021.
85	Portsmouth Emergency Ambulance Service Inc. Top agencies VA (Department of Veterans Affairs)	$441,686	0.1%	Rank history: #61 in FY2021, #73 in FY2023, not on the FY2024 list and #55 in FY2025; down 24 since FY2021.
86	Clarion Medical Top agencies VA (Department of Veterans Affairs)	$440,862	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 55 since FY2021.
87	Mobile Medical Response, Inc. Top agencies VA (Department of Veterans Affairs)	$424,434	0.1%	Rank history: #90 in FY2021, #91 in FY2023, #98 in FY2024 and not on the FY2025 list; up 3 since FY2021.
88	Action Care Ambulance, Inc. Top agencies VA (Department of Veterans Affairs)	$403,593	0.1%	Rank history: #55 in FY2021, #82 in FY2023 and not on the FY2024–FY2025 lists; down 33 since FY2021.
89	Injury Care Emergency Medical Services PC Top agencies USDA (Department of Agriculture)	$366,481	0.1%	Rank history: not on the FY2021 list, #96 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2021.
90	Emergency Physicians Medical Group P.C. Through Professional Medical Transport, Inc. Top agencies VA (Department of Veterans Affairs)	$358,647	0.1%	Rank history: #68 in FY2021, #29 in FY2023, #38 in FY2024 and not on the FY2025 list; down 22 since FY2021.
91	Huntsville Emergency Medical Services, Incorporated Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice)	$353,318	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 24 since FY2021.
92	Proelite International Trading WLL Top agencies Navy (Department of the Navy)	$352,128	0.1%	Rank history: #99 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
93	Airmed Response LLC Top agencies VA (Department of Veterans Affairs)	$351,684	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 44 since FY2021.
94	Paramedics Logistics South Dakota LLC Top agencies VA (Department of Veterans Affairs)	$310,491	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 52 since FY2021.
95	Childrens Hospital of the Kings Daughters, Incorporated Top agencies DHA (Defense Health Agency)	$292,251	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 16 since FY2021.
96	Freestate Transportation LLC Top agencies VA (Department of Veterans Affairs)	$287,081	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #57 in FY2024 and not on the FY2025 list; up 47 since FY2021.
97	Avia Solutions LLC Top agencies VA (Department of Veterans Affairs)	$286,209	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
98	Ambulnz Holdings, LLC Top agencies VA (Department of Veterans Affairs)	$284,700	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
99	Midwest Ambulance Service of Iowa Inc. Top agencies VA (Department of Veterans Affairs)	$284,463	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 10 since FY2021.
100	Hunter Ems, Inc. Top agencies VA (Department of Veterans Affairs)	$276,758	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 13 since FY2021.

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100 of 212 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 $496 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 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 621910 contractors in FY2022?

1. American Medical Response Inc. ($179M), 2. Excelsior Ambulance Service Inc. ($14.2M), 3. United Medevac Solutions, Inc. ($11.1M), 4. Jan-Care Ambulance of North Central W.va., Inc. ($8.65M), 5. Acadian Ambulance Service Inc. ($8.57M), 6. Reliance Medical Transport, LLC ($8.35M), 7. Medex Medical Transport Service Inc. ($4.7M), 8. Lifeline Medical Services, Inc. ($4.68M), 9. Mercy Air Service Inc ($4.51M), 10. Rocky Mountain Holdings L.L.C ($4.46M).

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