> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/naics/621910/ # NAICS code 621910: Ambulance Services The companies classified under NAICS 621910, where they are based, how big they are and how the code maps to SIC. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** NAICS 621910 is the code for Ambulance Services, in sector 62: Health Care and Social Assistance. The companies counted under it are mostly small: 78% have 200 or fewer employees, and 91% are headquartered in the United States. ## What is NAICS 621910? NAICS 621910 is the code for Ambulance Services. It belongs to sector 62: Health Care and Social Assistance. NAICS, the North American Industry Classification System, is the standard U.S. government agencies use to sort businesses by what they mainly do, and each digit narrows the category. Most of the companies counted also carry SIC 4119, Local passenger transportation, in the older SIC system (88%). - 45% of the companies counted have 50 or fewer employees, and the middle one is in the 51 to 200 range. - The largest group is headquartered in the United States (91%). Within the US, New York is the biggest state (13%). - Most were founded in the 2010s (18%), then the 1970s (16%). **Figure: How NAICS 621910 is built.** The code 621910 split into its parts: sector 62, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 621910. Each digit narrows the category.* ## Which companies are classified under NAICS 621910? The biggest by headcount range include Vidant Health, Global Medical Response, Docgo, Air Methods and Acadian Ambulance. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | Vidant Health | Greenville, NC | 10,001+ | | Global Medical Response | Lewisville, TX | 10,001+ | | Air Methods | Greenwood Village, CO | 1,001 to 5,000 | | Acadian Ambulance | Lafayette, LA | 1,001 to 5,000 | | Priority Ambulance | Knoxville, TN | 1,001 to 5,000 | | Med-Trans | Lewisville, TX | 501 to 1,000 | | Reach Air Medical Services | Sacramento, CA | 501 to 1,000 | | Life Flight Network | Aurora, OR | 501 to 1,000 | | Royal Ambulance | San Leandro, CA | 501 to 1,000 | | Seniorcare Emergency Medical Services | Bronx, NY | 501 to 1,000 | | Careflite | Grand Prairie, TX | 501 to 1,000 | | Medic Ambulance Service | Vallejo, CA | 501 to 1,000 | | Pafford Emergency Medical Services | Ruston, LA | 501 to 1,000 | | Medstar | Clinton Township, MI | 501 to 1,000 | | Hunters Ambulance | Meriden, CT | 501 to 1,000 | | First Call Ambulance | Nashville, TN | 501 to 1,000 | | Classic Air Medical | Woods Cross, UT | 201 to 500 | | Apollo Medflight | Amarillo, TX | 201 to 500 | | Lifeline Ambulance Service | Woburn, MA | 201 to 500 | | Prn Ambulance | North Hills, CA | 201 to 500 | | American Ambulance Service | Norwich, CT | 201 to 500 | | Thorne Ambulance Service | Greenville, SC | 201 to 500 | | Mobile Life Support Services | New Windsor, NY | 201 to 500 | | Mutual Aid Ambulance Service | Greensburg, PA | 201 to 500 | | Pulse Medical Transportation | Wayne, NJ | 201 to 500 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## Where are NAICS 621910 companies based? Within the United States, New York (13%), Pennsylvania (11%) and California (11%) lead. **Figure: US headquarters of companies in NAICS 621910, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 621910 headquartered in each state. The largest are New York 13%, Pennsylvania 11%, California 11%. *Share of counted US companies in NAICS 621910 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 621910? 45% of them have 50 or fewer employees, and the middle one is in the 51 to 200 range. Companies with fewer than 11 employees are not counted. **Figure: Size of companies in NAICS 621910.** Seven columns for the share of counted companies in NAICS 621910 in each employee range: 11 to 50 45%, 51 to 200 33%, 201 to 500 10%, 501 to 1,000 7%, 1,001 to 5,000 3%, 5,001 to 10,000 1%, 10,001+ 1%. *Share of counted companies in NAICS 621910 in each employee range.* ## How old are NAICS 621910 companies? Most were founded in the 2010s (18%), then the 1970s (16%). **Figure: When companies in NAICS 621910 were founded.** Eight columns for the share of counted companies in NAICS 621910 founded in each era: Before 1960 13%, 1960s 8%, 1970s 16%, 1980s 14%, 1990s 12%, 2000s 16%, 2010s 18%, 2020s 2%. *Share of counted companies in NAICS 621910 by the era they were founded in, for the ones that list a founding year.* ## How NAICS 621910 compares - 45% of companies in NAICS 621910 have 50 or fewer employees, against 60% across all NAICS codes on this site. - 20% were founded in 2010 or later, against 30% across all NAICS codes on this site. - Pennsylvania holds 11% of the US companies here, against 4% across all NAICS codes on this site. ## How do NAICS 621910 companies describe themselves? A code is assigned by classification, and a company does not choose its own, so the label a company uses for itself can differ. The most common labels here are Hospitals and Health Care (57%), Truck Transportation (12%) and Public Safety (11%). **Figure: How companies in NAICS 621910 describe themselves.** Bars for the share of counted companies in NAICS 621910 that give each industry on their public profile: Hospitals and Health Care 57%, Truck Transportation 12%, Public Safety 11%, Ambulance Services 5%, Medical Practices 5%, Transportation/Trucking/Railroad 5%. *Share of counted companies in NAICS 621910 by the industry they list on their public profile.* ## NAICS 621910 and the SIC system NAICS replaced SIC in 1997, but the two do not line up one to one: companies filed under one NAICS code can carry several SIC codes. These are the ones seen most. | Code | Title | Share of counted | | --- | --- | --- | | SIC 4119 | Local passenger transportation | 88% | | [SIC 8099](https://enrich.chat/naics/621999/) | Health and allied services | 7% | | SIC 4522 | Nonscheduled air transportation | 5% | ## Where NAICS codes come from NAICS is maintained by the U.S. Census Bureau with Canada and Mexico and revised every five years; the current edition is NAICS 2022. To check exactly what a code includes, search the [official NAICS index](https://www.census.gov/naics/) or read the Census Bureau's [guide to understanding NAICS](https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html). Pick a code by what a company mostly does, not by who it sells to. ## How do you reach the people at NAICS 621910 companies? The people to talk to are usually operations, IT and finance leaders. You can build the list from this code in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the companies with NAICS code 621910 (Ambulance Services) ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the operations, IT and finance leaders at companies with NAICS code 621910, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Codes next to it: [NAICS 621991: Blood and Organ Banks](https://enrich.chat/naics/621991/)[NAICS 621999: All Other Miscellaneous Ambulatory Health](https://enrich.chat/naics/621999/) Others in sector 62: [NAICS 621111: Offices of Physicians](https://enrich.chat/naics/621111/)[NAICS 621210: Offices of Dentists](https://enrich.chat/naics/621210/)[NAICS 621610: Home Health Care Services](https://enrich.chat/naics/621610/)[NAICS 621498: All Other Outpatient Care Centers](https://enrich.chat/naics/621498/)[NAICS 622110: General Medical and Surgical Hospitals](https://enrich.chat/naics/622110/)[NAICS 621340: Offices of Physical, Occupational and Speech](https://enrich.chat/naics/621340/)[NAICS 623990: Other Residential Care Facilities](https://enrich.chat/naics/623990/)[NAICS 621310: Offices of Chiropractors](https://enrich.chat/naics/621310/) ## Frequently asked questions ### What is NAICS code 621910? NAICS 621910 is the code for Ambulance Services, in sector 62: Health Care and Social Assistance. ### What is the SIC code for NAICS 621910 (Ambulance Services)? 88% of the companies counted carry SIC 4119 (Local passenger transportation), but the two systems do not map one to one. ### Which companies are classified under NAICS 621910? The biggest by headcount range include Vidant Health, Global Medical Response, Docgo, Air Methods and Acadian Ambulance. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 621910 companies based? The largest groups are headquartered in the United States (91%) and France (4%). ### How big are the companies in NAICS 621910? 45% have 50 or fewer employees, and the middle one is in the 51 to 200 range. Companies with fewer than 11 employees are not counted. ### Is NAICS 621910 the same as a SIC code? No. NAICS replaced SIC as the U.S. federal standard in 1997, and the two do not map one to one. The SIC code seen most among these companies is 4119. ## Try this prompt Find the people at NAICS 621910 companies ```text Use www.enrich.chat to find the operations, IT and finance leaders at companies with NAICS code 621910, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 621991](https://enrich.chat/naics/621991/) - [NAICS 621999](https://enrich.chat/naics/621999/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)