By Outrider Editorial Team · Updated August 20, 2026
Official definition
This industry comprises establishments primarily engaged in providing transportation of patients by ground or air, along with medical care. These services are often provided during a medical emergency but are not restricted to emergencies. The vehicles are equipped with lifesaving equipment operated by medically trained personnel.
FY2025 obligations
$429.2M
Contract actions
1,738
IDVs
193
Top buying agencies
- Department of Veterans Affairs$244.6M
- Department of Homeland Security$87.1M
- Department of Agriculture$43.5M
- Department of Defense$36.1M
- Department of Justice$10.3M
FY2025 federal contract obligations, USAspending.gov
NAICS 621910 obligated $429 million in FY2025 across 1,738 contract actions. VA leads at $245 million, covering patient transport between facilities and to community care. DHS follows at $87 million, then USDA at $44 million, which is wildland fire medical standby and evacuation support, then DoD at $36 million and DOJ at $10 million. That USDA line is one of the few places in federal contracting where the Forest Service mission produces a distinct healthcare requirement.
What belongs here
Transportation of patients by ground or air with medical care, in vehicles equipped with lifesaving equipment and staffed by medically trained personnel. The definition explicitly covers non-emergency transport as well as emergencies.
- Non-transport ambulatory health services are 621999.
- Diagnostic laboratory services are 621511.
- Emergency medical technician instruction is a training code, not this one.
Competing in this code
193 IDVs against 1,738 actions at an average near $247,000 means recurring service agreements at specific facilities. This is the most geographically determined code in the health services family: an agency buys transport where its patients are, and a local operator with existing licensure, staffed units, and hospital relationships in that service area competes against very few others. The $22.5 million size standard keeps regional operators inside the small business lane. Wildland fire standby is the specialist niche, requiring crews and units that can deploy to an incident and operate off-grid for extended periods.
Frequently Asked
NAICS 621910 questions, answered.
What is the SBA size standard for NAICS 621910?
SBA sets it at $22.5 million in average annual receipts, averaged over your last five completed fiscal years. Come in at or under that and you are small on every NAICS 621910 solicitation, including the set-asides.
Which agencies buy ambulance services under NAICS 621910?
FY2025 obligations: VA ($245 million), DHS ($87 million), USDA ($44 million), DoD ($36 million), DOJ ($10 million). USDA's $44 million for wildland fire medical support is the most unusual entry, and it is a genuinely specialized capability, not routine transport.
Can a local ambulance operator win federal contracts under NAICS 621910?
Yes, and geography works in your favor. Agencies buy transport where their patients are, and evaluation weights licensure in the service area, staffed unit availability, and hospital relationships. With 1,738 actions averaging near $247,000 and a $22.5 million size standard, regional operators compete against very few others for any given facility.
What is wildland fire medical standby?
Medical units and crews staged at fire incidents to treat and evacuate firefighters, which USDA bought at $44 million in FY2025. It requires personnel and vehicles that can deploy to a remote incident and operate independently for extended periods, which is a materially different capability from municipal or interfacility transport.
Register Under NAICS 621910
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