What is NAICS code 621999?

NAICS 621999 is the industry "All Other Miscellaneous Ambulatory Health Care Services" in the North American Industry Classification System, part of the Health Care and Social Assistance sector (62).

What is the size standard for NAICS 621999?

The SBA sets a small business size standard for each NAICS code, either average annual receipts or number of employees. Check the current value for 621999 in the SBA table of size standards on sba.gov; it changes from time to time.

NAICS Code 621999: All Other Miscellaneous Ambulatory Health Care Services

NAICS code 621999 is the industry for all other miscellaneous ambulatory health care services in the Health Care and Social Assistance sector. Agencies tag every federal contract with a NAICS code, so this is the code to list in your SAM.gov registration and to search for bids.

Government contracts under NAICS 621999

Federal agencies obligated $1.2B on contracts under NAICS 621999 from FY2024 to FY2026, including $531M in FY2026. The biggest buyers were the Department of Homeland Security, the Department of Defense, the Department of Veterans Affairs. The largest contractors were STG International, Inc., Amergis Healthcare Staffing, Inc., The Arora Group, Inc..

See the full breakdown: government all other miscellaneous ambulatory health care services contracts, who wins and who buys.

Open government bids for NAICS 621999

The newest open notices from SAM.gov. Bidding needs a free SAM.gov registration.

Q525--LASER SERVICES - BUFFALO UROLOGY Holmium (30 and 80 Watt) Lasers CO2 Laser Lithotripsy (ESWL) Laser
Veterans Affairs, Department of · Sources Sought · NAICS 621999 · NY
Posted Oct 30, 2026 · Responses due Nov 20, 2026

See all 1 open bids under NAICS 621999

Small business size standard for NAICS 621999

To bid on small business set-aside contracts under NAICS 621999, your business must be small under the SBA size standard for this code, measured either by average annual receipts or by number of employees. The values are updated periodically, so check the current SBA table of size standards before you bid.

Other NAICS codes in 6219

How to choose the right NAICS code

Pick the 6-digit code that best describes what you sell. List it as your primary code in SAM.gov, and add other codes for related work. Agencies choose one NAICS code for each contract, so check the codes on past awards for the kind of work you do. Search all codes in the NAICS code lookup.

Related guides

Frequently asked questions

What is NAICS code 621999?: NAICS 621999 is the industry "All Other Miscellaneous Ambulatory Health Care Services" in the North American Industry Classification System, part of the Health Care and Social Assistance sector (62).
What is the size standard for NAICS 621999?: The SBA sets a small business size standard for each NAICS code, either average annual receipts or number of employees. Check the current value for 621999 in the SBA table of size standards on sba.gov; it changes from time to time.
Are there government contracts for NAICS 621999?: Yes. Federal agencies obligated $1.2B on contracts under NAICS 621999 from FY2024 to FY2026, and 1 notices are open right now.