All Other Miscellaneous Ambulatory Health Care Services — NAICS 621999
Browse federal contract opportunities classified under NAICS code 621999 (All Other Miscellaneous Ambulatory Health Care Services). Find active solicitations on SAM.gov, understand size standards, and discover set-aside opportunities for your business.
About NAICS 621999
All Other Miscellaneous Ambulatory Health Care Services. This industry falls under the Health Care and Social Assistance sector (NAICS codes beginning with 62).
Federal agencies use NAICS code 621999 when posting contract opportunities on SAM.gov to classify the type of work being solicited. Businesses that operate in the all other miscellaneous ambulatory health care services space should include this code in their SAM.gov registration and capability statements to ensure they appear in relevant searches.
How to Use NAICS 621999 in Federal Contracting
To compete for federal contracts under NAICS 621999, your business should be registered in SAM.gov with this NAICS code listed in your entity profile. When agencies post solicitations for all other miscellaneous ambulatory health care services work, they reference this code to determine the applicable small business size standard and any set-aside eligibility.
If you hold certifications such as 8(a), HUBZone, SDVOSB, or WOSB, you may be eligible for set-aside contracts under this NAICS code. These set-asides limit competition to certified small businesses, giving you a significant advantage in winning federal work.
FedOverwatch monitors SAM.gov daily and can automatically match you with new opportunities under NAICS 621999. Set up your profile with your NAICS codes and certifications to receive personalized contract alerts.
NAICS 621999 Market Intelligence
Based on 3 years of federal award data from USAspending.gov, the all other miscellaneous ambulatory health care services market has seen 2,354 contract awards totaling $1.7B in value. The median contract size is $100K, with approximately 65 new awards per month.
Total Awards (3yr)
2,354
Total Value
$1.7B
Median Contract
$100K
Competitors
352
Contract value distribution
1,778 small business awards ($744.9M total value,$99K median)
352 companies compete for NAICS 621999 contracts
See who's winning, their award values, and where you fit in the market
Explore CompetitorsSize Standards
The SBA establishes size standards for each NAICS code to define what qualifies as a "small business" for federal contracting purposes. For NAICS 621999 (All Other Miscellaneous Ambulatory Health Care Services), the size standard is based on either average annual receipts or number of employees, depending on the specific industry. Meeting the size standard for your primary NAICS code is required to qualify for small business set-aside contracts.
Visit the SBA Size Standards Table to find the current threshold for NAICS 621999.
Recent NAICS 621999 Opportunities
View all →The Department of Defense is contracting for Integrated Referral Management and Appointing Center (IRMAC) services to support the Defense Health Agency. The contract will provide centralized Patient Appointing Services, Referral Management Services, and Clear and Legible Report accountability Services for military treatment facilities in Hawaii and the Pacific Northwest. This is an 8(a) set-aside opportunity with a performance period extending until June 2031.
The Department of Homeland Security is soliciting proposals for Enterprise Health Unit Services at four Federal Law Enforcement Training Centers located in Glynco, Georgia; Artesia, New Mexico; Charleston, South Carolina; and Cheltenham, Maryland. This competitive procurement is set aside for Woman-Owned Small Businesses and anticipates a single fixed-price contract with task orders for each site. Offerors must submit their proposals by June 4, 2026, and are encouraged to address all evaluation criteria outlined in the solicitation.
The Federal Law Enforcement Training Center is procuring enterprise health unit services to provide comprehensive medical support, including emergency response, preventive care, and occupational health services, for federal law enforcement trainees and personnel at its Glynco, Georgia campus.
The Department of Veterans Affairs is procuring mobile lithotripsy services to provide extracorporeal shock wave lithotripsy (ESWL) for kidney stone treatment at VA medical facilities across the country, requiring a contractor to deliver fully equipped mobile units with certified medical personnel, scheduled on-demand, and compliant with all VA clinical and safety standards.
The Federal Law Enforcement Training Center is procuring enterprise health unit services to provide comprehensive medical support, including emergency response, preventive care, and occupational health services, for federal law enforcement trainees and personnel at its Glynco, Georgia campus.
The Department of Veterans Affairs is procuring home sleep apnea testing services. This opportunity is set aside for Service-Disabled Veteran-Owned Small Businesses, indicating a focus on supporting veteran-owned enterprises in providing these essential health services.
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Set up your profile with your NAICS codes and certifications, and FedOverwatch will automatically match you with relevant all other miscellaneous ambulatory health care services opportunities as they're posted on SAM.gov.