NAICS 621511
Medical Laboratories
Sector: Health Care and Social Assistance
SBA size standard
$41.5M
Top buying agencies
- Department of Veterans Affairs
- Department of Health and Human Services
- Department of Defense
Open opportunities in NAICS 621511
Updated August 24, 2026123active solicitations
Most active buyers
- Department of Veterans Affairs75
- Department of Defense26
- Department of Health and Human Services19
- Department of Commerce1
- Interior, Department of the1
Most common set-asides
- Unrestricted70
- No Set aside used33
- Total Small Business Set-Aside (FAR 19.5)13
- Service-Disabled Veteran-Owned Small Business Set Aside3
- Small Business Set Aside - Total2
Counts reflect active contract opportunities ingested from SAM.gov and refresh daily. Figures move as solicitations are posted, amended, and closed.
Description
Establishments primarily engaged in providing analytic or diagnostic laboratory services to the medical profession or the patient.
Common uses in federal contracting
- Clinical laboratory services
- Diagnostic testing support
- Reference laboratory services
How to use this NAICS
Add NAICS 621511 to your SAM.gov entity profile to be identified as a provider in this industry. If you are a small business under the $41.5M size standard, you qualify for small-business set-asides in this code.
See our guide to federal set-asides for a walk-through of which programs you can stack on top of this NAICS.