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NAICS 621511: Medical Laboratories

Medical Laboratories is NAICS code 621511. A business is small under it with $41.5 million or less in average annual receipts. 9 federal contracts are open on SAM.gov under this code right now.

SBA size standard
$41.5 million or less in average annual receipts
Open contracts now
9
Small businesses registered
1,343
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Open federal contracts for medical laboratories

See all 9 open contracts under NAICS 621511 →

What NAICS 621511 covers

The Census Bureau's NAICS index lists these kinds of work under 621511:

  • Bacteriological laboratories, diagnostic
  • Biological laboratories, diagnostic
  • Blood analysis laboratories
  • Cytology health laboratories
  • DNA testing laboratories
  • Forensic laboratories, medical
  • Genetic testing laboratories
  • Laboratories, medical (except radiological, X-ray)
  • Laboratory testing services, medical (except radiological, X-ray)
  • Medical laboratories (except radiological, X-ray)
  • Medical pathology laboratories
  • Mycology health laboratories
  • Parasitology health laboratories
  • Pathological analysis laboratories

The index lists 19 entries for this code in all.

Read the full definition, including what's excluded, on census.gov.

SBA size standard for 621511

To count as a small business for a contract assigned NAICS 621511, your business must have $41.5 million or less in average annual receipts. Receipts are averaged over your last five completed fiscal years.

From SBA's table of size standards, effective Mar 17, 2023. Confirm it with SBA's size standards tool before you certify your size.

Who buys medical laboratories

Open notices right now come from Department of Veterans Affairs (8) and Dept of Defense (1).

Set-asides on open 621511 contracts

  • No set-aside (full and open): 9

Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.

Your competition

1,343 businesses with active SAM.gov registrations are rated small under NAICS 621511, most of them in Texas (174), Florida (119), Georgia (114), California (103) and Virginia (89). Look any of them up with the free CAGE code and UEI lookup.

Related NAICS codes

Frequently asked questions

What is NAICS code 621511?

621511 is the 2022 NAICS code for Medical Laboratories. The Census Bureau's index lists work such as bacteriological laboratories, diagnostic, biological laboratories, diagnostic, blood analysis laboratories under it. Federal contracting uses the 2022 codes.

What is the SBA size standard for NAICS 621511?

$41.5 million or less in average annual receipts. A business at or under that is small for contracts assigned this code. The current SBA table took effect Mar 17, 2023.

Are there government contracts for medical laboratories?

Yes. 9 federal contract opportunities under NAICS 621511 are open on SAM.gov right now.

How do I add NAICS code 621511 to my SAM.gov registration?

Update your entity registration on SAM.gov and add the code on the Goods and Services page, in the Assertions section. You can list several NAICS codes and mark one as your primary. Changes are free.

Keep going

FedReady is an independent company, not affiliated with SBA, SAM.gov, the Census Bureau or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov.