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NAICS 541921 · Professional, Scientific, and Technical Services

NAICS 541921

1,850 active contractors list NAICS 541921 in SAM.gov; 1,524 are small under its SBA size standard and 201 list it as their primary NAICS.

Learn more about NAICS size standards

Active contractors
1,850
Small under 541921SBA size standard for this code
1,524
Primary NAICSTheir main line of business
201
Hidden registrationsExcluded, expired or inactive
30

Work this industry

Size is NAICS-specific: a firm can be small under one code and other than small under another. Learn more about small business set-asides

Contractors listing NAICS 541921

Claimed profiles come first by membership level, then companies with 541921 as their primary NAICS, then federal obligations over the last 36 months. SPRS shows the highest blind bracket met, never the score. Learn more about blind SPRS brackets

30 registrations hidden because they are excluded, expired or inactive in SAM.gov. Include them

Showing 221–240 of 1,850 contractors

Codes these contractors list most often alongside 541921: natural teaming adjacencies.