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NAICS 541620 · Professional, Scientific, and Technical Services

Environmental Consulting Services

15,750 active contractors list NAICS 541620 (Environmental Consulting Services) in SAM.gov; 9,824 are small under its SBA size standard and 3,356 list it as their primary NAICS.

Learn more about NAICS size standards

Active contractors
15,750
Small under 541620SBA size standard for this code
9,824
Primary NAICSTheir main line of business
3,356
Hidden registrationsExcluded, expired or inactive
126

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 541620

Claimed profiles come first by membership level, then companies with 541620 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

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

Showing 1–20 of 15,750 contractors

Codes these contractors list most often alongside 541620: natural teaming adjacencies.