NAICS + PSC page

NAICS 541620 and PSC B502 contractors

Environmental Consulting Services. SPECIAL STUDIES/ANALYSIS- AIR QUALITY. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 541620 + PSC B502
Last updated: April 7, 2026

Visible recipients

1

Mapped obligations

$155,753

State overlap

0

Top recipients

Visible recipients in the NAICS 541620 and PSC B502 overlap