NAICS + PSC page
NAICS 221310 and PSC B510 contractors
Water Supply and Irrigation Systems. SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.
NAICS 221310 + PSC B510
Last updated: April 7, 2026
Visible recipients
1
Mapped obligations
$752,446
State overlap
0
Top recipients
