NAICS + PSC page
NAICS 541990 and PSC H222 contractors
All Other Professional, Scientific, and Technical Services. EQUIPMENT AND MATERIALS TESTING- RAILWAY EQUIPMENT. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.
NAICS 541990 + PSC H222
Last updated: April 8, 2026
Visible recipients
1
Mapped obligations
$301,754,786
State overlap
0
Top recipients
