Agency + NAICS + PSC page

Department of the Interior NAICS 541990 and PSC R431 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: HUMAN RESOURCES. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of the Interior.

Department of the Interior · NAICS 541990 · PSC R431
Last updated: April 8, 2026

Visible recipients

3

Mapped obligations

$836,797,694

State overlap

2

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541990 and PSC R431