Department of the Interior NAICS 541620 and PSC B509 contractors

Environmental Consulting Services. SPECIAL STUDIES/ANALYSIS- ENDANGERED SPECIES: PLANT/ANIMAL. Cross-code overlap under Department of the Interior.

Department of the Interior · NAICS 541620 · PSC B509

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$30,515,644

State overlap

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541620 and PSC B509

Osage Nation

Pawhuska, OK

Pawhuska, OK | 211 awards | Top agency Department of Health and Human Services | NAICS 562910

Osage Nation Energy Services LLC

Tulsa, OK

Tulsa, OK | 17 awards | Top agency Department of Defense | NAICS 562910