Department of Defense NAICS 541990 and PSC B509 contractors

All Other Professional, Scientific, and Technical Services. SPECIAL STUDIES/ANALYSIS- ENDANGERED SPECIES: PLANT/ANIMAL. Cross-code overlap under Department of Defense.

Department of Defense · NAICS 541990 · PSC B509

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$83,270,931

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC B509

Everfox LLC

Herndon, VA

Herndon, VA | 89 awards | Top agency Department of Defense | NAICS 611420

$77,661,355

Osage Nation Energy Services LLC

Tulsa, OK

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

$5,609,576

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