PSC B509 federal contractors, buyers, and awards

SPECIAL STUDIES/ANALYSIS- ENDANGERED SPECIES: PLANT/ANIMAL. Use this PSC page to review visible contractors, buyer overlap, and award concentration in this product or service lane.

Category code: B509

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$43,856,286

Buyer overlap

Top recipients

Recipients active in this PSC lane

Everfox LLC

Herndon, VA

Top buyer: Department of DefenseRecent award: 2026-06-30

$33,822,822

Osage Nation

Pawhuska, OK

Top buyer: Department of Health and Human ServicesRecent award: 2025-09-30

$5,016,732

Osage Nation Energy Services LLC

Tulsa, OK

Top buyer: Department of DefenseRecent award: 2025-09-30

$5,016,732

Browse by dimension

State, agency, and industry paths

States

Virginia

1 recipients · $72,572,047

Oklahoma

2 recipients · $62,779,631

Agencies

Department of Defense

Open the agency-scoped PSC view.

Department of Health and Human Services

Open the agency-scoped PSC view.

NAICS

NAICS 541990

3 recipients · $45,024,221

NAICS 334111

2 recipients · $34,538,002

NAICS 562910

2 recipients · $21,121,772

NAICS 541620

2 recipients · $20,482,180

NAICS 334517

2 recipients · $17,714,718

Explore rankings

Ranking paths for PSC B509

Top Recipients Top Awards Top States Top NAICS Virginia view Department of Defense view Virginia + NAICS 541990 Department of Defense + NAICS 541990 Department of Defense top NAICS Virginia top NAICS Virginia + Department of Defense top PSC Virginia + Department of Defense + NAICS 541990

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