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Home/Washington/NAICS 541620/PSC R499

State + NAICS + PSC page

NAICS 541620 and PSC R499 contractors in Washington

Environmental Consulting Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap in Washington.

Washington · NAICS 541620 · PSC R499

Last updated: April 17, 2026

Visible recipients

2

Mapped obligations

$13,144,595

Buyer overlap

4

Top recipients

Visible recipients in the Washington overlap of NAICS 541620 and PSC R499

Confederated Tribes Of Colville Reservation

Nespelem, WA

Nespelem, WA | 230 awards | Top agency Department of the Interior | NAICS 921150

Sealaska Remediation Solutions, LLC

Seattle, WA

Seattle, WA | 20 awards | Top agency Department of Defense | NAICS 561990

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Top recipient paths -- ranked view
Washington NAICS 541620 -- drop PSC filter
Washington PSC R499 -- drop NAICS filter
Department of the Interior -- buyer path
Department of Health and Human Services -- buyer path
Department of the Treasury -- buyer path
Department of Commerce -- buyer path