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Home/Washington/NAICS 561990/PSC R425

State + NAICS + PSC page

NAICS 561990 and PSC R425 contractors in Washington

All Other Support Services. SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Cross-code overlap in Washington.

Washington · NAICS 561990 · PSC R425

Last updated: April 13, 2026

Visible recipients

1

Mapped obligations

$24,636,862

Buyer overlap

3

Top recipients

Visible recipients in the Washington overlap of NAICS 561990 and PSC R425

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 561990 -- drop PSC filter
Washington PSC R425 -- drop NAICS filter
Department of Defense -- buyer path
Department of Energy -- buyer path
Department of Commerce -- buyer path