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Home/Washington/Department of the Interior/NAICS 541620/PSC B503

State + agency + NAICS + PSC page

Department of the Interior NAICS 541620 and PSC B503 contractors in Washington

Environmental Consulting Services. SPECIAL STUDIES/ANALYSIS- ARCHEOLOGICAL/PALEONTOLOGICAL. Deepest cross-filter overlap.

Washington · Department of the Interior

Last updated: April 17, 2026

Visible recipients

2

Mapped obligations

$6,925,913

Cross-code depth

4 filters

Top recipients

Visible recipients tied to Department of the Interior, Washington, NAICS 541620, and PSC B503

Confederated Tribes Of Colville Reservation

Nespelem, WA

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

Spokane Tribe Of The Spokane Reservation

Wellpinit, WA

Wellpinit, WA | 103 awards | Top agency Department of the Interior | NAICS 541620

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Top recipient paths -- ranked view
Department of the Interior NAICS 541620 -- drop PSC filter
Department of the Interior PSC B503 -- drop NAICS filter