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NAICS 237110 and PSC B503 contractors in Washington

Water and Sewer Line and Related Structures Construction. SPECIAL STUDIES/ANALYSIS- ARCHEOLOGICAL/PALEONTOLOGICAL. Cross-code overlap in Washington.

Washington · NAICS 237110 · PSC B503

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$6,767,522

Buyer overlap

Top recipients

Visible recipients in the Washington overlap of NAICS 237110 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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