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NAICS 238220 and PSC R499 contractors in Washington

Plumbing, Heating, and Air-Conditioning Contractors. SUPPORT- PROFESSIONAL: OTHER. Use this deeper state cross-code page to see which visible contractors sit in the overlap between these two lanes inside Washington.

Washington · NAICS 238220 · PSC R499
Last updated: April 3, 2026

Visible recipients

1

Mapped obligations

$4,055,716

Buyer overlap

3

Top recipients

Visible recipients in the Washington overlap of NAICS 238220 and PSC R499