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Department of Transportation NAICS 541330 and PSC C220 contractors in Washington
Engineering Services. ARCHITECT AND ENGINEERING- GENERAL: STRUCTURAL ENGINEERING. Use this deepest state-buyer cross-code page to see which visible contractors sit in the exact overlap of buyer, geography, industry, and product-service lane.
Washington · Department of Transportation
Last updated: April 7, 2026
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1
Mapped obligations
$395,524,539
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