Department of Transportation NAICS 237990 and PSC R499 contractors

Other Heavy and Civil Engineering Construction. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Transportation.

Department of Transportation · NAICS 237990 · PSC R499

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$170,443,515

State overlap

Top recipients

Visible recipients in the Department of Transportation overlap of NAICS 237990 and PSC R499

Cdm Smith Inc.

Carlsbad, CA

Carlsbad, CA | 5 awards | Top agency Department of Defense | NAICS 237990

Ahtna Government Services CORP

West Sacramento, CA

West Sacramento, CA | 5 awards | Top agency Department of Energy | NAICS 237990

Hntb Corporation

Kansas City, MO

Kansas City, MO | 24 awards | Top agency Department of Defense | NAICS 541330

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