Department of the Interior NAICS 237990 and PSC F999 contractors

Other Heavy and Civil Engineering Construction. OTHER ENVIRONMENTAL SERVICES. Cross-code overlap under Department of the Interior.

Department of the Interior · NAICS 237990 · PSC F999

Last updated: April 13, 2026

Visible recipients

Mapped obligations

$2,104,434,146

State overlap

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 237990 and PSC F999

Tetra Tech Ec, Inc.

San Diego, CA

San Diego, CA | 5 awards | Top agency Department of Defense | NAICS 562910

Ahtna Global LLC

Anchorage, AK

Anchorage, AK | 92 awards | Top agency Department of Defense | NAICS 562910

Shaw Environmental & Infrastructure, Inc.

Moorestown, NJ

Moorestown, NJ | 5 awards | Top agency Department of Defense | NAICS 237990

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