Department of the Interior NAICS 237990 contractors

Other Heavy and Civil Engineering Construction. Contractors in this NAICS lane under Department of the Interior.

Agency: Department of the Interior

Last updated: April 19, 2026

Visible recipients

Mapped obligations

$9,919,838,971

Visible recipients tied to Department of the Interior and NAICS 237990

Marcon Engineering, INC

Escondido, CA

Escondido, CA | 5 awards | Top agency Department of Defense | NAICS 236220

$12,538,516

Kiewit Infrastructure South CO

Westlake, TX

Westlake, TX | 25 awards | Top agency Department of Defense | NAICS 237310

$350,257,190

Aleut Construction LLC

Reston, VA

Reston, VA | 29 awards | Top agency Department of Defense | NAICS 236220

$4,342,220

Tunista Construction LLC

Tacoma, WA

Tacoma, WA | 5 awards | Top agency Department of Defense | NAICS 236220

$17,055,752

Cdm Constructors Inc.

Boston, MA

Boston, MA | 31 awards | Top agency Department of Defense | NAICS 237110

$102,839,751

Pojoaque Pueblo Service Corporation

Gallup, NM

Gallup, NM | 20 awards | Top agency Department of Defense | NAICS 237990

$23,990,704

Sealaska Constructors LLC

Seattle, WA

Seattle, WA | 46 awards | Top agency Department of the Interior | NAICS 236220

$24,422,196

Nez Perce Tribe

Lapwai, ID

Lapwai, ID | 187 awards | Top agency Department of Health and Human Services | NAICS 541990

$700,167

Ho-chunk Builders Company

Winnebago, NE

Winnebago, NE | 20 awards | Top agency Department of Defense | NAICS 236220

$10,137,423

Stg Pacific, LLC

Anchorage, AK

Anchorage, AK | 21 awards | Top agency Department of Defense | NAICS 236220

$4,756,995

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