Department of the Interior NAICS 236220 contractors

Commercial and Institutional Building Construction. Contractors in this NAICS lane under Department of the Interior.

Agency: Department of the Interior

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$23,131,399,845

Visible recipients tied to Department of the Interior and NAICS 236220

Akima Construction Services LLC

Herndon, VA

Herndon, VA | 5 awards | Top agency Department of Defense | NAICS 236220

$110,968,596

Wsp USA Environment & Infrastructure Inc.

Blue Bell, PA

Blue Bell, PA | 309 awards | Top agency Department of Defense | NAICS 236220

$714,940,084

Marcon Engineering, INC

Escondido, CA

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

$28,789,758

Sealaska Environmental Services, LLC

Juneau, AK

Juneau, AK | 20 awards | Top agency Department of Defense | NAICS 562910

$6,859,948

Relyant Global LLC

Maryville, TN

Maryville, TN | 66 awards | Top agency Department of Defense | NAICS 236220

$288,795,753

Kiewit Infrastructure South CO

Westlake, TX

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

$1,951,672

Aleut Construction LLC

Reston, VA

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

$321,712,366

Tunista Construction LLC

Tacoma, WA

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

$68,074,350

Cdm Constructors Inc.

Boston, MA

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

$298,387,094

Pojoaque Pueblo Service Corporation

Gallup, NM

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

$11,505,430

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