Department of Defense NAICS 237110 contractors

Water and Sewer Line and Related Structures Construction. Contractors in this NAICS lane under Department of Defense.

Agency: Department of Defense

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$1,063,369,546

Visible recipients tied to Department of Defense and NAICS 237110

Watts Constructors LLC

Mc Lean, VA

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

$23,460,862

Kiewit Infrastructure West Co.

Vancouver, WA

Vancouver, WA | 58 awards | Top agency Department of Defense | NAICS 237990

$67,124,415

Clark Construction Group LLC

Bethesda, MD

Bethesda, MD | 109 awards | Top agency Department of Defense | NAICS 236220

$37,417,785

Rq Construction, LLC

Carlsbad, CA

Carlsbad, CA | 120 awards | Top agency Department of Defense | NAICS 236220

$98,709,995

Harper Construction Company, Inc.

San Diego, CA

San Diego, CA | 51 awards | Top agency Department of Defense | NAICS 236220

$23,222,090

Bering Straits Global Innovations, LLC

Anchorage, AK

Anchorage, AK | 65 awards | Top agency Department of Defense | NAICS 562998

$7,744,833

The Haskell Company

Jacksonville, FL

Jacksonville, FL | 29 awards | Top agency Department of Defense | NAICS 236220

$13,731,602

Manson Construction CO

Seattle, WA

Seattle, WA | 86 awards | Top agency Department of Defense | NAICS 237990

$16,044,000

Tatitlek Construction Services INC

Oklahoma City, OK

Oklahoma City, OK | 20 awards | Top agency Department of Defense | NAICS 236220

$4,775,234

Sealaska Environmental Services, LLC

Juneau, AK

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

$1,273,822

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