Department of the Interior NAICS 541330 contractors

Engineering Services. Contractors in this NAICS lane under Department of the Interior.

Agency: Department of the Interior

Last updated: April 19, 2026

Visible recipients

114

Mapped obligations

$39,781,929,483

Visible recipients tied to Department of the Interior and NAICS 541330

Cubic Defense Applications, Inc.

San Diego, CA

San Diego, CA | 153 awards | Top agency Department of Defense | NAICS 334220

$101,198,708

The Mil Corporation

Bowie, MD

Bowie, MD | 189 awards | Top agency Department of Defense | NAICS 541519

$655,033,394

Hdr Environmental, Operations And Construction, Inc.

Englewood, CO

Englewood, CO | 109 awards | Top agency Department of Defense | NAICS 541330

$447,381,366

Abacus Technology Corporation

Chevy Chase, MD

Chevy Chase, MD | 113 awards | Top agency Department of Defense | NAICS 517110

$51,730,543

Woolpert, Inc.

Beavercreek, OH

Beavercreek, OH | 89 awards | Top agency Department of Defense | NAICS 541360

$74,991,255

Yakama Nation

Toppenish, WA

Toppenish, WA | 20 awards | Top agency Department of the Interior | NAICS 541990

$800,901

Accelgov LLC

Bethesda, MD

Bethesda, MD | 89 awards | Top agency Department of Justice | NAICS 541614

$29,744,583

Chenega It Enterprise Services, LLC

Lorton, VA

Lorton, VA | 56 awards | Top agency Department of Defense | NAICS 541330

$93,773,626

Electrosoft Services, LLC

Reston, VA

Reston, VA | 108 awards | Top agency Department of Defense | NAICS 541519

$3,777,751

Cherokee Nation Government Solutions LLC

Tulsa, OK

Tulsa, OK | 56 awards | Top agency Department of Defense | NAICS 541330

$34,533,868

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