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

Southland Industries

Sterling, VA

Sterling, VA | 15 awards | Top agency Department of Defense | NAICS 541330

$48,730,978

Btas INC

Beavercreek, OH

Beavercreek, OH | 50 awards | Top agency Department of Defense | NAICS 541712

$77,079,917

Brown And Caldwell

San Diego, CA

San Diego, CA | 5 awards | Top agency Department of Defense | NAICS 541330

$3,941,395

Abm Industries INC

New York, NY

New York, NY | 8 awards | Top agency General Services Administration | NAICS 561210

$7,565,617

Pueblo Of Zia

San Ysidro, NM

San Ysidro, NM | 54 awards | Top agency Department of Commerce | NAICS 237110

$48,191

Crow Tribe

Crow Agency, MT

Crow Agency, MT | 20 awards | Top agency Department of the Interior | NAICS 237110

$263,872

Mescalero Apache Tribe

Mescalero, NM

Mescalero, NM | 31 awards | Top agency Department of the Interior | NAICS 115310

$170,918

Bering Straits Aerospace Services, LLC

Anchorage, AK

Anchorage, AK | 16 awards | Top agency Department of Defense | NAICS 541330

$21,126,740

Ulteig Engineers INC

Fargo, ND

Fargo, ND | 5 awards | Top agency Department of Agriculture | NAICS 541370

$1,180,203

Ares Corporation

Mclean, VA

Mclean, VA | 16 awards | Top agency National Aeronautics and Space Administration | NAICS 541712

$65,731,983

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