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

Michael Baker International, Inc.

Moon Township, PA

Moon Township, PA | 58 awards | Top agency Department of Defense | NAICS 541330

$575,475,826

Caci Enterprise Solutions, LLC

Chantilly, VA

Chantilly, VA | 11 awards | Top agency Department of Defense | NAICS 541512

$26,595,066

Michael Baker International Holdco Corporation

Moon Township, PA

Moon Township, PA | 5 awards | Top agency Department of Defense | NAICS 541330

$22,721,804

Stantec Consulting Services Inc.

Denver, CO

Denver, CO | 138 awards | Top agency Department of Defense | NAICS 541330

$630,151,561

Walker River Paiute Tribe

Schurz, NV

Schurz, NV | 83 awards | Top agency Department of Housing and Urban Development | NAICS 541330

$149,924

Honeywell Building Solutions Ses CORP

Minneapolis, MN

Minneapolis, MN | 6 awards | Top agency General Services Administration | NAICS 541330

$212,453,061

Power Engineers INC

Hailey, ID

Hailey, ID | 19 awards | Top agency Department of Defense | NAICS 541330

$109,203,388

Metron Incorporated

Reston, VA

Reston, VA | 48 awards | Top agency Department of Defense | NAICS 541712

$89,244,041

Goldbelt Nighthawk, LLC

Newport News, VA

Newport News, VA | 28 awards | Top agency Department of Defense | NAICS 541519

$9,195,383

Prairie Band Potawatomi Nation

Mayetta, KS

Mayetta, KS | 103 awards | Top agency Department of Health and Human Services | NAICS 541990

$178,989

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