Department of the Interior NAICS 541620 and PSC C219 contractors

Environmental Consulting Services. ARCHITECT AND ENGINEERING- GENERAL: OTHER. Cross-code overlap under Department of the Interior.

Department of the Interior · NAICS 541620 · PSC C219

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$2,238,479,421

State overlap

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541620 and PSC C219

Tetra Tech Ec, Inc.

San Diego, CA

San Diego, CA | 5 awards | Top agency Department of Defense | NAICS 562910

$81,314,806

Nv5 Geospatial, Inc.

Saint Petersburg, FL

Saint Petersburg, FL | 132 awards | Top agency Department of the Interior | NAICS 541360

$457,763,015

Jacobs Government Services Company

Arlington, VA

Arlington, VA | 238 awards | Top agency Department of Defense | NAICS 541330

$292,603,720

Wsp USA Environment & Infrastructure Inc.

Blue Bell, PA

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

$300,552,525

Hdr Environmental, Operations And Construction, Inc.

Englewood, CO

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

$238,441,334

Wsp USA Solutions INC

Arlington, VA

Arlington, VA | 228 awards | Top agency Department of Defense | NAICS 541330

$231,299,775

Kleinfelder INC

Rancho Cordova, CA

Rancho Cordova, CA | 5 awards | Top agency Department of Defense | NAICS 541330

$12,809,124

Michael Baker International Holdco Corporation

Moon Township, PA

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

$20,234,686

Stantec Consulting Services Inc.

Denver, CO

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

$467,816,713

Power Engineers INC

Hailey, ID

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

$80,858,377

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