Department of Defense NAICS 541620 and PSC F999 contractors

Environmental Consulting Services. OTHER ENVIRONMENTAL SERVICES. Cross-code overlap under Department of Defense.

Department of Defense · NAICS 541620 · PSC F999

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$2,993,180,162

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541620 and PSC F999

Cherokee Nation Technology Solutions LLC

Tulsa, OK

Tulsa, OK | 20 awards | Top agency Department of Defense | NAICS 541620

$166,231,153

Tetra Tech Ec, Inc.

San Diego, CA

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

$240,259,452

Chenega Global Services LLC

San Antonio, TX

San Antonio, TX | 5 awards | Top agency Department of Defense | NAICS 562910

$95,855,014

Ahtna Facility Services, Incorporated

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Energy | NAICS 562910

$103,130,723

Ea Engineering, Science, And Technology, Inc., Pbc

Hunt Valley, MD

Hunt Valley, MD | 522 awards | Top agency Department of Defense | NAICS 562910

$610,270,124

Nv5 Geospatial, Inc.

Saint Petersburg, FL

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

$31,932,008

Wsp USA Environment & Infrastructure Inc.

Blue Bell, PA

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

$405,422,462

Navarro Research And Engineering, Inc.

Oak Ridge, TN

Oak Ridge, TN | 102 awards | Top agency Department of Energy | NAICS 562910

$323,341,989

Hdr Environmental, Operations And Construction, Inc.

Englewood, CO

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

$178,707,269

Ce2 Kleinfelder Jv

Pleasanton, CA

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

$20,660,503

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