Department of Defense NAICS 541620 contractors

Environmental Consulting Services. Contractors in this NAICS lane under Department of Defense.

Agency: Department of Defense

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$3,729,878,400

Visible recipients tied to Department of Defense and NAICS 541620

Bristol General Contractors, LLC

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 236220

Halff Associates, Inc.

Richardson, TX

Richardson, TX | 5 awards | Top agency Department of Defense | NAICS 541330

Integral Consulting Inc.

Boulder, CO

Boulder, CO | 9 awards | Top agency Department of Energy | NAICS 541620

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