Department of Defense NAICS 541330 contractors

Engineering Services. Contractors in this NAICS lane under Department of Defense.

Agency: Department of Defense

Last updated: April 19, 2026

Visible recipients

391

Mapped obligations

$384,687,047,787

Visible recipients tied to Department of Defense and NAICS 541330

Advanced It Concepts, LLC

Orlando, FL

Orlando, FL | 18 awards | Top agency Department of Defense | NAICS 541519

$4,655,637

Goldbelt Nighthawk, LLC

Newport News, VA

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

$9,195,383

Forward Slope INC

San Diego, CA

San Diego, CA | 56 awards | Top agency Department of Defense | NAICS 541330

$307,368,765

Huitt-zollars, Inc.

Fort Worth, TX

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

$18,105,012

Merrick-rs & H Joint Venture LLP

Greenwood Village, CO

Greenwood Village, CO | 20 awards | Top agency Department of Defense | NAICS 541330

$86,268,890

Hdr Architecture, Inc.

Arlington, VA

Arlington, VA | 51 awards | Top agency Department of Defense | NAICS 541330

$584,144,627

Astronics Test Systems INC

Orlando, FL

Orlando, FL | 50 awards | Top agency Department of Defense | NAICS 334515

$48,914,983

Wsp USA INC

Federal Way, WA

Federal Way, WA | 28 awards | Top agency Department of Defense | NAICS 541330

$372,508,133

Ironmountain Solutions, LLC

Huntsville, AL

Huntsville, AL | 72 awards | Top agency Department of Defense | NAICS 541330

$377,298,328

Kimley-horn And Associates INC

Raleigh, NC

Raleigh, NC | 24 awards | Top agency Department of Transportation | NAICS 541330

$44,285,163

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