Department of Defense NAICS 541990 contractors

All Other Professional, Scientific, and Technical Services. Contractors in this NAICS lane under Department of Defense.

Agency: Department of Defense

Last updated: April 19, 2026

Visible recipients

143

Mapped obligations

$21,850,205,145

Visible recipients tied to Department of Defense and NAICS 541990

Tatitlek Government Services, LLC

Anchorage, AK

Anchorage, AK | 49 awards | Top agency Department of State | NAICS 541512

$5,388,875

Power Engineers INC

Hailey, ID

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

$97,652

Jefferson Consulting Group LLC

Washington, DC

Washington, DC | 103 awards | Top agency Agency for International Development | NAICS 541611

$11,456,825

Parsons Government Services International Inc.

Pasadena, CA

Pasadena, CA | 46 awards | Top agency Department of Defense | NAICS 541990

$358,529,656

Golden Key Group, LLC

Reston, VA

Reston, VA | 126 awards | Top agency Department of Commerce | NAICS 541612

$9,586,065

Bowhead Mission Solutions, LLC

Springfield, VA

Springfield, VA | 47 awards | Top agency General Services Administration | NAICS 541330

$31,526,447

Goldbelt Nighthawk, LLC

Newport News, VA

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

$2,500

Censeo Consulting Group, Inc.

Washington, DC

Washington, DC | 117 awards | Top agency General Services Administration | NAICS 541611

$5,153,472

Osage Nation Energy Services LLC

Tulsa, OK

Tulsa, OK | 17 awards | Top agency Department of Defense | NAICS 562910

$592,844

Paragon Technical Services, Inc.

Hilliard, OH

Hilliard, OH | 16 awards | Top agency Department of Energy | NAICS 561612

$18,142,731

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