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

Aerojet Rocketdyne Of De, INC

Canoga Park, CA

Canoga Park, CA | 32 awards | Top agency National Aeronautics and Space Administration | NAICS 541712

$693,605,017

Tatitlek Support Services INC

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 561210

-$1,593,680

Cognosante Mvh LLC

Arlington, VA

Arlington, VA | 60 awards | Top agency Department of Veterans Affairs | NAICS 541512

$36,459,384

Noblis, Inc.

Reston, VA

Reston, VA | 372 awards | Top agency Department of Transportation | NAICS 541330

$237,683,736

Aar Government Services, Inc.

Wood Dale, IL

Wood Dale, IL | 429 awards | Top agency Department of Defense | NAICS 488190

$28,645,341

Aecom Energy & Construction, Inc.

Greenwood Village, CO

Greenwood Village, CO | 5 awards | Top agency Department of Defense | NAICS 237990

$7,661,197

Chenega Government Consulting, LLC

Chesapeake, VA

Chesapeake, VA | 5 awards | Top agency Department of Energy | NAICS 541512

$49,395,109

Credence Management Solutions Limited Liability Company

Mclean, VA

Mclean, VA | 222 awards | Top agency Department of Defense | NAICS 541330

$84,831,176

Govcio, LLC

Fairfax, VA

Fairfax, VA | 94 awards | Top agency Department of Veterans Affairs | NAICS 541512

$79,266

Peraton Risk Decision Inc.

Loveland, CO

Loveland, CO | 54 awards | Top agency Office of Personnel Management | NAICS 561611

$13,322,159

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