Department of Defense NAICS 541690 contractors

Other Scientific and Technical Consulting Services. Contractors in this NAICS lane under Department of Defense.

Agency: Department of Defense

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$1,998,403,338

Visible recipients tied to Department of Defense and NAICS 541690

Chenega Federal Systems, LLC

Bethesda, MD

Bethesda, MD | 20 awards | Top agency Department of Defense | NAICS 541330

$50,344,239

Caci Intelligence Solutions, LLC

Herndon, VA

Herndon, VA | 5 awards | Top agency Department of Defense | NAICS 541990

$167,469,698

Torch Technologies INC

Huntsville, AL

Huntsville, AL | 310 awards | Top agency Department of Defense | NAICS 541712

$2,250,000

Mantech Mission, Cyber And Technology Solutions, Inc.

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541690

$106,175,489

Pae Government Services, Inc.

Chantilly, VA

Chantilly, VA | 943 awards | Top agency Department of State | NAICS 561210

$320,210,277

Noblis, Inc.

Reston, VA

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

$94,243,367

Analytical Mechanics Associates, Inc.

Hampton, VA

Hampton, VA | 129 awards | Top agency National Aeronautics and Space Administration | NAICS 541712

$2,500

Leidos Engineering LLC

Reston, VA

Reston, VA | 5 awards | Top agency Department of Defense | NAICS 541310

$1,150,000

Esimplicity INC

Silver Spring, MD

Silver Spring, MD | 101 awards | Top agency Department of Health and Human Services | NAICS 541512

$3,980,235

Shaw Infrastructure, Inc.

Monroeville, PA

Monroeville, PA | 5 awards | Top agency Department of Defense | NAICS 561210

$20,988,179

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