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

Ssi-venesco Jv LLC

Centreville, VA

Centreville, VA | 23 awards | Top agency Department of Defense | NAICS 541990

Ameresco Federal Solutions, Inc.

Farmingham, MA

Farmingham, MA | 18 awards | Top agency Department of Homeland Security | NAICS 541330

S & K Global Solutions LLC

Polson, MT

Polson, MT | 17 awards | Top agency Department of Defense | NAICS 541511

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