Department of Homeland Security NAICS 541330 and PSC R499 contractors

Engineering Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541330 · PSC R499

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$216,520,175,099

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541330 and PSC R499

Aalis Management Consulting LLC

Woodbridge, VA

Woodbridge, VA | 29 awards | Top agency Department of the Interior | NAICS 541611

$6,577,906

Cognosante Cds, LLC

Arlington, VA

Arlington, VA | 20 awards | Top agency Department of Homeland Security | NAICS 541512

$98,182,816

Solutions Through Innovative Technologies INC

Fairborn, OH

Fairborn, OH | 72 awards | Top agency Department of Defense | NAICS 541330

$639,321,874

Bevilacqua Research Corporation

Huntsville, AL

Huntsville, AL | 41 awards | Top agency Department of Defense | NAICS 541330

$246,015,063

Peraton Services & Solutions Inc.

Herndon, VA

Herndon, VA | 17 awards | Top agency National Aeronautics and Space Administration | NAICS 541330

$1,315,149,285

Connsci LLC

Gaithersburg, MD

Gaithersburg, MD | 33 awards | Top agency Department of Health and Human Services | NAICS 611420

$204,523

Crow Tribe

Crow Agency, MT

Crow Agency, MT | 20 awards | Top agency Department of the Interior | NAICS 237110

$527,744

Indigo It, LLC

Herndon, VA

Herndon, VA | 26 awards | Top agency Department of Homeland Security | NAICS 541512

$6,809,057

Alutiiq Technical Services LLC

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 541330

$132,541,290

Ironarch Technology LLC

Arlington, VA

Arlington, VA | 41 awards | Top agency Department of Veterans Affairs | NAICS 541330

$34,253,161

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