Department of Homeland Security NAICS 541611 contractors

Administrative Management and General Management Consulting Services. Contractors in this NAICS lane under Department of Homeland Security.

Agency: Department of Homeland Security

Last updated: April 19, 2026

Visible recipients

121

Mapped obligations

$33,290,667,160

Visible recipients tied to Department of Homeland Security and NAICS 541611

Arc Aspicio LLC

Arlington, VA

Arlington, VA | 59 awards | Top agency Department of Homeland Security | NAICS 541512

$32,288,209

Aalis Management Consulting LLC

Woodbridge, VA

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

$16,055,369

Pci Guidehouse Jv LLC

Atmore, AL

Atmore, AL | 12 awards | Top agency Department of Health and Human Services | NAICS 541513

$2,371,561

Cognosante Cds, LLC

Arlington, VA

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

$91,940,523

Solutions Through Innovative Technologies INC

Fairborn, OH

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

$18,939,039

Zantech It Services, Inc.

Reston, VA

Reston, VA | 51 awards | Top agency Department of Homeland Security | NAICS 541611

$186,071,756

Peraton Services & Solutions Inc.

Herndon, VA

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

$87,435,289

Onezero Solutions, LLC

Alexandria, VA

Alexandria, VA | 31 awards | Top agency Department of Homeland Security | NAICS 541512

$3,170,854

Connsci LLC

Gaithersburg, MD

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

$30,000

Variq Corporation

Mclean, VA

Mclean, VA | 19 awards | Top agency Department of Homeland Security | NAICS 541512

$18,795,554

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