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

Peraton Risk Decision Inc.

Loveland, CO

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

$7,943,639

Alutiiq Global Solutions, LLC

Anchorage, AK

Anchorage, AK | 5 awards | Top agency Department of Defense | NAICS 236220

$29,925,038

Maximus INC

Mclean, VA

Mclean, VA | 5 awards | Top agency Department of Justice | NAICS 541611

$132,317,118

Caci Technologies, LLC

Chantilly, VA

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

$263,036,344

Steampunk, Inc.

Mc Lean, VA

Mc Lean, VA | 126 awards | Top agency Department of Homeland Security | NAICS 541512

$644,331

Mantech Information Systems & Technology Corporation

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Justice | NAICS 541611

$67,405,484

Avantus Federal LLC

Mc Lean, VA

Mc Lean, VA | 95 awards | Top agency Department of Defense | NAICS 541330

$274,302,729

International Sos Government Services LLC

San Antonio, TX

San Antonio, TX | 61 awards | Top agency Department of Defense | NAICS 524114

$942,388

Guidehouse LLP

Mc Lean, VA

Mc Lean, VA | 134 awards | Top agency Department of State | NAICS 541611

$1,830,311,801

Visionary Integration Professionals LLC

Folsom, CA

Folsom, CA | 15 awards | Top agency Department of Homeland Security | NAICS 541512

$3,890,973

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