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

Gannett Fleming, Inc.

Camp Hill, PA

Camp Hill, PA | 5 awards | Top agency Department of Defense | NAICS 541512

$5,356,440

Sierra7, Inc.

Mclean, VA

Mclean, VA | 141 awards | Top agency Department of Veterans Affairs | NAICS 541512

$22,565,759

Caci-iss, LLC

Chantilly, VA

Chantilly, VA | 26 awards | Top agency Department of Defense | NAICS 517110

$267,679,192

Intellect Solutions, LLC

Vienna, VA

Vienna, VA | 86 awards | Top agency Department of Defense | NAICS 541511

$56,181,575

Amivero LLC

Reston, VA

Reston, VA | 80 awards | Top agency General Services Administration | NAICS 541511

$8,568,424

Jones Lang Lasalle Americas, Inc.

Washington, DC

Washington, DC | 191 awards | Top agency Department of Defense | NAICS 541611

$483,875,658

Concept Plus, LLC

Fairfax, VA

Fairfax, VA | 66 awards | Top agency Department of Defense | NAICS 541511

$69,199,573

Prescient Edge Corporation

Mc Lean, VA

Mc Lean, VA | 78 awards | Top agency General Services Administration | NAICS 541715

$84,450,486

Cloud Lake Technology LLC

Herndon, VA

Herndon, VA | 32 awards | Top agency Department of Defense | NAICS 541519

$42,072,362

Mantech Gray Hawk Systems, Inc.

Falls Church, VA

Falls Church, VA | 5 awards | Top agency Department of Defense | NAICS 541330

$13,013,453

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