Department of Homeland Security PSC R499 contractors

SUPPORT- PROFESSIONAL: OTHER. Contractors in this PSC lane under Department of Homeland Security.

Agency: Department of Homeland Security

Last updated: April 17, 2026

Visible recipients

158

Mapped obligations

$86,414,295,562

Visible recipients tied to Department of Homeland Security and PSC R499

American Systems Corporation

Mclean, VA

Mclean, VA | 295 awards | Top agency Department of Defense | NAICS 541330

$273,552,741

Guidehouse LLP

Mc Lean, VA

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

$994,296,948

Visionary Integration Professionals LLC

Folsom, CA

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

$62,582,904

Securigence LLC

Leesburg, VA

Leesburg, VA | 71 awards | Top agency Department of Defense | NAICS 541511

$2,500

Sev1tech, LLC

Woodbridge, VA

Woodbridge, VA | 225 awards | Top agency Department of Defense | NAICS 541712

$77,823,897

Guidehouse Digital LLC

Mc Lean, VA

Mc Lean, VA | 389 awards | Top agency Department of Homeland Security | NAICS 541512

$185,089,927

Kadiak LLC

Anchorage, AK

Anchorage, AK | 175 awards | Top agency Department of Defense | NAICS 541611

$111,453,804

Src INC

Syracuse, NY

Syracuse, NY | 271 awards | Top agency Department of Defense | NAICS 334511

$376,895,359

Tyonek Worldwide Services INC

Anchorage, AK

Anchorage, AK | 20 awards | Top agency Department of Defense | NAICS 336412

$14,099,308

Credence Dynamo Solutions LLC

Vienna, VA

Vienna, VA | 102 awards | Top agency Department of Defense | NAICS 541330

$101,119,028

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