Department of Homeland Security PSC Z299 contractors

MAINT, REP/ALTER/ALL OTHER. Contractors in this PSC lane under Department of Homeland Security.

Agency: Department of Homeland Security

Last updated: April 13, 2026

Visible recipients

Mapped obligations

$408,091,114

Visible recipients tied to Department of Homeland Security and PSC Z299

Granite Construction Company

Watsonville, CA

Watsonville, CA | 56 awards | Top agency Department of Defense | NAICS 237310

Amentum Technical Services LLC

Aiken, SC

Aiken, SC | 6 awards | Top agency Department of Transportation | NAICS 541330

Marcon Engineering, INC

Escondido, CA

Escondido, CA | 5 awards | Top agency Department of Defense | NAICS 236220

Sealaska Environmental Services, LLC

Juneau, AK

Juneau, AK | 20 awards | Top agency Department of Defense | NAICS 562910

Parsons Infrastructure & Technology Group Inc.

San Antonio, TX

San Antonio, TX | 5 awards | Top agency Department of Defense | NAICS 541310

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