Department of Homeland Security NAICS 334511 and PSC R425 contractors

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing. SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 334511 · PSC R425

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$107,001,581,957

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 334511 and PSC R425

Leidos Security Detection & Automation, Inc.

Tewksbury, MA

Tewksbury, MA | 56 awards | Top agency Department of Homeland Security | NAICS 334517

$222,936,793

Tyonek Services Overhaul Facility-stennis, LLC

Kiln, MS

Kiln, MS | 42 awards | Top agency Department of Defense | NAICS 488190

$94,306,765

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