Department of Homeland Security NAICS 562910 and PSC R499 contractors

Remediation Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 562910 · PSC R499

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$1,364,118,864

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 562910 and PSC R499

Wsp USA Environment & Infrastructure Inc.

Blue Bell, PA

Blue Bell, PA | 309 awards | Top agency Department of Defense | NAICS 236220

Hdr Environmental, Operations And Construction, Inc.

Englewood, CO

Englewood, CO | 109 awards | Top agency Department of Defense | NAICS 541330

Advanced Technologies And Laboratories (atl) International, Inc.

Gaithersburg, MD

Gaithersburg, MD | 36 awards | Top agency Department of Energy | NAICS 562910

Agency profile

Loading buyer-level contractor and category paths

Agency + NAICS + PSC page