Department of Homeland Security NAICS 541620 and PSC B510 contractors

Environmental Consulting Services. SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541620 · PSC B510

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$148,011,769

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541620 and PSC B510

Hdr Environmental, Operations And Construction, Inc.

Englewood, CO

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

Michael Baker International Holdco Corporation

Moon Township, PA

Moon Township, PA | 5 awards | Top agency Department of Defense | NAICS 541330

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