Department of Homeland Security NAICS 541690 and PSC B510 contractors

Other Scientific and Technical Consulting Services. SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Homeland Security.

Department of Homeland Security · NAICS 541690 · PSC B510

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$271,085,576

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541690 and PSC B510

Hdr Environmental, Operations And Construction, Inc.

Englewood, CO

Hdr Environmental, Operations And Construction, Inc. is a federal category business profile based in Englewood, CO. The current public data layer shows $59,678,442 in visible federal obligations across 109 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC C211.

$271,085,576