Department of State NAICS 541690 contractors in Colorado

Other Scientific and Technical Consulting Services. Use this deeper state-buyer-industry page to see which visible contractors sit closest to this exact overlap in the public AwardRegistry layer.

Colorado + Department of State

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$188,201,905

Visible recipients tied to Department of State, Colorado, and NAICS 541690

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.

$188,201,905