Department of Homeland Security NAICS 541620 contractors in Colorado

Environmental 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 Homeland Security

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$94,330,890

Visible recipients tied to Department of Homeland Security, Colorado, and NAICS 541620

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.

$62,574,472

Arcadis U.s., Inc.

Highlands Ranch, CO

Arcadis U.s., Inc. is a federal category business profile based in Highlands Ranch, CO. The current public data layer shows $28,235,915 in visible federal obligations across 100 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 F999.

$31,756,418

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