Agency + NAICS page

Department of Defense NAICS 541620 contractors

Environmental Consulting Services. Use this buyer-scoped industry page to see which visible contractors sit closest to this NAICS lane under Department of Defense.

Agency: Department of Defense
Last updated: April 8, 2026

Visible recipients

47

Mapped obligations

$3,560,914,822

Top PSC links

4

Top recipients

Visible recipients tied to Department of Defense and NAICS 541620

Redhorse Corporation

Arlington, VA

Redhorse Corporation is a federal category business profile based in Arlington, VA. The current public data layer shows $30,311,976 in visible federal obligations across 101 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 611430 (Professional and Management Development Training). The profile also shows meaningful product and service activity in PSC R499.

$23,825,026

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

Lime Energy Services Co.

Huntersville, NC

Lime Energy Services Co. is a federal category business profile based in Huntersville, NC. The current public data layer shows $26,987,074 in visible federal obligations across 5 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC 3895.

$0

Mantech-aecom Joint Venture

Herndon, VA

Mantech-aecom Joint Venture is a federal category business profile based in Herndon, VA. The current public data layer shows $25,386,140 in visible federal obligations across 5 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541620 (Environmental Consulting Services). The profile also shows meaningful product and service activity in PSC C219.

$25,386,140

Ahtna Global LLC

Anchorage, AK

Ahtna Global LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $24,004,773 in visible federal obligations across 94 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 562910 (Remediation Services). The profile also shows meaningful product and service activity in PSC F108.

$5,316,878

Michael Baker International Holdco Corporation

Moon Township, PA

Michael Baker International Holdco Corporation is a federal category business profile based in Moon Township, PA. The current public data layer shows $23,540,961 in visible federal obligations across 5 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 C219.

$864,257

Stantec Consulting Services Inc.

Denver, CO

Stantec Consulting Services Inc. is a federal category business profile based in Denver, CO. The current public data layer shows $21,902,417 in visible federal obligations across 138 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 C219.

$176,854,752

Cardinal Point Captains, Inc.

San Diego, CA

Cardinal Point Captains, Inc. is a federal category business profile based in San Diego, CA. The current public data layer shows $20,710,886 in visible federal obligations across 67 awards or transactions. Department of Commerce appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541990 (All Other Professional, Scientific, and Technical Services). The profile also shows meaningful product and service activity in PSC R425.

$16,114,082

Clean Harbors Environmental Services INC

Norwell, MA

Clean Harbors Environmental Services INC is a federal category business profile based in Norwell, MA. The current public data layer shows $20,527,027 in visible federal obligations across 1,632 awards or transactions. Department of Agriculture appears as the strongest visible awarding agency. Top industry concentration is in NAICS 562910 (Remediation Services). The profile also shows meaningful product and service activity in PSC R706.

$39,681,717

Aecom International Inc.

Frankfurt Am Main

Aecom International Inc. is a federal category business profile based in Frankfurt Am Main. The current public data layer shows $19,815,799 in visible federal obligations across 104 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 C212.

$13,173,873
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