NAICS + PSC page

NAICS 541620 and PSC F999 contractors

Environmental Consulting Services. OTHER ENVIRONMENTAL SERVICES. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 541620 + PSC F999
Last updated: April 8, 2026

Visible recipients

19

Mapped obligations

$2,745,098,809

State overlap

0

Top recipients

Visible recipients in the NAICS 541620 and PSC F999 overlap

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.

$378,825,502

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.

$27,803,961

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.

$2,493,048

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.

$260,983,707

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.

$24,821,898

Ahtna Professional Services, Inc.

Anchorage, AK

Ahtna Professional Services, Inc. is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $17,309,386 in visible federal obligations across 23 awards or transactions. Department of Homeland Security appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$0

Ahtna Solutions, LLC

Anchorage, AK

Ahtna Solutions, LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $14,194,644 in visible federal obligations across 62 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.

$32,094,917

Brown And Caldwell

San Diego, CA

Brown And Caldwell is a federal category business profile based in San Diego, CA. The current public data layer shows $3,910,103 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 C211.

$3,495,517

Koniag Operations Services LLC

Anchorage, AK

Koniag Operations Services LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $1,346,163 in visible federal obligations across 6 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561720 (Janitorial Services). The profile also shows meaningful product and service activity in PSC S201.

$4,947,028
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