Agency + NAICS + PSC page

Department of Defense NAICS 541620 and PSC F108 contractors

Environmental Consulting Services. ENVIRONMENTAL SYSTEMS PROTECTION- ENVIRONMENTAL REMEDIATION. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Defense.

Department of Defense · NAICS 541620 · PSC F108
Last updated: April 8, 2026

Visible recipients

9

Mapped obligations

$2,880,878,241

State overlap

4

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541620 and PSC F108

Tetra Tech Ec, Inc.

San Diego, CA

Tetra Tech Ec, Inc. is a federal category business profile based in San Diego, CA. The current public data layer shows $418,648,162 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 562910 (Remediation Services). The profile also shows meaningful product and service activity in PSC F108.

$724,348,133

Weston Solutions INC

West Chester, PA

Weston Solutions INC is a federal category business profile based in West Chester, PA. The current public data layer shows $169,108,559 in visible federal obligations across 378 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 Z2JZ.

$958,897,248

Ea Engineering, Science, And Technology, Inc., Pbc

Hunt Valley, MD

Ea Engineering, Science, And Technology, Inc., Pbc is a federal category business profile based in Hunt Valley, MD. The current public data layer shows $92,540,844 in visible federal obligations across 522 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 F999.

$600,957,670

Navarro Research And Engineering, Inc.

Oak Ridge, TN

Navarro Research And Engineering, Inc. is a federal category business profile based in Oak Ridge, TN. The current public data layer shows $65,564,010 in visible federal obligations across 102 awards or transactions. Department of Energy 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 R799.

$213,912,350

Ce2 Kleinfelder Jv

Pleasanton, CA

Ce2 Kleinfelder Jv is a federal category business profile based in Pleasanton, CA. The current public data layer shows $34,854,473 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 562910 (Remediation Services). The profile also shows meaningful product and service activity in PSC F108.

$24,719,928

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.

$145,890,934

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.

$74,084,286

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.

$95,440,620

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.

$42,627,072