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General Services Administration NAICS 236220 and PSC F108 contractors

Commercial and Institutional Building Construction. 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 General Services Administration.

General Services Administration · NAICS 236220 · PSC F108
Last updated: April 7, 2026

Visible recipients

5

Mapped obligations

$6,594,923,306

State overlap

3

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 236220 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.

$800,386,981

Aecom Technical Services, Inc.

Los Angeles, CA

Aecom Technical Services, Inc. is a federal category business profile based in Los Angeles, CA. The current public data layer shows $294,508,288 in visible federal obligations across 1,077 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.

$1,162,950,547

Sealaska Environmental Services, LLC

Juneau, AK

Sealaska Environmental Services, LLC is a federal alaskan native corporation owned firm profile based in Juneau, AK. The current public data layer shows $61,920,218 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 F999.

$18,253,742

Relyant Global LLC

Maryville, TN

Relyant Global LLC is a federal category business profile based in Maryville, TN. The current public data layer shows $58,619,056 in visible federal obligations across 66 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 F108.

$368,854,792

Gilbane Federal

Concord, CA

Gilbane Federal is a federal category business profile based in Concord, CA. The current public data layer shows $33,832,334 in visible federal obligations across 58 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 Y1AZ.

$4,244,477,244