General Services Administration NAICS 237990 and PSC F999 contractors

Other Heavy and Civil Engineering Construction. OTHER ENVIRONMENTAL SERVICES. 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 237990 · PSC F999

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$342,658,373

State overlap

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 237990 and PSC F999

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.

$342,658,373