Department of Defense NAICS 541620 and PSC Y299 contractors

Environmental Consulting Services. CONTRUCT/ALL OTHER NON-BLDG FACS. 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 Y299

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$112,934,990

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541620 and PSC Y299

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.

$112,934,990