Environmental Protection Agency NAICS 541611 and PSC R429 contractors

Administrative Management and General Management Consulting Services. SUPPORT- PROFESSIONAL: EMERGENCY RESPONSE/DISASTER PLANNING/PREPAREDNESS SUPPORT. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Environmental Protection Agency.

Environmental Protection Agency · NAICS 541611 · PSC R429

Last updated: April 3, 2026

Visible recipients

Mapped obligations

$434,126,694

State overlap

Top recipients

Visible recipients in the Environmental Protection Agency overlap of NAICS 541611 and PSC R429

Tetra Tech, Inc.

Pasadena, CA

Tetra Tech, Inc. is a federal category business profile based in Pasadena, CA. The current public data layer shows $130,835,501 in visible federal obligations across 260 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.

$434,126,694