Department of the Interior NAICS 541620 and PSC Y299 contractors in California

Environmental Consulting Services. CONTRUCT/ALL OTHER NON-BLDG FACS. Use this deepest state-buyer cross-code page to see which visible contractors sit in the exact overlap of buyer, geography, industry, and product-service lane.

California · Department of the Interior

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$112,934,990

Cross-code depth

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Top recipients

Visible recipients tied to Department of the Interior, California, 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