TETRA TECH, INC. GROUP LIFE, DISABILITY AND VISION PLAN

[ EIN: 95-4148514 | Plan No. 502 ]

TETRA TECH, INC. GROUP LIFE, DISABILITY AND VISION PLAN is reported on Form 5500 as a DFE/Master Trust plan sponsored by TETRA TECH, INC.. For the 2023 plan year, the plan had 0 participants and total assets of $0.

DFE/Master Trust plans are subject to ERISA disclosure requirements and annual reporting obligations.

---

Plan Sponsor: TETRA TECH, INC.

Location: 3475 EAST FOOTHILL BLVD., PASADENA, CA 91107

EIN: 954148514

Plan Number: 502

Plan Year: 2023

Plan Size: Large Plan

Plan Entity Type: DFE/Master Trust

Plan Type: DFE/Master Trust

Participants: 0

Total Assets: $0

---