Employer with a benefit plan ยท SEC filer
TETRA TECH, INC.
3475 EAST FOOTHILL BLVD., PASADENA, CA 91107
EIN
95-4148514
SEC CIK
0000831641
SEC · 2026-08-06
Industry (SIC)
Services-Engineering Services (8711)
SEC · 2026-08-06
State of incorporation
DE
SEC · 2026-08-06
Ticker
TTEK
SEC · 2026-08-06
Latest SEC filing
4 2026-08-06
SEC · 2026-08-06
Benefit plan 2, 2024 filing
TETRA TECH, INC. PUERTO RICO RETIREMENT PLAN
DOL · 2026-07-13
Participants (start of year)
120
DOL · 2026-07-13
Plan features
code 2E2F2G2J2K2T3C
DOL · 2026-07-13
Plan type
Single-employer plan
DOL · 2026-07-13
Business code (NAICS)
541330
DOL · 2026-07-13
Benefit plan 1, 2024 filing
TETRA TECH, INC. AND SUBSIDIARIES RETIREMENT PLAN
DOL · 2026-07-13
Participants (start of year)
15,680
DOL · 2026-07-13
Plan features
code 2E2F2G2J2K2R2T3H
DOL · 2026-07-13
Plan type
Single-employer plan
DOL · 2026-07-13