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filing2023 Form 5500 — Tetra Tech, Inc. And Subsidiaries Retirement Plan
Sponsor: Tetra Tech, Inc.EIN: 95-4148514Plan: 001Ack ID: 20250707101730NAL0001531027001
filing2023 Form 5500 — Tetra Tech, Inc. Puerto Rico Retirement Plan
Sponsor: Tetra Tech, Inc.EIN: 95-4148514Plan: 002Ack ID: 20250707102642NAL0008750706001
filing2023 Form 5500 — Tetra Tech, Inc. Group Benefit Plan
Sponsor: Tetra Tech, Inc.EIN: 95-4148514Plan: 501Ack ID: 20241005145040NAL0021926288001
filing2023 Form 5500 — Tetra Tech, Inc. Group Life, Disability And Vision Plan
Sponsor: Tetra Tech, Inc.EIN: 95-4148514Plan: 502Ack ID: 20241005145333NAL0013631473001
filing2023 Form 5500 — Tetra Tech, Inc. Flexible Spending Plan
Sponsor: Tetra Tech, Inc.EIN: 95-4148514Plan: 506Ack ID: 20241005145556NAL0022904864001
filing2023 Form 5500 — Tetra Tech, Inc. Fully Insured Hmo Benefit Plan
Sponsor: Tetra Tech, Inc.EIN: 95-4148514Plan: 507Ack ID: 20241005145735NAL0012792801001