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Form 5500 · Retirement plan · NEW MILFORD, CT

TETRA TECH, INC.

The filing calls this plan TETRA TECH, INC. AND SUBSIDIARIES RETIREMENT PLAN.

TETRA TECH, INC. of NEW MILFORD, CT files a Form 5500 for its retirement plan. Schedule A discloses 1 annuity or guaranteed-interest contract held by the plan, written by VOYA RETIREMENT INSURANCE AND ANNUITY COMPANY. These are investment and funding contracts, not group health or welfare coverage. No medical, dental or life benefit is reported on this filing.

Agent of record (Schedule A)
Not disclosed
Insurance company
VOYA RETIREMENT INSURANCE AND ANNUITY COMPANY
Contract year ends
Decemberas filed for plan year 2025

Sourced from U.S. DOL EFAST2 Form 5500 · EIN 95-4148514 · plan 001 · plan year 2025, filed Jul 13, 2026

Participants at the start of the year
15,680
Contracts on file
1
Contract value
$2,099,114
Plan year end
December

Plan brief

Schedule A lists 1 insurance contract held by the plan — an annuity, a guaranteed-interest account or a similar funding vehicle, with VOYA RETIREMENT INSURANCE AND ANNUITY COMPANY.

The contracts held $2,099,114 at the end of the plan year, as reported on Schedule A.

The filing discloses no agent commission on these contracts.

A Schedule A is filed for a retirement plan when plan assets sit in an insurance company contract. It reports the contract's balances and any agent commission. It does not report a health, dental or life premium, and it does not give a group renewal date.

The contract year ended in December.

Schedule A insurance contracts

CarrierContract typeCoveredYear endsContract valueCommission
VOYA RETIREMENT INSURANCE AND ANNUITY COMPANYAnnuity / GIC67December$2,099,114$0

Covered = persons covered at policy year end, as filed on Schedule A for that policy — often certificates or one class, not the whole plan. Premium = the filing’s own premium/charges figure; “—” means not credibly reported.

See the filing at the Department of Labor

Administrator and service providers

Plan administrator on the filing
TETRA TECH, INC.
EIN 95-4148514
PRINCIPAL LIFE INSURANCE COMPANY
Contract administrator · EIN 42-0127290
$360,747
paid directly by the plan
BAKER TILLY US LLP
Accounting and audit · EIN 30-1413443
$35,700
paid directly by the plan
CANDLEWOOD CONSULTANTS
Contract administrator · EIN 85-0516059
$88,430
paid directly by the plan
CAPITAL RESEARCH
INVESTMENT ADVISORY · EIN 95-4660745
$50,000
paid directly by the plan
EDELMAN FINANCIAL ENGINES, LLC
INV ADV, PARTICIPANTS · EIN 94-3250323
$804,511
paid directly by the plan

The plan administrator is from line 3a of the main form. The service providers are named on Schedule C of this filing. We publish company names only.

What the plan holds

Plan assets at year end
$2,160,392,069
Paid out in benefits
$199,102,304
Participants at the start of the year
15,680
Participants with account balances
10,892

Sourced from U.S. DOL EFAST2 Form 5500 · Schedule H

Who runs the plan

Independent accountantEIN 30-1413443
BAKER TILLY US, LLP
Accountant's opinion (Schedule H, line 3a)
Unmodified
Audit fee
$35,700

From Schedule H of this filing.

We can name the recordkeeper and the auditor for large plans, the ones that file a Schedule C or a Schedule H. Smaller plans do not have to report either, so for most 401(k) plans in the country that information is not public anywhere.

The filing reports that employee contributions were not forwarded to the plan on time (line 4a).

Other plans filed by this employer

Group Benefit PlanInsured benefit plan · 33 Schedule A contractsRenews ~Jan 1Fully Insured Hmo Benefit PlanInsured benefit plan · 24 Schedule A contractsRenews ~Jan 1Group Life, Disability And Vision PlanInsured benefit plan · 14 Schedule A contractsRenews ~Jan 1Flexible Spending PlanForm 5500 filing · no insured Schedule A contractsPuerto Rico Retirement PlanForm 5500 filing · no insured Schedule A contracts

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