Tetra Tech, Inc. 401(k) Review & Grade
Tetra Tech, Inc. and Subsidiaries Retirement Plan
New Milford, CTProfessional, Scientific & Technical Services11,168 active participantsPlan year 2024
Estimate from the plan's Form 5500 filing · How we grade
$2,933Employer $ per active participant
$6,813Employee $ saved per active participant
0.06%Direct admin cost, % of plan assets
$2.2BNet plan assets, end of year
$198,347Average balance per account
Score breakdown
- Employer generosity25.4 / 5051th percentile for employer $ per participant
- Low cost15.5 / 2562th percentile for low admin cost vs. same-size plans
- Employee saving6.1 / 1541th percentile for employee $ per participant
- Plan features3 / 10Default investment
- Red-flag deductions-13 pts2 issues reported on the filing
Total score37 / 100 · Grade D
This plan vs. peers
Peers: Professional, Scientific & Technical Services plans with 10,000+ active participants (70 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 51th |
| Lower admin cost | 62th |
| Employee saving | 41th |
| Peers that auto-enroll | 39% |
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Red flags from the filing
Late deposits: the filing says some employee contributions were not sent to the plan on time ($1,268 reported). That's money taken from paychecks that sat with the employer longer than the law allows.
Corrective distributions: the plan refunded $28,370 in contributions, which usually means it failed annual nondiscrimination testing.
What to do if you're in this plan
- Tetra Tech put in about $2,933 per active participant, more than the typical peer ($2,932). Contribute at least enough to collect the full match. Skipping it leaves part of your pay on the table.
- The filing shows total dollars, not the match formula. Ask HR for the Summary Plan Description so you know the exact match and vesting schedule.
- Fund expense ratios aren't in the filing. Look them up in your 404(a)(5) fee disclosure and favor low-cost index or target-date funds.
- The plan reported late deposits of employee contributions. Compare your pay stubs with your account statements, and contact the plan administrator if money shows up late.
- Changing jobs? You can usually leave the money in the plan, move it to your new employer's plan, or roll it into an IRA. Don't cash out: you'd owe taxes and possibly a 10% penalty.
The raw numbers from the filing
| Employer contributions | $32,751,403 |
| Participant (employee) contributions | $76,086,691 |
| Other contributions (incl. rollovers in) | $10,959,065 |
| Administrative expenses paid from the plan | $1,339,184 |
| Contract administrator fees | $347,447 |
| Investment advisory & management fees | $942,941 |
| Benefits paid out | $199,102,304 |
| Net assets, start / end of year | $2.0B / $2.2B |
| Active participants, start / end of year | 11,882 / 10,454 |
| Participants with account balances | 10,892 |
| Auto-enrollment (feature code 2S) | Not reported |
| Auditor | Baker Tilly US, LLP |
Largest service providers (Schedule C)
| Edelman Financial Engines, LLC | $804,511 reported compensation |
| Principal Life Insurance Company | $522,090 reported compensation |
| Candlewood Consultants | $88,430 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20260713112350NAL0000113041001, received 2026-07-13, EIN 95-4148514, plan #001, plan year 2024-10-01 to 2025-09-30. Verify at efast.dol.gov.