401(k) · DOL Form 5500 · 2022

Tetra Tech, Inc. 401(k) Plan

Data updated 2026-08-11

$1.5B
Total assets
9,951
Participants
99th
Percentile by assets
$153,926
Avg per participant
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Official DOL plan name: Tetra Tech, Inc. and Subsidiaries Retirement Plan · Sponsored by Tetra Tech, Inc. · California · Professional & Technical Services

$1.5B in assets, 9,951 participants

Tetra Tech, Inc.'s Tetra Tech, Inc. and Subsidiaries Retirement Plan reported $1.5B in total assets and 9,951 participants in its 2022 DOL Form 5500 filing, ranking in the 99th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • 99th percentile by assets (of 139,126 plans)
  • #21,464 in Professional & Technical Services (21,562 peers)

Coverage in California

Tetra Tech, Inc. and Subsidiaries Retirement Plan covers 9,951 participants in California, 16x the typical California plan (state average ~630 per filing). Assets: $1.5B.

$1.5B
total plan assets (2022 EOY)
9,951
covered participants
99th
percentile by assets (of 139,126 plans)
$153,926
avg assets per participant

Participants vs California filers

In California, the average filing covers about 630 participants across 15,291 plans. Tetra Tech, Inc. and Subsidiaries Retirement Plan reports 9,951 participants - 16x that state average ($1.5B EOY assets).

California filing particulars

Total Assets (Beginning of Year)$1.4B
Net Assets (End of Year)$1.5B
Net Income$175M
Employer EIN954148514
Plan Effective Date1988-03-08
Filing StatusFILING RECEIVED

Sponsor Plan History (Tetra Tech, Inc.)

$1.4B$1.6B$1.8B$2B$2.2B$2.4B 202220232024 $1.53B $2.16B ▲ +41.2%
Total plan assets by year, all Tetra Tech, Inc. plans on file
Year Plans Participants Total Assets
2022 2 9,967 $1.5B
2023 2 10,703 $2.0B
2024 2 11,996 $2.2B

Nearby 401(k) Plans in California

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Tetra Tech, Inc. and Subsidiaries Retirement Plan vs. nearby 401(k) plans in California, assets vs. participants

Tetra Tech, Inc. and Subsidiaries Retirement Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. 050000100000150000200000250000 -1001020304050 Total assets ($B) Participants Tetra Tech, Inc. and…Wells Fargo & Compan…Google LLC 401(k) Sa…Oracle Corporation 4…Chevron Employee Sav…Intel 401(k) Savings…
Tetra Tech, Inc. and Subsidiaries Retirement Plan vs. nearby 401(k) plans in California, assets vs. participants

Scale composition for Tetra Tech, Inc. and Subsidiaries Retirement Plan

Tetra Tech, Inc. and Subsidiaries Retirement Plan reports $1.5B in end-of-year assets across 9,951 participants (0.012% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.011% of 93,925,755 covered participants) - about $153,926 per participant (1.1x the national average assets-per-participant) . Net income for plan year 2022 was $175M.

This plan identity (EIN 954148514, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.5B to $2.2B (+41.0%) while covered participants moved from 9,951 to 11,882 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 9,951 $1.5B This page
2023 10,689 $2.0B Open filing
2024 · index core 11,882 $2.2B Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Tetra Tech, Inc. and Subsidiaries Retirement Plan by total assets, not by location.

Frequently Asked Questions

How did Tetra Tech, Inc. and Subsidiaries Retirement Plan assets move in 2022?
Tetra Tech, Inc. and Subsidiaries Retirement Plan grew at a solid clip - up 13.1% during 2022, from $1.4B to $1.5B. Reported net income was $175M.
How have Tetra Tech, Inc. plan assets changed over time?
Across 3 plan years on file (2022-2024), Tetra Tech, Inc.'s sponsor-wide assets grew 41.1%, from $1.5B to $2.2B.
Where does Tetra Tech, Inc. and Subsidiaries Retirement Plan rank by assets among Form 5500 filers?
Tetra Tech, Inc. and Subsidiaries Retirement Plan ranks in the 99th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Tetra Tech, Inc. and Subsidiaries Retirement Plan?
Among 401(k) plans in other states, the closest by assets is Bnp Paribas 401(k) Savings Plan in NY ($1.5B, 3,374 participants).

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Filing takeaways

Ways to act on Tetra Tech, Inc. and Subsidiaries Retirement Plan's numbers.