401(k) · DOL Form 5500 · 2022

Terraphase Engineering 401(k) Plan

Data updated 2026-08-25

$15M
Total assets Small plan by assets
111
Participants Small participant base
73rd
Percentile by assets National rank
$138,309
Avg per participant Near avg balance/head
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Official DOL plan name: Terraphase Engineering 401(k) Plan · Sponsored by Terraphase Engineering · California · Professional & Technical Services

$15M in assets, 111 participants

Terraphase Engineering's Terraphase Engineering 401(k) Plan reported $15M in total assets and 111 participants in its 2022 DOL Form 5500 filing, ranking in the 73rd 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.

  • #15,645 in Professional & Technical Services (21,562 peers)

Coverage in California

Terraphase Engineering 401(k) Plan covers 111 participants in California, about 18% of the average California filer (state average ~630 per filing). Assets: $15M.

#15,645
in Professional & Technical Services (21,562 peers)
-3.7%
assets change YoY

The plan reported a net loss of $595K for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Terraphase Engineering 401(k) Plan's outsized position by total assets

Terraphase Engineering 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$15,352,342 Top 27% higher than 73% of 139,123 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022

Terraphase Engineering 401(k) Plan among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Terraphase Engineering 401(k) Plan sits mid-pack in the medium band (111 participants).

EBSA filing schedule strip

Filing strip 273543127 · Terraphase Engineering PY 2022 · 401(k)

Terraphase Engineering 401(k) Plan · $15M · 111 · 73rd

  • BOY $15M
  • BOY 111
  • BOY 73rd
  • BOY 401(k)
  • BOY near Advantage Computing Systems, Inc. 401(k) Plan
  • BOY ind #15645

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Professional & Technical Services retirement plans → · Plans in California →

Terraphase Engineering 401(k) Plan in the asset neighbourhood

Terraphase Engineering 401(k) PlanTerraphase Engineering 401(k…$15MAdvantage Computing Systems, Inc. 401(k) PlanAdvantage Computing Systems,…$15MStrategic Management Solutions, LLC 401(k) Profit Sharing PlanStrategic Management Solutio…$15MWillmeng Construction, Inc. 401(k) PlanWillmeng Construction, Inc. …$15MCentrica Business Solutions US, Inc. 401(k) PlanCentrica Business Solutions …$15M
End-of-year total assets ($M) among Terraphase Engineering 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

California filing particulars

Total Assets (Beginning of Year)$16M
Net Assets (End of Year)$15M
Net Income-$595K
Employer EIN273543127
Plan Effective Date2011-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Terraphase Engineering)

Sponsor-wide plan assets over time

All Terraphase Engineering plans reported in each filing year

Latest sponsor-wide plan assets
$30M 97.34536919513647% vs 2022
2024 filing year
$10M$15M$20M$25M$30M$35M 202220232024 $15.4M $30.3M ▲ +97.4%
Year Plans Participants Total Assets
2022 1 111 $15M
2023 1 121 $25M
2024 1 152 $30M

Nearby 401(k) Plans in California

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

Terraphase Engineering 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -200204060 Total assets ($B) Participants Terraphase Engineering 401(k) Plan, Total assets ($B): 0.015352342 · Participants: 111Terraphase Engineering 401(k) PlanWells Fargo & Company 401(k) Plan, Total assets ($B): 45.765616608 · Participants: 205865Wells Fargo & Company 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 28.89820221 · Participants: 102963Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 21.851716605 · Participants: 46320Oracle Corporation 401(k) Savings and Investment PlanChevron Employee Savings Investment Plan, Total assets ($B): 18.60989746 · Participants: 19946Chevron Employee Savings Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 18.361585903 · Participants: 54672Intel 401(k) Savings Plan
Terraphase Engineering 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants
Compare Terraphase Engineering 401(k) Plan side-by-side with 3 peers →

Terraphase Engineering 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Advantage Computing Systems, Inc. 401(k) Plan in MI ($15M); by covered participants it is Vador Ventures Inc 401(k) Profit Sharing Plan & Trust in MD (111 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (111 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Terraphase Engineering 401(k) Plan assets move in 2022? ▼
Terraphase Engineering 401(k) Plan edged down modestly - down 3.7% during 2022, from $16M to $15M. Reported net income was -$595K.
How have Terraphase Engineering plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Terraphase Engineering's sponsor-wide assets grew 97.3%, from $15M to $30M.
Which 401(k) plans are similar in size to Terraphase Engineering 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Advantage Computing Systems, Inc. 401(k) Plan in MI ($15M, 64 participants).
Which 401(k) plans cover a similar participant headcount to Terraphase Engineering 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Vador Ventures Inc 401(k) Profit Sharing Plan & Trust in MD (111 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 273543127.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.