401(k) · DOL Form 5500 · 2024

Terraphase Engineering 401(k) Plan

Data updated 2026-08-25

$30M
Total assets Below avg plan size
152
Participants Small participant base
77th
Percentile by assets National rank
$199,323
Avg per participant Above avg balance/head
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Official DOL plan name: Terraphase Engineering 401(k) Plan · Sponsored by Terraphase Engineering · California · Professional & Technical Services

$30M in assets, 152 participants

Terraphase Engineering's Terraphase Engineering 401(k) Plan reported $30M in total assets and 152 participants in its 2024 DOL Form 5500 filing, ranking in the 77th 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.

  • #15,628 in Professional & Technical Services (20,173 peers)

Coverage in California

Terraphase Engineering 401(k) Plan covers 152 participants in California, about 24% of the average California filer (state average ~630 per filing). Assets: $30M.

#15,628
in Professional & Technical Services (20,173 peers)
+20.6%
assets growth YoY
0.3×
vs typical plan assets (national mean)

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 2024 · DOL Form 5500

$30,297,136 Top 23% higher than 77% of 123,620 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 2024

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

Plan-year 2024 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 (152 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Terraphase Engineering 401(k) Plan reported participants rose from 121 in the plan year 2023 filing to 152 in the plan year 2024 filing.
  • Terraphase Engineering 401(k) Plan end-of-year assets rose from $25M in the plan year 2023 filing to $30M in the plan year 2024 filing.

See the national 2023→2024 release diff →

Published 5500 schedule card

Filing strip 273543127 · Terraphase Engineering PY 2024 · 401(k)

Terraphase Engineering 401(k) Plan · $30M · 152 · 77th

  • ASSETS $30M
  • PCT 152
  • EIN 77th
  • RANK 401(k)
  • PHOTO near E. a. Renfroe & Company, Inc. 401(k) Plan
  • IND ind #15628

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…$30ME. a. Renfroe & Company, Inc. 401(k) PlanE. a. Renfroe & Company, Inc…$30MCambridge-Lee Industries LLC 401(k) PlanCambridge-Lee Industries LLC…$30MFletcher Yoder, P.C. 401(k) PlanFletcher Yoder, P.C. 401(k) …$30MRobotic Research 401(k) Plan$30M
End-of-year total assets ($M) among Terraphase Engineering 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

California filing particulars

Total Assets (Beginning of Year)$25M
Net Assets (End of Year)$30M
Net Income$5M
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. -50000050000100000150000 -200204060 Total assets ($B) Participants Terraphase Engineering 401(k) Plan, Total assets ($B): 0.030297136 · Participants: 152Terraphase Engineering 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 48.738057415 · Participants: 116712Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 31.02646504 · Participants: 58962Oracle Corporation 401(k) Savings and Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 24.850880304 · Participants: 55298Intel 401(k) Savings PlanApple 401(k) Plan, Total assets ($B): 24.714519387 · Participants: 101450Apple 401(k) PlanCisco Systems,Inc. 401(k) Plan, Total assets ($B): 22.728425546 · Participants: 40452Cisco Systems,Inc. 401(k) 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 E. a. Renfroe & Company, Inc. 401(k) Plan in AL ($30M); by covered participants it is Astadia Incorporated 401(k) Plan in MA (152 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($30M here).

Similar participant headcount

Nearest other-state filings by covered participants (152 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. 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 2024? ▼
Terraphase Engineering 401(k) Plan grew sharply - up 20.6% during 2024, from $25M to $30M. Reported net income was $5M.
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.
Where does Terraphase Engineering 401(k) Plan rank by assets among Form 5500 filers? ▼
Terraphase Engineering 401(k) Plan ranks in the 77th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top quartile of all filed plans by assets).
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 E. a. Renfroe & Company, Inc. 401(k) Plan in AL ($30M, 738 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 Astadia Incorporated 401(k) Plan in MA (152 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

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.