401(k) · DOL Form 5500 · 2022

Proton Energy Systems, Inc. 401(k) Plan

Data updated 2026-08-25

$19M
Total assets Small plan by assets
144
Participants Small participant base
76th
Percentile by assets National rank
$128,907
Avg per participant Near avg balance/head
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Official DOL plan name: Proton Energy Systems, Inc. 401(k) Plan · Sponsored by Proton Energy Systems, Inc. · Connecticut · Manufacturing

$19M in assets, 144 participants

Proton Energy Systems, Inc.'s Proton Energy Systems, Inc. 401(k) Plan reported $19M in total assets and 144 participants in its 2022 DOL Form 5500 filing, ranking in the 76th 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.

  • #13,747 in Manufacturing (20,602 peers)

Coverage in Connecticut

Proton Energy Systems, Inc. 401(k) Plan covers 144 participants in Connecticut, about 20% of the average Connecticut filer (state average ~718 per filing). Assets: $19M.

#13,747
in Manufacturing (20,602 peers)
-13.5%
assets change YoY
0.2×
vs typical plan assets (national mean)

The plan reported a net loss of $3M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Proton Energy Systems, Inc. 401(k) Plan's outsized position by total assets

Proton Energy Systems, Inc. 401(k) Plan vs every filed plan by assets

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

$18,562,574 Top 24% higher than 76% 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

Proton Energy Systems, Inc. 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. Proton Energy Systems, Inc. 401(k) Plan sits mid-pack in the medium band (144 participants).

Published 5500 schedule card

Filing strip 611846104 · Proton Energy Systems, Inc. PY 2022 · 401(k)

Proton Energy Systems, Inc. 401(k) Plan · $19M · 144 · 76th

  • RANK $19M
  • PHOTO 144
  • IND 76th
  • EOY 401(k)
  • 5500 near Gunnison Consulting Group, Inc. 401(k) Plan
  • ASSETS ind #13747

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 Manufacturing retirement plans → · Plans in Connecticut →

Proton Energy Systems, Inc. 401(k) Plan in the asset neighbourhood

Proton Energy Systems, Inc. 401(k) PlanProton Energy Systems, Inc. …$19MGunnison Consulting Group, Inc. 401(k) PlanGunnison Consulting Group, I…$19MRignet, Inc. 401(k) Plan$19MChest and Critical Care Consultants, a Medical Group Profit Sharing PlanChest and Critical Care Cons…$19MMhc 401(k) Plan$19M
End-of-year total assets ($M) among Proton Energy Systems, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Connecticut filing particulars

Total Assets (Beginning of Year)$21M
Net Assets (End of Year)$19M
Net Income-$3M
Employer EIN611846104
Plan Effective Date2004-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Proton Energy Systems, Inc.)

Sponsor-wide plan assets over time

All Proton Energy Systems, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$28M 50.96710186852319% vs 2022
2024 filing year
$15M$20M$25M$30M 202220232024 $18.6M $28M ▲ +51.0%
Year Plans Participants Total Assets
2022 1 144 $19M
2023 1 176 $23M
2024 1 196 $28M

Nearby 401(k) Plans in Connecticut

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

Proton Energy Systems, Inc. 401(k) Plan vs. nearby 401(k) plans in Connecticut, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -200204060 Total assets ($B) Participants Proton Energy Systems, Inc. 401(k) Plan, Total assets ($B): 0.018562574 · Participants: 144Proton Energy Systems, Inc. 401(k) PlanUnited Technologies Corporation Employee Savings Plan, Total assets ($B): 48.916975 · Participants: 55762United Technologies Corporation Employee Savings PlanGE Retirement Savings Plan, Total assets ($B): 24.786830027 · Participants: 57522GE Retirement Savings PlanCiti Retirement Savings Plan, Total assets ($B): 17.438946034 · Participants: 70070Citi Retirement Savings PlanThe Hartford Investment and Savings Plan, Total assets ($B): 5.615003 · Participants: 17724The Hartford Investment and Savings PlanXerox Corporation Savings Plan, Total assets ($B): 3.641347 · Participants: 11876Xerox Corporation Savings Plan
Proton Energy Systems, Inc. 401(k) Plan vs. nearby 401(k) plans in Connecticut, assets vs. participants
Compare Proton Energy Systems, Inc. 401(k) Plan side-by-side with 3 peers →

Proton Energy Systems, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Connecticut, the nearest 401(k) by assets is Gunnison Consulting Group, Inc. 401(k) Plan in VA ($19M); by covered participants it is Combs Concrete Construction Company 401(k) Plan in NC (144 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($19M here).

Similar participant headcount

Nearest other-state filings by covered participants (144 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 Proton Energy Systems, Inc. 401(k) Plan assets move in 2022? ▼
Proton Energy Systems, Inc. 401(k) Plan pulled back noticeably - down 13.5% during 2022, from $21M to $19M. Reported net income was -$3M.
How have Proton Energy Systems, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Proton Energy Systems, Inc.'s sponsor-wide assets grew 51.0%, from $19M to $28M.
Where does Proton Energy Systems, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
Proton Energy Systems, Inc. 401(k) Plan ranks in the 76th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Proton Energy Systems, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Gunnison Consulting Group, Inc. 401(k) Plan in VA ($19M, 132 participants).
Which 401(k) plans cover a similar participant headcount to Proton Energy Systems, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Combs Concrete Construction Company 401(k) Plan in NC (144 participants, $30K 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 611846104.

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.