401(k) · DOL Form 5500 · 2023

Dudek & Bock Spring Mfg 401(k) Plan

Data updated 2026-08-25

$16M
Total assets Small plan by assets
126
Participants Small participant base
68th
Percentile by assets National rank
$124,254
Avg per participant Near avg balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Dudek & Bock 401(k) Tax Deferred Savings Plan · Sponsored by Dudek & Bock Spring Mfg · Illinois · Manufacturing

$16M in assets, 126 participants

Dudek & Bock Spring Mfg's Dudek & Bock 401(k) Tax Deferred Savings Plan reported $16M in total assets and 126 participants in its 2023 DOL Form 5500 filing, ranking in the 68th 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.

  • #10,616 in Manufacturing (18,722 peers)

Coverage in Illinois

Dudek & Bock 401(k) Tax Deferred Savings Plan covers 126 participants in Illinois, about 16% of the average Illinois filer (state average ~779 per filing). Assets: $16M.

#10,616
in Manufacturing (18,722 peers)
+10.9%
assets growth YoY

Dudek & Bock 401(k) Tax Deferred Savings Plan's outsized position by total assets

Dudek & Bock 401(k) Tax Deferred Savings Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$15,655,989 Top 32% higher than 68% of 127,068 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 2023

Dudek & Bock 401(k) Tax Deferred Savings Plan among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Dudek & Bock 401(k) Tax Deferred Savings Plan sits mid-pack in the medium band (126 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Dudek & Bock 401(k) Tax Deferred Savings Plan reported net income rose from -$2M in the plan year 2022 filing to $2M in the plan year 2023 filing.
  • Dudek & Bock 401(k) Tax Deferred Savings Plan reported participants fell from 153 in the plan year 2022 filing to 126 in the plan year 2023 filing.
  • Dudek & Bock 401(k) Tax Deferred Savings Plan end-of-year assets rose from $14M in the plan year 2022 filing to $16M in the plan year 2023 filing.

See the national 2022→2023 release diff →

Form 5500 schedule snapshot

Filing strip 362151468 · Dudek & Bock Spring Mfg PY 2023 · 401(k)

Dudek & Bock 401(k) Tax Deferred Savings Plan · $16M · 126 · 68th

  • BOY $16M
  • BOY 126
  • BOY 68th
  • BOY 401(k)
  • BOY near US Med-Equip 401(k) Plan
  • BOY ind #10616

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 Illinois →

Dudek & Bock 401(k) Tax Deferred Savings Plan in the asset neighbourhood

Dudek & Bock 401(k) Tax Deferred Savings PlanDudek & Bock 401(k) Tax Defe…$16MUS Med-Equip 401(k) Plan$16MContinental Finance Company 401(k) PlanContinental Finance Company …$16MMassachusetts Container Corporation and Connecticut Container Corporation 401(k) PlanMassachusetts Container Corp…$16MBrightview, LLC 401(k) Plan$16M
End-of-year total assets ($M) among Dudek & Bock 401(k) Tax Deferred Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Illinois filing particulars

Total Assets (Beginning of Year)$14M
Net Assets (End of Year)$16M
Net Income$2M
Employer EIN362151468
Plan Effective Date1990-03-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Dudek & Bock Spring Mfg)

Sponsor-wide plan assets over time

All Dudek & Bock Spring Mfg plans reported in each filing year

Latest sponsor-wide plan assets
$17M 21.022616192229663% vs 2022
2024 filing year
$13M$14M$15M$16M$17M$18M 202220232024 $14.1M $17.1M ▲ +21.0%
Year Plans Participants Total Assets
2022 1 153 $14M
2023 1 126 $16M
2024 1 147 $17M

Nearby 401(k) Plans in Illinois

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

Dudek & Bock 401(k) Tax Deferred Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000 -505101520 Total assets ($B) Participants Dudek & Bock 401(k) Tax Deferred Savings Plan, Total assets ($B): 0.015655989 · Participants: 126Dudek & Bock 401(k) Tax Deferred Savings PlanAccenture United States 401(k) Match Savings Plan, Total assets ($B): 17.594548115 · Participants: 69974Accenture United States 401(k) Match Savings PlanState Farm 401(k) Savings Plan, Total assets ($B): 16.935002041 · Participants: 60246State Farm 401(k) Savings PlanAbbott Laboratories Stock Retirement Plan, Total assets ($B): 14.496191 · Participants: 38012Abbott Laboratories Stock Retirement PlanUnited Airlines Pilot Retirement Account Plan, Total assets ($B): 14.367975914 · Participants: 14959United Airlines Pilot Retirement Account PlanWalgreens Retirement Savings Plan, Total assets ($B): 13.444551767 · Participants: 235331Walgreens Retirement Savings Plan
Dudek & Bock 401(k) Tax Deferred Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants
Compare Dudek & Bock 401(k) Tax Deferred Savings Plan side-by-side with 3 peers →

Dudek & Bock 401(k) Tax Deferred Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is US Med-Equip 401(k) Plan in TX ($16M); by covered participants it is Land Clearing Specialist Inc 401(k) Profit Sharing Plan & Trust in PA (126 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (126 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Dudek & Bock 401(k) Tax Deferred Savings Plan assets move in 2023? ▼
Dudek & Bock 401(k) Tax Deferred Savings Plan grew at a solid clip - up 10.9% during 2023, from $14M to $16M. Reported net income was $2M.
How have Dudek & Bock Spring Mfg plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Dudek & Bock Spring Mfg's sponsor-wide assets grew 21.0%, from $14M to $17M.
Which 401(k) plans are similar in size to Dudek & Bock 401(k) Tax Deferred Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is US Med-Equip 401(k) Plan in TX ($16M, 700 participants).
Which 401(k) plans cover a similar participant headcount to Dudek & Bock 401(k) Tax Deferred Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Land Clearing Specialist Inc 401(k) Profit Sharing Plan & Trust in PA (126 participants, $4M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 362151468.

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.