401(k) · DOL Form 5500 · 2023

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) 401(k) Plan

Data updated 2026-08-25

$55M
Total assets Below avg plan size
470
Participants Below avg headcount
86th
Percentile by assets National rank
$117,289
Avg per participant Below avg balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan · Sponsored by Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) · Iowa · Construction

$55M in assets, 470 participants

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k)'s Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan reported $55M in total assets and 470 participants in its 2023 DOL Form 5500 filing, ranking in the 86th 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.

  • #7,615 in Construction (9,030 peers)

Where Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan sits by assets

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan sits in the top quartile of all filed plans by assets, $55M for 470 participants (~$117,289/participant), up 21.4% in 2023.

#7,615
in Construction (9,030 peers)
+21.4%
assets growth YoY
0.6×
vs typical plan assets (national mean)

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan's outsized position by total assets

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan vs every filed plan by assets

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

$55,125,888 Top 14% higher than 86% 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

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) 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. Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan sits mid-pack in the medium band (470 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan reported net income rose from -$10M in the plan year 2022 filing to $10M in the plan year 2023 filing.
  • Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan end-of-year assets rose from $45M in the plan year 2022 filing to $55M in the plan year 2023 filing.
  • Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan reported participants rose from 447 in the plan year 2022 filing to 470 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Published 5500 schedule card

Filing strip 421401231 · Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) PY 2023 · 401(k)

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan · $55M · 470 · 86th

  • BOOK $55M
  • BOOK 470
  • BOOK 86th
  • BOOK 401(k)
  • BOOK near Megger Savings Plan
  • BOOK ind #7615

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 Construction retirement plans → · Plans in Iowa →

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan in the asset neighbourhood

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) PlanCentral Iowa Sheet Metal Wor…$55MMegger Savings Plan$55MRodan & Fields, LLC 401(k) PlanRodan & Fields, LLC 401(k) P…$55MRecon 401(k) Plan$55MNoven Pharmaceuticals, Inc. 401(k) PlanNoven Pharmaceuticals, Inc. …$55M
End-of-year total assets ($M) among Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$45M
Net Assets (End of Year)$55M
Net Income$10M
Employer EIN421401231
Plan Effective Date1993-04-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Central Iowa Sheet Metal Workers Supplemental Retirement 401(k))

Sponsor-wide plan assets over time

All Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) plans reported in each filing year

Latest sponsor-wide plan assets
$62M 36.16089799259955% vs 2022
2024 filing year
$40M$45M$50M$55M$60M$65M 202220232024 $45.4M $61.8M ▲ +36.2%
Year Plans Participants Total Assets
2022 1 447 $45M
2023 1 470 $55M
2024 1 486 $62M

Nearby 401(k) Plans in Iowa

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

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan vs. nearby 401(k) plans in Iowa, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -1012345 Total assets ($B) Participants Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan, Total assets ($B): 0.055125888 · Participants: 470Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) PlanThe Principal Select Savings Plan, Total assets ($B): 4.134174305 · Participants: 12827The Principal Select Savings PlanIowa Health System Section 401(k) Retirement Savings Plan, Total assets ($B): 2.955731563 · Participants: 28959Iowa Health System Section 401(k) Retirement Savings PlanThe Hy-Vee and Affiliates 401(k) Plan, Total assets ($B): 2.941182172 · Participants: 56181The Hy-Vee and Affiliates 401(k) PlanThe Rsm US LLP Retirement Plan, Total assets ($B): 2.890404508 · Participants: 14720The Rsm US LLP Retirement PlanTransamerica 401(k) Retirement Savings Plan, Total assets ($B): 2.425600114 · Participants: 6999Transamerica 401(k) Retirement Savings Plan
Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan vs. nearby 401(k) plans in Iowa, assets vs. participants

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Iowa, the nearest 401(k) by assets is Megger Savings Plan in TX ($55M); by covered participants it is Rallye Motor Company 401(k) Plan in NY (470 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($55M here).

Similar participant headcount

Nearest other-state filings by covered participants (470 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 Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan assets move in 2023?
Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan grew sharply - up 21.4% during 2023, from $45M to $55M. Reported net income was $10M.
How have Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) plan assets changed over time?
Across 3 plan years on file (2022-2024), Central Iowa Sheet Metal Workers Supplemental Retirement 401(k)'s sponsor-wide assets grew 36.2%, from $45M to $62M.
Where does Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan rank by assets among Form 5500 filers?
Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan ranks in the 86th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan?
Among 401(k) plans in other states, the closest by assets is Megger Savings Plan in TX ($55M, 383 participants).
Which 401(k) plans cover a similar participant headcount to Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan?
Among 401(k) plans in other states, the closest by covered participants is Rallye Motor Company 401(k) Plan in NY (470 participants, $60M in assets).