401(k) · DOL Form 5500 · 2023

Mayville Engineering Company, Inc 401(k) Plan

Data updated 2026-08-25

$150M
Total assets Near avg plan size
2,531
Participants Above avg headcount
94th
Percentile by assets National rank
$59,108
Avg per participant Low balance/head
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Official DOL plan name: Mayville Engineering Company, Inc. 401(k) Plan · Sponsored by Mayville Engineering Company, Inc · Wisconsin · Manufacturing

$150M in assets, 2,531 participants

Mayville Engineering Company, Inc's Mayville Engineering Company, Inc. 401(k) Plan reported $150M in total assets and 2,531 participants in its 2023 DOL Form 5500 filing, ranking in the 94th 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.

  • #16,867 in Manufacturing (18,722 peers)

Coverage in Wisconsin

Mayville Engineering Company, Inc. 401(k) Plan covers 2,531 participants in Wisconsin, 4.5x the typical Wisconsin plan (state average ~563 per filing). Assets: $150M.

#16,867
in Manufacturing (18,722 peers)
+27.3%
assets growth YoY
1.5×
vs typical plan assets (national mean)

Mayville Engineering Company, Inc. 401(k) Plan's outsized position by total assets

Mayville Engineering Company, Inc. 401(k) Plan vs every filed plan by assets

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

$149,601,324 Top 6% higher than 94% 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

Mayville Engineering Company, Inc. 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mayville Engineering Company, Inc. 401(k) Plan lands in the large band (2,531 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Mayville Engineering Company, Inc. 401(k) Plan reported net income rose from -$19M in the plan year 2022 filing to $30M in the plan year 2023 filing.
  • Mayville Engineering Company, Inc. 401(k) Plan end-of-year assets rose from $118M in the plan year 2022 filing to $150M in the plan year 2023 filing.
  • Mayville Engineering Company, Inc. 401(k) Plan reported participants rose from 2,184 in the plan year 2022 filing to 2,531 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 390944729 · Mayville Engineering Company, Inc PY 2023 · 401(k)

Mayville Engineering Company, Inc. 401(k) Plan · $150M · 2,531 · 94th

  • TYPE $150M
  • TYPE 2,531
  • TYPE 94th
  • TYPE 401(k)
  • TYPE near Moss & Associates, LLC 401(k) Profit Sharing Plan
  • TYPE ind #16867

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 Wisconsin →

Mayville Engineering Company, Inc. 401(k) Plan in the asset neighbourhood

United Wholesale Mortgage, LLC Profit Sharing Plan and TrustUnited Wholesale Mortgage, L…$150MMoss & Associates, LLC 401(k) Profit Sharing PlanMoss & Associates, LLC 401(k…$150MMayville Engineering Company, Inc. 401(k) PlanMayville Engineering Company…$150MPopular, Inc. USA 401(k) Savings & Investment PlanPopular, Inc. USA 401(k) Sav…$150MClarion Partners, LLC 401(k) Profit Sharing PlanClarion Partners, LLC 401(k)…$149M
End-of-year total assets ($M) among Mayville Engineering Company, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Wisconsin filing particulars

Total Assets (Beginning of Year)$118M
Net Assets (End of Year)$150M
Net Income$30M
Employer EIN390944729
Plan Effective Date1990-06-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mayville Engineering Company, Inc)

Sponsor-wide plan assets over time

All Mayville Engineering Company, Inc plans reported in each filing year

Latest sponsor-wide plan assets
$211M 11.16642580327986% vs 2022
2024 filing year
$180M$190M$200M$210M$220M 202220232024 $190M $211M ▲ +11.2%
Year Plans Participants Total Assets
2022 2 4,063 $190M
2023 2 4,462 $208M
2024 2 4,659 $211M

Nearby 401(k) Plans in Wisconsin

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

Mayville Engineering Company, Inc. 401(k) Plan vs. nearby 401(k) plans in Wisconsin, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000100000 -20246810 Total assets ($B) Participants Mayville Engineering Company, Inc. 401(k) Plan, Total assets ($B): 0.149601324 · Participants: 2531Mayville Engineering Company, Inc. 401(k) PlanAdvocate Aurora Health 401(k) Plan, Total assets ($B): 9.125723544 · Participants: 76956Advocate Aurora Health 401(k) PlanJohnson Controls Retirement Savings and Investment Plan, Total assets ($B): 6.160116767 · Participants: 28904Johnson Controls Retirement Savings and Investment PlanFiserv 401(k) Savings Plan, Total assets ($B): 4.81171463 · Participants: 25280Fiserv 401(k) Savings PlanKimberly-Clark Corporation 401(k) & Profit Sharing Plan, Total assets ($B): 4.550761 · Participants: 11236Kimberly-Clark Corporation 401(k) & Profit Sharing PlanRockwell Automation Retirement Savings Plan, Total assets ($B): 3.62235882 · Participants: 8877Rockwell Automation Retirement Savings Plan
Mayville Engineering Company, Inc. 401(k) Plan vs. nearby 401(k) plans in Wisconsin, assets vs. participants
Compare Mayville Engineering Company, Inc. 401(k) Plan side-by-side with 3 peers →

Mayville Engineering Company, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Wisconsin, the nearest 401(k) by assets is Moss & Associates, LLC 401(k) Profit Sharing Plan in FL ($150M); by covered participants it is Clark Group Retirement Plan in MD (2,531 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (2,531 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 Mayville Engineering Company, Inc. 401(k) Plan assets move in 2023? ▼
Mayville Engineering Company, Inc. 401(k) Plan grew sharply - up 27.3% during 2023, from $118M to $150M. Reported net income was $30M.
How have Mayville Engineering Company, Inc plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mayville Engineering Company, Inc's sponsor-wide assets grew 11.2%, from $190M to $211M.
Where does Mayville Engineering Company, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
Mayville Engineering Company, Inc. 401(k) Plan ranks in the 94th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Mayville Engineering Company, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Moss & Associates, LLC 401(k) Profit Sharing Plan in FL ($150M, 1,286 participants).
Which 401(k) plans cover a similar participant headcount to Mayville Engineering Company, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Clark Group Retirement Plan in MD (2,531 participants, $902M 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 390944729.

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.