Employer · plans filed under one EIN
Oldenburg Group Incorporated
Glendale, WI · Manufacturing
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances.
Oldenburg Group Incorporated, based in Glendale, Wisconsin, sponsors 2 retirement plans with 100 or more participants: 1 defined contribution and 1 defined benefit. Together they reported 369 participant records and $24.1M in net assets.
The largest is Oldenburg Group Incorporated Savings Plan, a 401(k) plan with 206 participants. A person can be counted in more than one plan, so the participant total is a count of records rather than of people.
Employer contributions across the plans were $162K and participant contributions $465K in the latest plan years; benefits paid were $2.5M. Schedule C compensation reported to service provider organisations totalled $52K.
Combined net assets moved from $24.7M in 2009 to $21.0M in 2025 (down 15%). Plan mergers and spin-offs show up here as steps in the series.
Plans
| Plan | Kind | Plan year | Participants | Net assets | Per participant | Employer / active | Sch. C compensation |
|---|---|---|---|---|---|---|---|
| Oldenburg Group Incorporated Savings Plan | 401(k) plan | 2025 | 206 | $21.0M | $102,123 | $1,721 | $19K |
| Lake Shore, Inc. Steelworkers Pension Plan | defined benefit pension plan | 2024 | 163 | $3.0M | $18,521 | — | $33K |
| US median, plan year 2024: DC plans $53,089 per participant, $2,174 employer contribution per active participant; DB plans $86,073 and $10,170. | |||||||
Trend by plan year
| Plan year | Plans | Participant records | Net assets | Employer contributions | Participant contributions |
|---|---|---|---|---|---|
| 2025 | 1 | 206 | $21.0M | $162K | $465K |
| 2024 | 2 | 360 | $22.5M | $146K | $426K |
| 2023 | 2 | 373 | $23.8M | $223K | $401K |
| 2022 | 2 | 412 | $22.9M | $254K | $390K |
| 2021 | 2 | 430 | $30.6M | $117K | $714K |
| 2020 | 2 | 445 | $30.0M | $462K | $416K |
| 2019 | 2 | 486 | $27.2M | $538K | $511K |
| 2018 | 2 | 516 | $23.3M | $384K | $529K |
| 2017 | 2 | 559 | $27.2M | $453K | $574K |
| 2016 | 2 | 617 | $26.2M | $811K | $1.4M |
| 2015 | 2 | 833 | $35.4M | $660K | $1.6M |
| 2014 | 2 | 865 | $36.9M | $591K | $1.5M |
| 2013 | 2 | 814 | $36.1M | $624K | $1.5M |
| 2012 | 2 | 874 | $31.8M | $667K | $1.7M |
| 2011 | 2 | 888 | $27.5M | $866K | $1.7M |
| 2010 | 2 | 873 | $27.7M | $685K | $1.6M |
| 2009 | 2 | 894 | $24.7M | $865K | $1.6M |
History of the plans listed above, in the years each filed the full Form 5500 with 100 or more participants. Plans that have since terminated are not included.
Service providers
| Organisation | Services reported | Plans | Compensation reported |
|---|---|---|---|
| CliftonLarsonAllen LLP | Accounting (including auditing); Claims processing | 2 | $21,683 |
| Egps, LLC | Actuarial; Recordkeeping and information management | 1 | $13,800 |
| US Bank | Accounting (including auditing) | 1 | $9,343 |
| Oneamerica Retirement Services LLC | Recordkeeping and information management; Copying and duplicating; Participant loan processing; Participant communication | 1 | $6,725 |
| Matrix Trust Company | Custodial (securities); Trustee (bank, trust company, or similar financial institution); Trustee (directed) | 1 | $0 |
Organisations paid $5,000 or more by any of these plans, from Schedule C. Individuals are not shown.
Questions and answers
How many retirement plans does Oldenburg Group Incorporated have?
2 plans with 100 or more participants filed Form 5500 under its employer identification number for the latest plan years: Oldenburg Group Incorporated Savings Plan and Lake Shore, Inc. Steelworkers Pension Plan. Smaller plans and plans filed under a subsidiary's number are not grouped here.
How much does Oldenburg Group Incorporated contribute to its plans?
$161,733 in employer contributions across these plans in their latest plan years, about $1,721 per active participant record. Form 5500 reports totals and not the match or accrual formula.
Who provides services to these plans?
Schedule C filings name CliftonLarsonAllen LLP, Egps, LLC, US Bank and Oneamerica Retirement Services LLC and others. Only organisations paid $5,000 or more by a plan are listed on Schedule C.
Where does this come from?
Form 5500 annual reports filed with the Department of Labor's EFAST2 system, from the EBSA research files, with filings received through 24 Sep 2026. Figures are as filed and may be amended.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files, public domain, with filings received through 24 Sep 2026. Plans are grouped by the sponsor's employer identification number exactly as filed; a company that files under several EINs appears as several employers. See the methodology and corrections.