Wipfli LLP
Employee benefit plan audit practice profile, built from plan year 2024 Form 5500 filings.
Last updated · Source data: plan year 2024 Form 5500 filings
How many 401(k) plans does Wipfli LLP audit?
Wipfli LLP was the independent auditor for 58 retirement plan filings (66 audited filings including welfare plans) in plan year 2024, with clients in 18 states and territories — the #182 practice nationally by volume.
Practice at a glance
| Measure | Value |
|---|---|
| Firm EIN (as filed) | 41-2899048 |
| Retirement plan audits (401(k), 403(b), pension) | 58 |
| All audited filings (incl. welfare plans) | 66 |
| States and territories with clients | 18 |
| National rank by retirement plan volume | #182 of 3,956 |
| National rank, all audited filings (league-table basis) | #175 of 4,052 |
| Average client size (participants) | 1,224 |
| Largest client (participants) | 8,985 |
Rankings derived from U.S. Department of Labor Form 5500 filings, plan year 2024. Read the full methodology.
Where does Wipfli LLP audit plans?
| State | Plans audited | Share of practice |
|---|---|---|
| Wisconsin | 26 | 44.8% |
| Maine | 5 | 8.6% |
| Illinois | 4 | 6.9% |
| California | 3 | 5.2% |
| Pennsylvania | 3 | 5.2% |
| Idaho | 2 | 3.4% |
| Minnesota | 2 | 3.4% |
| Oregon | 2 | 3.4% |
| Colorado | 1 | 1.7% |
| Florida | 1 | 1.7% |
| Kansas | 1 | 1.7% |
| Kentucky | 1 | 1.7% |
| Michigan | 1 | 1.7% |
| Missouri | 1 | 1.7% |
| Montana | 1 | 1.7% |
| New York | 1 | 1.7% |
| South Dakota | 1 | 1.7% |
| Texas | 1 | 1.7% |
Largest concentration: Wisconsin (26 plans). State reflects the plan sponsor’s address, not the firm’s office locations.
What audit opinions does Wipfli LLP issue?
| Opinion type | Filings | Share |
|---|---|---|
| Unmodified (clean) | 58 | 100.0% |
| Qualified | 0 | 0.0% |
| Disclaimer | 0 | 0.0% |
| Adverse | 0 | 0.0% |
As coded on Schedule H. A disclaimer here usually reflects the legacy limited-scope reporting convention (now the ERISA Section 103(a)(3)(C) election), not a failed audit — see the methodology.
Largest plans audited by Wipfli LLP
| Plan sponsor | State | Participants |
|---|---|---|
| Battelle Energy Alliance, LLC and Idaho Environmental Coalition, LLC | ID | 8,985 |
| Schreiber Foods, Inc. | WI | 7,993 |
| Battelle Energy Alliance, LLC | ID | 7,462 |
| Schreiber Foods, Inc | WI | 7,273 |
| Bellin Health Systems, Inc. | WI | 7,166 |
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About this profile
This page is generated from public U.S. Department of Labor Form 5500 filings in which Wipfli LLP (EIN 41-2899048) is named as the plan’s independent qualified public accountant. Wipfli LLP did not supply, review, or endorse this information, and inclusion is not a recommendation. Filing data can contain sponsor-entered errors; corrections are welcome via the about page.