Boswell Schultz Sonnenberg & Arnett
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 Boswell Schultz Sonnenberg & Arnett audit?
Boswell Schultz Sonnenberg & Arnett was the independent auditor for 4 retirement plan filings in plan year 2024, with clients in 1 state — the #1,447 practice nationally by volume.
Practice at a glance
| Measure | Value |
|---|---|
| Firm EIN (as filed) | 57-1225176 |
| Retirement plan audits (401(k), 403(b), pension) | 4 |
| All audited filings (incl. welfare plans) | 4 |
| States and territories with clients | 1 |
| National rank by retirement plan volume | #1,447 of 3,956 |
| National rank, all audited filings (league-table basis) | #1,594 of 4,052 |
| Average client size (participants) | 304 |
| Largest client (participants) | 343 |
Rankings derived from U.S. Department of Labor Form 5500 filings, plan year 2024. Read the full methodology.
Where does Boswell Schultz Sonnenberg & Arnett audit plans?
| State | Plans audited | Share of practice |
|---|---|---|
| Michigan | 4 | 100.0% |
Largest concentration: Michigan (4 plans). State reflects the plan sponsor’s address, not the firm’s office locations.
What audit opinions does Boswell Schultz Sonnenberg & Arnett issue?
| Opinion type | Filings | Share |
|---|---|---|
| Unmodified (clean) | 4 | 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 Boswell Schultz Sonnenberg & Arnett
| Plan sponsor | State | Participants |
|---|---|---|
| Folk Oil Company, Inc. | MI | 343 |
| Commonwealth Associates Inc. | MI | 321 |
| Technique, Inc. | MI | 320 |
| Linn Products, Inc. | MI | 234 |
About this profile
This page is generated from public U.S. Department of Labor Form 5500 filings in which Boswell Schultz Sonnenberg & Arnett (EIN 57-1225176) is named as the plan’s independent qualified public accountant. Boswell Schultz Sonnenberg & Arnett 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.