Mansperger Patterson & McMullin PLC
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 Mansperger Patterson & McMullin PLC audit?
Mansperger Patterson & McMullin PLC was the independent auditor for 79 retirement plan filings in plan year 2024, with clients in 11 states and territories — the #141 practice nationally by volume.
Practice at a glance
| Measure | Value |
|---|---|
| Firm EIN (as filed) | 86-0751928 |
| Retirement plan audits (401(k), 403(b), pension) | 79 |
| All audited filings (incl. welfare plans) | 79 |
| States and territories with clients | 11 |
| National rank by retirement plan volume | #141 of 3,956 |
| National rank, all audited filings (league-table basis) | #147 of 4,052 |
| Average client size (participants) | 553 |
| Largest client (participants) | 3,184 |
Rankings derived from U.S. Department of Labor Form 5500 filings, plan year 2024. Read the full methodology.
Where does Mansperger Patterson & McMullin PLC audit plans?
| State | Plans audited | Share of practice |
|---|---|---|
| Arizona | 61 | 77.2% |
| California | 5 | 6.3% |
| Michigan | 2 | 2.5% |
| Nevada | 2 | 2.5% |
| Texas | 2 | 2.5% |
| Washington | 2 | 2.5% |
| Colorado | 1 | 1.3% |
| Florida | 1 | 1.3% |
| Missouri | 1 | 1.3% |
| New Jersey | 1 | 1.3% |
| New York | 1 | 1.3% |
Largest concentration: Arizona (61 plans). State reflects the plan sponsor’s address, not the firm’s office locations.
What audit opinions does Mansperger Patterson & McMullin PLC issue?
| Opinion type | Filings | Share |
|---|---|---|
| Unmodified (clean) | 68 | 87.2% |
| Qualified | 3 | 3.8% |
| Disclaimer | 7 | 9.0% |
| 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 Mansperger Patterson & McMullin PLC
| Plan sponsor | State | Participants |
|---|---|---|
| Mayco International LLC | MI | 3,184 |
| Progress Residential | AZ | 2,994 |
| DBM Global Inc. | AZ | 2,965 |
| CPS, Inc. | AZ | 2,387 |
| Suntec Concrete, Inc. | AZ | 1,824 |
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About this profile
This page is generated from public U.S. Department of Labor Form 5500 filings in which Mansperger Patterson & McMullin PLC (EIN 86-0751928) is named as the plan’s independent qualified public accountant. Mansperger Patterson & McMullin PLC 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.