Miller Cooper & Co., LTD
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 Miller Cooper & Co., LTD audit?
Miller Cooper & Co., LTD was the independent auditor for 156 retirement plan filings (157 audited filings including welfare plans) in plan year 2024, with clients in 12 states and territories — the #72 practice nationally by volume.
Practice at a glance
| Measure | Value |
|---|---|
| Firm EIN (as filed) | 36-2897372 |
| Retirement plan audits (401(k), 403(b), pension) | 156 |
| All audited filings (incl. welfare plans) | 157 |
| States and territories with clients | 12 |
| National rank by retirement plan volume | #72 of 3,956 |
| National rank, all audited filings (league-table basis) | #73 of 4,052 |
| Average client size (participants) | 765 |
| Largest client (participants) | 11,160 |
Rankings derived from U.S. Department of Labor Form 5500 filings, plan year 2024. Read the full methodology.
Where does Miller Cooper & Co., LTD audit plans?
| State | Plans audited | Share of practice |
|---|---|---|
| Illinois | 124 | 79.5% |
| California | 5 | 3.2% |
| Indiana | 5 | 3.2% |
| New York | 5 | 3.2% |
| Florida | 4 | 2.6% |
| Texas | 4 | 2.6% |
| Wisconsin | 3 | 1.9% |
| Michigan | 2 | 1.3% |
| Arizona | 1 | 0.6% |
| Minnesota | 1 | 0.6% |
| New Jersey | 1 | 0.6% |
| West Virginia | 1 | 0.6% |
Largest concentration: Illinois (124 plans). State reflects the plan sponsor’s address, not the firm’s office locations.
What audit opinions does Miller Cooper & Co., LTD issue?
| Opinion type | Filings | Share |
|---|---|---|
| Unmodified (clean) | 155 | 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 Miller Cooper & Co., LTD
| Plan sponsor | State | Participants |
|---|---|---|
| Transdev North America, Inc. | IL | 11,160 |
| Follett Higher Education Group, LLC | IL | 7,784 |
| United Call Center Solutions, LLC | TX | 6,716 |
| Huron Consulting Group Inc. | IL | 6,493 |
| Transworld Systems Inc. | IL | 6,195 |
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About this profile
This page is generated from public U.S. Department of Labor Form 5500 filings in which Miller Cooper & Co., LTD (EIN 36-2897372) is named as the plan’s independent qualified public accountant. Miller Cooper & Co., LTD 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.