CohnReznick 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 CohnReznick LLP audit?
CohnReznick LLP was the independent auditor for 703 retirement plan filings (728 audited filings including welfare plans) in plan year 2024, with clients in 35 states and territories — the #15 practice nationally by volume.
Practice at a glance
| Measure | Value |
|---|---|
| Firm EIN (as filed) | 33-4144829 |
| Retirement plan audits (401(k), 403(b), pension) | 703 |
| All audited filings (incl. welfare plans) | 728 |
| States and territories with clients | 35 |
| National rank by retirement plan volume | #15 of 3,956 |
| National rank, all audited filings (league-table basis) | #15 of 4,052 |
| Average client size (participants) | 1,862 |
| Largest client (participants) | 137,769 |
Rankings derived from U.S. Department of Labor Form 5500 filings, plan year 2024. Read the full methodology.
Where does CohnReznick LLP audit plans?
| State | Plans audited | Share of practice |
|---|---|---|
| Connecticut | 133 | 18.9% |
| New York | 115 | 16.4% |
| New Jersey | 110 | 15.6% |
| Massachusetts | 48 | 6.8% |
| Virginia | 46 | 6.5% |
| Maryland | 43 | 6.1% |
| California | 39 | 5.5% |
| Florida | 38 | 5.4% |
| Texas | 32 | 4.6% |
| Washington, D.C. | 24 | 3.4% |
| Illinois | 14 | 2.0% |
| Pennsylvania | 7 | 1.0% |
| Georgia | 6 | 0.9% |
| Minnesota | 5 | 0.7% |
| North Carolina | 5 | 0.7% |
| Missouri | 4 | 0.6% |
| Rhode Island | 3 | 0.4% |
| Washington | 3 | 0.4% |
| Delaware | 2 | 0.3% |
| Hawaii | 2 | 0.3% |
| Iowa | 2 | 0.3% |
| Michigan | 2 | 0.3% |
| New Hampshire | 2 | 0.3% |
| Nevada | 2 | 0.3% |
| Ohio | 2 | 0.3% |
| Oregon | 2 | 0.3% |
| Puerto Rico | 2 | 0.3% |
| West Virginia | 2 | 0.3% |
| Alabama | 1 | 0.1% |
| Colorado | 1 | 0.1% |
| Indiana | 1 | 0.1% |
| Kentucky | 1 | 0.1% |
| Oklahoma | 1 | 0.1% |
| South Carolina | 1 | 0.1% |
| Tennessee | 1 | 0.1% |
Largest concentration: Connecticut (133 plans). State reflects the plan sponsor’s address, not the firm’s office locations.
What audit opinions does CohnReznick LLP issue?
| Opinion type | Filings | Share |
|---|---|---|
| Unmodified (clean) | 683 | 97.2% |
| Qualified | 1 | 0.1% |
| Disclaimer | 19 | 2.7% |
| 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 CohnReznick LLP
| Plan sponsor | State | Participants |
|---|---|---|
| Marriott International, Inc. | MD | 137,769 |
| Automatic Data Processing, Inc. | NJ | 52,481 |
| The S2 HR Group, LLC | FL | 35,077 |
| Consolidated Edison Company of New York, Inc. | NY | 27,219 |
| Georgetown University | DC | 19,108 |
Comparing CohnReznick LLP with other 401(k) audit firms?
See alternatives to CohnReznick LLP for 401(k) audits: firms with comparable engagement volume and an overlapping state footprint, drawn from the same Form 5500 data.
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About this profile
This page is generated from public U.S. Department of Labor Form 5500 filings in which CohnReznick LLP (EIN 33-4144829) is named as the plan’s independent qualified public accountant. CohnReznick 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.