Top retirement plan auditors
3,629plans audited by Baker Tilly US, LLP
73,614 retirement plans name an independent auditor. Baker Tilly US, LLP audits the most, 3,629. The big national firms audit fewer plans but larger ones: compare plan counts with assets.
Data as of 2026-11-08. Source: U.S. Department of Labor Form 5500.
| # | Audit firm | Plans | Plan assets |
|---|---|---|---|
| 1 | Baker Tilly US, LLP | 3,629 | $928.2B |
| 2 | Cliftonlarsonallen LLP | 2,880 | $402.6B |
| 3 | Forvis Mazars, LLP | 2,551 | $439.1B |
| 4 | Cbiz CPAS P.C. | 1,536 | $279.4B |
| 5 | BDO USA, P.C. | 1,314 | $524.5B |
| 6 | Eide Bailly LLP | 1,185 | $116.5B |
| 7 | Caron & Bletzer, PLLC | 1,108 | $104.6B |
| 8 | Plante & Moran, PLLC | 951 | $137.7B |
| 9 | Pension Assurance LLP | 946 | $40.5B |
| 10 | Crowe LLP | 922 | $502.6B |
| 11 | RSM US LLP | 894 | $160.2B |
| 12 | Wipfli LLP | 811 | $84.3B |
| 13 | Grant Thornton LLP | 803 | $474.1B |
| 14 | Cohnreznick LLP | 732 | $161.5B |
| 15 | LBMC, PC | 546 | $99.5B |
| 16 | Cherry Bekaert LLP | 535 | $53.0B |
| 17 | PKF O'Connor Davies, LLP | 526 | $55.0B |
| 18 | Eisneramper LLP | 523 | $89.2B |
| 19 | Sikich CPA LLC | 517 | $36.5B |
| 20 | Withumsmith+brown, PC | 513 | $326.8B |
| 21 | Doeren Mayhew Assurance, PC | 490 | $27.1B |
| 22 | Uhy LLP | 481 | $31.4B |
| 23 | Aprio LLP | 476 | $22.8B |
| 24 | Ernst & Young LLP | 476 | $1.07T |
| 25 | Armanino LLP | 464 | $62.5B |
How we counted
- Auditor named on the plan's Schedule H. Plans with 100+ participants generally need an audit. Firm names merged across spelling variants (LLP, P.C. and the like).
- Source: PlanOptica analysis of U.S. Department of Labor Form 5500 filings, newest filing of each active plan (plan years 2024 and 2025). Data as of 2026-11-08.
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