About Reilly, Penner & Benton LLP
<p>Founded in 1907, Reilly, Penner & Benton LLP is the oldest registered CPA firm in Wisconsin. From its Milwaukee office, the firm works with nonprofits and businesses across the Milwaukee metro and throughout southeastern and south-central Wisconsin.</p> <p>RPB provides public accounting services with a focus on audit and attestation work, along with tax preparation, tax planning, consulting, and financial reviews. Organizations use the firm for help with financial statements, compliance-related reporting, and year-round tax work.</p> <p>One clear differentiator is longevity: as Wisconsin’s oldest registered CPA firm, RPB brings more than a century of continuity and institutional knowledge to client relationships.</p> <p>For retirement plan-related needs, employers looking for <a href="/auditors/401k">401(k) auditors</a> can contact Patrick Hoffert at (414) 271-7800 or visit <a href="http://www.rpb.biz" target="_blank" rel="noopener">www.rpb.biz</a>.</p> <ul> <li>Established: 1907</li> <li>Location: Milwaukee, Wisconsin</li> <li>Service area: southeastern and south-central Wisconsin</li> <li>Services: audit, attestation, tax preparation and planning, consulting, financial reviews</li> </ul>
Website: https://www.www.rpb.biz
Founded: 1907
Office Locations
- Milwaukee, WI
Accreditations & Certifications
- AICPA EBPAQC
- AICPA Member
Audit Statistics (2024)
- Total Plans Audited: 67
- Total AUM Audited: $4.2B
- 401(k): 67 plans, $4.2B AUM
Plans Serviced (2025)
Largest plans where this firm is listed as a service provider (Schedule C) or IQPA (Schedule H) on the most recent filings (From Form 5500).
| Plan | Sponsor | Assets | Participants |
|---|---|---|---|
| ELECTRICAL CONSTRUCTION INDUSTRY PENSION PLAN | ELECTRICAL CONSTRUCTION INDUSTRY PENSION PLAN BOARD OF TRUSTEES, WI | $651M | 2,376 |
| A O SMITH RETIREMENT SECURITY PLAN | A O SMITH CORPORATION, WI | $618M | 4,854 |
| ALLETE AND AFFILIATED COMPANIES RETIREMENT SAVINGS AND STOCK OWNERSHIP PLAN | ALLETE, INC., MN | $606M | 1,633 |
| RITE-HITE RETIREMENT SAVINGS PLAN | RITE-HITE HOLDING CORPORATION, WI | $494M | 2,381 |
| ALLETE & AFFILIATED COMPANIES RETIREMENT PLAN C | ALLETE, INC. & AFFILIATED COMPANIES, MN | $422M | 143 |
| 401(k) Retirement Plan | Healthcare Sponsor, WI | $403M | 3,812 |
| 401(k) Retirement Plan | Manufacturing Sponsor, KS | $348M | 3,647 |
| 401(k) Retirement Plan | Professional Services Sponsor, MN | $188M | 276 |
| 401(k) Retirement Plan | Technology Sponsor, WI | $128M | 726 |
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