About FGMK, LLC
<p>Founded in 1969, FGMK, LLC is an audit firm headquartered in Bannockburn in Chicago’s North Shore suburbs, serving plan sponsors across the greater Chicago metro area.</p> <p>FGMK works as a retirement plan auditor, focusing on financial statement audits and related reporting for employer-sponsored retirement plans. The firm’s long operating history can be helpful for sponsors that want an established audit process and steady year-to-year support.</p> <p>Plan sponsors typically engage firms like FGMK when a plan reaches the employee-participant threshold that triggers an annual audit, or when they want an outside review of plan financial statements and disclosures.</p> <ul> <li>Retirement plan audit services from a long-established firm (founded 1969)</li> <li>Head office in Bannockburn, serving the Chicago–North Shore region</li> <li>Works with employer-sponsored retirement plans that require annual audits</li> <li>Category: <a href="/auditors/401k">401(k) auditors</a></li> </ul>
Website: https://www.fgmk.com
Founded: 1969
Office Locations
- Bannockburn, IL (Headquarters)
Accreditations & Certifications
- AICPA EBPAQC
- AICPA Member
Audit Statistics (2024)
- Total Plans Audited: 115
- Total AUM Audited: $10.5B
- 401(k): 115 plans, $10.5B 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 |
|---|---|---|---|
| ARTHUR J. GALLAGHER & CO. EMPLOYEES SAVINGS AND THRIFT PLAN | ARTHUR J. GALLAGHER (ILLINIOS), LLC., IL | $3.9B | 23,895 |
| HNI CORPORATION 401(K) PLAN | HNI CORPORATION, IA | $1.5B | 6,819 |
| IDEX CORPORATION SAVINGS PLAN | IDEX CORPORATION, IL | $962M | 4,213 |
| PAYLOCITY 401(K) PROFIT SHARING PLAN AND TRUST | PAYLOCITY CORPORATION, IL | $438M | 6,287 |
| WISS, JANNEY, ELSTNER ASSOCIATES, INC. 401(K) PLAN | WISS, JANNEY, ELSTNER ASSOCIATES, INC., IL | $406M | 860 |
| 401(k) Retirement Plan | Healthcare Sponsor, IL | $313M | 1,137 |
| 401(k) Retirement Plan | Manufacturing Sponsor, IL | $287M | 2,354 |
| 401(k) Retirement Plan | Professional Services Sponsor, IL | $286M | 837 |
| 401(k) Retirement Plan | Technology Sponsor, IL | $279M | 15,130 |
🔒 Want to unlock and download FGMK, LLC's client list?
Subscribe to Basic or Premium today to reveal and download all 116 client plans.
Subscribe Today