# ST. CLAIR ADVISORS, LLC

ST. CLAIR ADVISORS, LLC of MAYFIELD HEIGHTS, OH is an SEC-registered investment adviser.

## Registration

- CRD: 155064
- Type: SEC-registered investment adviser
- SEC file number: 801-71857
- Location: 5875 LANDERBROOK DRIVE, SUITE 240, MAYFIELD HEIGHTS, OH, 44124
- Phone: 440-925-5670
- Latest filing: 2026-03-23
- Regulatory AUM: $1.1B
- Discretionary AUM: $1.1B
- Clients: 12
- Accounts: 536

## Business model

- Compensation: % of AUM, Hourly, Fixed, Other
- Clients served: Individuals, High net worth, Charities, Other

## Officers, owners & control persons (12)

| Name | Role | Location |
| --- | --- | --- |
| David William Sommer | MEMBER, CEO, CIO AND CCO | — |
| Craig Andrew Steinbrink | MEMBER, COO | — |
| Ronald Edward Bates | MEMBER, CHAIRMAN EMERITUS | — |
| Fred G Botek | MEMBER | — |
| BURNS JOHN EDWIN | MEMBER | — |
| PERRY PHILIP VINCENT | MEMBER | — |
| SOMMER DAVID WILLIAM | MANAGING MEMBER/CHIEF COMPLIANCE OFFICER; MEMBER, CHIEF COMPLIANCE OFFICER; MEMBER, CHIEF EXECUTIVE OFFICER AND CHIEF COMPLIANCE OFFICER (+2 more) | — |
| KARNATZ JR WILLIAM EDWARD | MEMBER | — |
| BATES RONALD EDWARD | MEMBER, CHAIRMAN; MEMBER, CHAIRMAN EMERITUS; MEMBER, CHIEF EXECUTIVE OFFICER (+1 more) | — |
| MIHALIK MARK ANDREW | MEMBER | — |
| STEINBRINK CRAIG ANDREW | MEMBER; MEMBER, COO | — |
| BOTEK FRED G | MEMBER | — |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/155064/brochure
- Similar advisers: https://search.stillhousedata.com/firm/155064/similar
- Related entities: https://search.stillhousedata.com/firm/155064/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/155064

---

Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.