At a glance
- Co-founders Jeff Cox and Dennis Olis lead the firm, which lists 15 partners and 60 strategic advisors, Private Equity Professional reported on Oct. 21.
- Clients can engage it for a day, a month or longer, with its people serving as senior advisors, board directors, interim and fractional executives, coaches, expert witnesses and due diligence providers.
- For family offices making direct investments, the pitch is operating and diligence capacity bought by the engagement rather than carried inside a fund's value-creation team.
Birmingham Advisors, a Chicago firm of former chief executives, CFOs and founders, launched on Oct. 21 to advise private equity sponsors, family office direct investors and founder- and family-led businesses.
Co-founders Jeff Cox and Dennis Olis lead the firm, which lists 15 partners and 60 strategic advisors, Private Equity Professional reported on Oct. 21.
Clients can engage it for a day, a month or longer, with its people serving as senior advisors, board directors, interim and fractional executives, coaches, expert witnesses and due diligence providers.
For family offices making direct investments, the pitch is operating and diligence capacity bought by the engagement rather than carried inside a fund's value-creation team. The firm says the work spans preparing companies for sale, putting AI tools to work, competitive and talent reviews, process improvement, and financial close and controls. It also says its team has worked on more than 2,500 corporate M&A transactions across 10 industries, a figure that covers the collective careers of its advisors rather than work done under the Birmingham name.
| Item | Detail |
|---|---|
| Firm | Birmingham Advisors, Chicago |
| Launched | Oct. 21, 2026 |
| Co-founders | Jeff Cox, Dennis Olis |
| Headcount | 15 partners, 60 strategic advisors |
| Engagement length | A day, a month or longer |
Reported by the Private Equity desk from Private Equity Professional. Published . Updated Oct 25, 2026 · 11:43 a.m. ET. Corrections