Dennis Leary co-founded Proof School, and serves as Proof School's treasurer. 

He is a Managing Partner and founder of Champlain Capital, a private equity firm in San Francisco. Dennis has been in the private equity industry for 20 years investing in over 60 businesses through five funds with collective capital of over $1 billion. He is highly experienced at raising capital, growing companies using an operational approach, and has served on 30 boards. He is also a Chartered Financial Analyst.

Dennis is the parent of a math kid who takes part in Paul Zeitz’s invitational math circle.

M.B.A., Cornell University; B.S., Rensselaer Polytechnic Institute