Mark is a founding partner of Three Arch Partners. Prior to cofounding Three Arch Partners, Mark was a general partner at Brentwood Associates. Since starting in venture capital in 1987, Mark has emphasized working with entrepreneurs in very early stage companies. He has often assumed temporary operating responsibility, managing key functions during a company’s young life. He has served on the boards of many private and public medical companies including Biopsys Medical, Odyssey Healthcare and Perclose. Mark holds a B.S. in Engineering and a B.A. in Economics from Yale University. He also holds an M.B.A. from the Stanford Graduate School of Business.