Primary Role
Managing Partner at Kortschak Investments, L.P.
7 Investments in 7 Companies

Person Details


Walter Kortschak is a venture capital and private equity investor with 27 years of experience funding emerging growth companies. Walter started his career as a software engineer then worked in product marketing before becoming a venture capitalist. After 21 years helping to build Summit Partners into a leading private equity and venture capital firm as a managing partner, Walter stepped down from day-to-day operations at Summit in 2010 and now serves as a Senior Advisor and board member. With nearly $15 billion under management and over 140 employees, Summit has offices in Boston, Palo Alto, London, and Mumbai and has raised 16 funds since its founding. Prior to Summit, he was a Vice President and Associate at Crosspoint Venture Partners.

Over his venture capital career, Walter has served as a director of over 50 companies, including 20 public companies. Highlights of his career include backing McAfee as a 3-person start-up in 1991, which went public and was then sold in 2010 to Intel for $7.7 billion and investing in E-TEK Dynamics, a pioneer in optical networking in 1997, which grew to over $1 billion in revenue and was sold for $19 billion to JDS Uniphase. While at Summit for 20 years, Walter was responsible for investing over $750 million in 36 companies, which returned over $5 billion in value, for an internal rate of return (IRR) of over 80%. He has consistently appeared on Forbes Magazine’s Midas List of top 100 venture capitalists.

Walter received a B.S. from Oregon State University in 1981, an M.S. from Caltech in 1982, both in engineering, and an M.B.A. from the University of California, Los Angeles in 1986. He is a member of the Board of Trustees at Caltech. He is also a past director of the National Venture Capital Association.

He and his wife, Marcia now devote their time to philanthropy with a principal focus on educational endeavors. The Kortschak family has endowed the USC Kortschak Center for Learning and Creativity and endowed the Division Chair in Film and Television Production at the USC School of Cinematic Arts.

Experience (6)


Advisory Roles (3)


Education (3)


Investments (7)