Billionaire Profile
W
Global Rank
#2228

Image: Flora Macdonald College | Public domain | via Wikimedia Commons

Walter Kortschak

CEO, Venture capital
UNITED STATES
Real-Time Net Worth
$1.798B
Estimated based on Venture capital stock value as of March 6, 2026
0% (24h)
Age
66
Source
Venture capital
Industry
Finance & Investments
Citizenship
UNITED STATES

Biography

Walter Kortschak is a 66-year-old American investor with a long and successful career in venture capital and private equity. He is known for his early investments in technology companies. Kortschak's wealth stems from his expertise in venture capital and his strategic investments over 40 years. He is also a philanthropist, supporting educational initiatives. His career has included active roles at Summit Partners and later as a private investor, with a current net worth estimated at $1.7 billion.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life and Education

Born in Canada to an Austrian father and an American mother, Walter Kortschak spent his childhood in Geneva, Switzerland, where his father worked for DuPont. He initially pursued a career in software engineering, earning a bachelor's degree from Oregon State University and a master's degree from Caltech. He later earned an MBA from UCLA.

Rise to Success

Kortschak's career began in 1982 at a computer graphics startup, which later became MSC Software. In 1985, he became a Venture Fellow at UCLA and interned at Crosspoint Venture Partners. He joined Crosspoint full-time in 1986, starting his journey into venture capital. In 1989, he joined Summit Partners, where he spent 26 years and played a key role in the company's growth. Kortschak was responsible for investing over $1.2 billion in 50 companies, returning over $7.6 billion in value. He was named to the Forbes Midas List from 2007 to 2010.

Key Business Strategies

Kortschak's investment strategy focuses on duration and persistence, and selecting outlier founders. He is known for investing in early-stage technology ventures. He has made investments in companies such as The Trade Desk, Lyft, Palantir, Robinhood, and Twitter.

Philanthropy

Walter and his wife, Marcia, are active philanthropists. They founded the Kortschak Scholars Program for incoming Ph.D. students in computer science at Caltech. They also support the USC Kortschak Center for Learning and Creativity and endowed the Division Chair in Film and Television Production at USC Cinematic Arts.

Career Milestones

1986

Joined Crosspoint Venture Partners

Began his venture capital career.

1989

Joined Summit Partners

Spent 26 years investing in tech companies and became a Senior Advisor.

2007-2010

Forbes Midas List

Named to the Forbes Midas List

2013

Founded SignalFire

Launched SignalFire as a seed fund.

Philanthropy & Social Impact

Education

Kortschak Scholars Program

Undisclosed

Supports Ph.D. students in computer science at Caltech

Education

USC Kortschak Center for Learning and Creativity

Undisclosed

Supports education and learning

Arts/Education

USC Cinematic Arts Division Chair

Undisclosed

Endowed the Division Chair in Film and Television Production

Business Philosophy & Leadership

Notable Quotes

"“Investing is about duration and persistence.”"

"“I don't know a lot of folks in our industry who have done very early stage, growth equity and private equity and done it well, for this long, consistently.”"

Leadership Principles

Duration and Persistence

Emphasizes the importance of long-term perspective and consistency in investing.

Select Outlier Founders

Prioritizes investing in exceptional entrepreneurs.

Discipline in Investment

Emphasizes the importance of managing risk exposure.