Billionaire Profile
James Clark
Global Rank
#508

Image: Wildman, John R. (1785) | Public domain | via Wikimedia Commons

James Clark

CEO, Netscape
UNITED STATES
Real-Time Net Worth
$7.478B
Estimated based on Netscape stock value as of March 6, 2026
+0.64% (24h)
Age
81
Source
Netscape, investments
Industry
Technology
Citizenship
UNITED STATES

Biography

James H. Clark (born March 23, 1944) is a prominent American entrepreneur and computer scientist. His net worth is estimated at $4.5 billion, primarily sourced from his ventures in Netscape and various investments. He founded several successful technology companies, including Silicon Graphics, Netscape Communications Corporation, Healtheon (later WebMD), and myCFO. Clark's career began with a strong academic foundation, including a Ph.D. in Computer Science from the University of Utah, and later he became an associate professor at Stanford University. His achievements encompass pioneering work in computer graphics and leadership in the computer industry, notably co-founding Netscape with Marc Andreessen, which revolutionized web browsing. Clark is known for his strategic investments in companies like Apple, Meta, and Palantir. He is married to Kristy Hinze and resides in Palm Beach, Florida.

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

Wealth Over Time

In-Depth Profile

Early Life and Education

James H. Clark was born on March 23, 1944, in Plainview, Texas. After dropping out of high school at 16, he served in the U.S. Navy for four years. Following his naval service, Clark pursued higher education, earning bachelor's and master's degrees in Physics from the University of New Orleans and a Ph.D. in Computer Science from the University of Utah. His early life was marked by challenges, including a difficult childhood, which led to his early departure from high school.

Rise to Success

Clark's career took a pivotal turn in the tech industry. In 1982, he founded Silicon Graphics, Inc. (SGI), which focused on 3D imaging hardware and software. SGI became a leader in producing visual effects for Hollywood movies. Leaving SGI in 1994, Clark co-founded Netscape with Marc Andreessen. Netscape's IPO was a landmark event, instrumental in the Internet IPO boom of the mid-to-late 1990s. The success of Netscape propelled Clark to billionaire status. After the sale of Netscape to AOL, Clark moved on to found Healtheon, which later became WebMD.

Key Business Strategies

Clark's business strategies have been marked by his ability to identify and capitalize on emerging technologies. He was an early investor in companies such as Apple, Facebook, and Twitter. His strategic investments and ventures have been key to the growth of his wealth. He founded CommandScape, an app that controls building systems, showcasing his continued interest in innovation.

Philanthropy

Clark is also known for his philanthropic efforts, primarily supporting educational institutions such as Stanford University and Tulane University. His philanthropic activities include contributing to the James H. Clark Center for Biomedical Engineering & Science at Stanford and supporting the World Wide Fund for Nature (WWF).

Career Milestones

1982

Founded Silicon Graphics, Inc.

Founded the company focused on 3D imaging hardware and software.

1994

Cofounded Netscape Communications Corporation

Cofounded the web browser company, which became instrumental in the Internet boom.

1999

Founded myCFO

Founded a wealth management firm to help wealthy individuals.

2000

Founded Healtheon

Founded the healthcare IT company (later WebMD).

Philanthropy & Social Impact

Education

Stanford Institute for Theoretical Physics

$10M

Donated to fund fellowships at the Stanford Institute for Theoretical Physics.

Education

Tulane University's School of Engineering

$30M

Donated to establish merit-based scholarships.