Billionaire Profile
John Tu
Global Rank
#123

Image: Alfred Rudolph Waud | Public domain | via Wikimedia Commons

John Tu

CEO, Computer hardware
UNITED STATES
Real-Time Net Worth
$21.663B
Estimated based on Computer hardware stock value as of April 20, 2026
0% (24h)
Age
84
Source
Computer hardware
Industry
Technology
Citizenship
UNITED STATES

Biography

John Tu, a US citizen, is an 84-year-old Taiwanese-American billionaire and philanthropist, celebrated as the co-founder of Kingston Technology. His wealth source is computer hardware. Tu's journey began with an electrical engineering degree from the Technical University of Darmstadt in Germany. He immigrated to the United States in 1971, which led to a successful career in the tech industry, including the founding of Camintonn Corporation in 1982, and subsequently Kingston Technology in 1987 with his business partner David Sun. His career reflects a move from engineer to tech titan. Tu's achievements include building Kingston into the world's largest independent manufacturer of computer memory products. With a net worth of $17.4 billion, Tu continues to work from his cubicle in the company and maintains a low profile, emphasizing an employee-focused culture.

Fact Checked
Verified by Editorial Team
Live Data
Updated 4/20/2026

Wealth Over Time

In-Depth Profile

Early Life

John Tu was born in Chongqing, China, on August 12, 1941, during a period of war. His family later moved to Taiwan. In 1960, he went to West Germany to study electrical engineering. He later studied at the Technische Hochschule Darmstadt, where he earned a degree in electrical engineering in 1970. He immigrated to the United States in 1971.

Rise to Success

In 1982, he co-founded Camintonn Corporation with David Sun. They sold this company in 1986 for $6 million. After the 1987 stock market crash, which led to significant financial losses for Tu and Sun, they founded Kingston Technology the same year. In 1996, they sold 80% of Kingston to SoftBank for $1.5 billion, giving $100 million to their employees. Tu and Sun then bought back the company in 1999 for $450 million.

Key Business Strategies

Kingston Technology focused on providing high-quality, affordable memory solutions for personal computers. This strategy helped Kingston grow rapidly. The company expanded into networking and storage product lines. It also introduced portable products. Tu and Sun never raised venture capital for their business and have maintained 50/50 ownership.

Philanthropy

John Tu is well known for his philanthropy. He invested $50 million in 2020 in Fluxergy, a diagnostic testing firm. He has also supported educational initiatives for underprivileged youth.

Career Milestones

1970

Graduated with a degree in electrical engineering

Graduated from Technische Hochschule Darmstadt in Germany.

1982

Co-founded Camintonn Corporation

Co-founded a computer hardware company with David Sun.

1986

Sold Camintonn Corporation

Sold Camintonn Corporation.

1987

Co-founded Kingston Technology

Co-founded Kingston Technology with David Sun.

1996

Sold 80% of Kingston Technology to SoftBank

Sold 80% of Kingston Technology to Softbank for $1.5 billion.

1999

Bought back Kingston Technology from Softbank

Bought back Kingston Technology from Softbank for $450 million.

2020

Invested in Fluxergy

Invested $50 million in Fluxergy, a diagnostic testing firm.

Philanthropy & Social Impact

Healthcare

Fluxergy Investment

$50M

Invested in a diagnostic testing firm developing rapid pathogen detection technology.

Education

Freedom Writers Foundation

Unknown

Supported Erin Gruwell's Freedom Writers and the Freedom Writers Foundation.

Education

UC Irvine iPad Donation

$1.2M

Donated to provide iPads for first-year medical students at UC Irvine.

Philanthropy & Grantmaking

John and Mary Tu Foundation Donations

$23.5M

The John and Mary Tu Foundation has supported causes focused on education, the arts, and health initiatives. Annual giving has decreased from $10.2M in 2020 to $4M in 2023.

Business Philosophy & Leadership

Notable Quotes

"I often tell people, you know, I think in one's lifetime if you have just touched someone, one person, and made a difference, then I think you are already very, very, successful."

Leadership Principles

Employee Focus

Emphasizes a hands-on, employee-focused culture.

Teamwork and Humility

Believes in respect, humility, and teamwork as core drivers of success.