Billionaire Profile
Joseph Tsai
Global Rank
#236

Image: tak.wing | CC BY-SA 2.0 | via Wikimedia Commons

Joseph Tsai

CEO, E-commerce
CANADA
Real-Time Net Worth
$13.144B
Estimated based on E-commerce stock value as of April 20, 2026
+0.15% (24h)
Age
62
Source
E-commerce
Industry
Technology
Citizenship
CANADA

Biography

Joseph Tsai is a Taiwanese-Canadian billionaire businessman, lawyer, and philanthropist. As co-founder and chairman of Alibaba Group, he has played a pivotal role in the growth of one of the world's largest e-commerce companies, significantly impacting the technology industry. His net worth, estimated at $13.1 billion, reflects his success in e-commerce and strategic investments. Tsai's career includes key roles in Alibaba's financial and legal structuring, solidifying his position as a key leader in the company. Beyond his business achievements, Tsai is also known for his ownership of the Brooklyn Nets and his philanthropic endeavors.

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

Wealth Over Time

In-Depth Profile

Early Life and Education

Joseph Chung-Hsin Tsai was born in Taipei, Taiwan, in January 1964. At 13, he was sent to the U.S. to attend the Lawrenceville School in New Jersey, where he played lacrosse and football. He earned a Bachelor of Arts in economics and East Asian studies from Yale University in 1986 and a Juris Doctor from Yale Law School in 1990. He was a member of the varsity lacrosse team at Yale.

Rise to Success

After graduating from law school, Tsai began his career as a tax associate at Sullivan & Cromwell LLP. He later joined Rosecliff, Inc., a small management buyout firm, before moving to Hong Kong in 1995 to work for Investor AB. In 1999, Tsai joined Jack Ma as a co-founder of Alibaba Group. He played a crucial role in establishing Alibaba's financial and legal structure. He served as the Chief Financial Officer until May 2013 and became the Executive Vice Chairman. In September 2023, he became the chairman of the company.

Key Business Strategies

Tsai has been instrumental in Alibaba's strategic acquisitions and investments. He was a key dealmaker in the company's expansion beyond its core Chinese online retail business, including international retail, financial technology, and media and entertainment. His focus on long-term strategic planning has been critical to Alibaba's global success. He is the second-largest individual shareholder of Alibaba after Jack Ma. In 2024, he sold 15% of BSE Global, the parent company of the Brooklyn Nets, to Julia Koch for around $700 million.

Philanthropy

Joseph Tsai and his wife, Clara Wu Tsai, are active philanthropists. Through the Joe and Clara Tsai Foundation, they support education, research, criminal justice reform, economic mobility, the arts, and humanitarian relief. In March 2016, Tsai donated $30 million to Yale Law School and in 2020, the foundation launched the Social Justice Fund, which carries out most of the foundation's philanthropic work.

Career Milestones

1990

Tax Associate

Began his career as a tax associate at Sullivan & Cromwell LLP.

1995

Private Equity Investor

Joined Investor AB in Hong Kong, managing Asian private equity investments.

1999

Co-founder of Alibaba Group

Joined Jack Ma as a co-founder of Alibaba Group.

2013

Executive Vice Chairman

Became the Executive Vice Chairman of Alibaba.

2017

Purchased a stake in Brooklyn Nets

Purchased a 49% stake in the NBA's Brooklyn Nets

2019

Full Ownership of Brooklyn Nets

Acquired full control of the Brooklyn Nets.

2023

Chairman of Alibaba Group

Became the chairman of Alibaba Group.

Philanthropy & Social Impact

Education

Yale Law School Donation

$30M

Donated to Yale Law School in honor of his father to support the continuing work of the Law School's China Center.

Research

Wu Tsai Neurosciences Institute at Stanford University

Undisclosed

Supports the understanding of how the brain gives rise to mental life and behavior.

Social Justice

Social Justice Fund

$50M

Committed to address racial justice and economic mobility challenges in Brooklyn, New York.

Research

Wu Tsai Institute at Yale University

Undisclosed

For understanding human cognition.

Humanitarian Relief

COVID-19 Relief

Undisclosed

Donated PPE and ventilators to hospitals and institutions.

Business Philosophy & Leadership

Notable Quotes

"I knew I was in an environment to learn, so I didn't want to stick out. I knew I had a knowledge that nobody else had, so people could trust that aspect to me...I don't pretend to do everything. I knew what my role was [on joining Alibaba]."

"Supporting a separatist movement in a Chinese territory is one of those third-rail issues, not only for the Chinese government, but also for citizens of China."

"As a leader, our job is to support and provide them with the best resources. To create a productive environment, the leader needs to be the 'lowest maintenance' person in the company. That way, the team can focus on what they do best instead of worrying about pleasing you.”"

Leadership Principles

Teamwork and Support

Supports and provides resources to the team.

Focus and Specialization

Knowing and focusing on one's role within a team.

Transparency

Transparency is the best training ground for leadership.

Controversies & Challenges

2019

Hong Kong Protests

Called pro-democracy protests in Hong Kong a “separatist movement”.

2022

Uyghur Muslims Controversy

Accused of financially supporting the 'cultural genocide' of Uyghur Muslims in China due to investments in AI companies used by the Chinese government.

2019

Daryl Morey Tweet

Criticized Daryl Morey's tweet supporting Hong Kong protesters, calling it a “separatist movement.”