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Billionaire Profile
Thierry Dassault
Global Rank
#248

Image: Public domain | via Wikimedia Commons

Thierry Dassault

CEO, Dassault Group
FR
Real-Time Net Worth
$9.6B
As of December 2025
Age
68
Source
Diversified
Industry
diversified
Citizenship
FR

Biography

Thierry Dassault, a French billionaire, born March 26, 1957, is a key figure in the diversified industry. As the chairman of the supervisory board and deputy CEO of the Dassault Group, he is a leading investor and entrepreneur. His estimated net worth is $9.6 billion, and he is ranked as one of the wealthiest individuals globally. The source of his wealth is diversified, stemming from his family's interests in aerospace, software, media, and other ventures. His career highlights his leadership in transforming the Dassault Group into a global leader. He is also known for his philanthropic work and support of cultural institutions. Thierry is a private person known for his love of art and music and is a patron of several cultural institutions.

Wealth Over Time

In-Depth Profile

Early Life

Thierry Dassault was born on March 26, 1957, in Neuilly-sur-Seine, France. He is the son of Serge Dassault and the grandson of Marcel Dassault, the founder of the Dassault Group. He is of Jewish descent. He grew up in a wealthy and influential family and received a privileged education.

Rise to Success

Thierry Dassault began his career in the family business, the Dassault Group. He held various positions within the company and eventually became chairman of the supervisory board and deputy CEO. He has been in and out of the family's company since 1979, with stints in the film world as a producer. In 2019, he succeeded his sister Marie-Hélène as president of the supervisory board of the Dassault Group. He also runs his own investment vehicle, TDH.

Key Business Strategies

Thierry Dassault's leadership is characterized by a focus on ensuring the Dassault Group's continued success in an increasingly competitive global market. He has been an advocate for integrating cutting-edge technologies into design processes, such as virtual reality, to enhance efficiency and reduce environmental impact. His entrepreneurial spirit aligns with the Dassault family's broader ethos of innovation and exploration.

Philanthropy

Thierry Dassault supports various cultural and humanitarian initiatives, reflecting his family's values of responsibility and community engagement. He serves as the Vice President of France's Kidney Foundation.

Career Milestones

1979

Joined Dassault Group

Began his career in the family business.

2006

Founded TDH

Started his own investment vehicle.

2019

Chairman of the Supervisory Board and Deputy CEO of the Dassault Group

Succeeded his sister Marie-Hélène.

Philanthropy & Social Impact

Healthcare

Kidney Foundation

Not Available

Serves as the Vice President.

Business Philosophy & Leadership

Leadership Principles

Innovation

Embraces new technologies and approaches to enhance efficiency and reduce environmental impact.

Legacy

Committed to upholding the values and vision of the Dassault brand.