Billionaire Profile

Global Rank

#478

Image: Public domain | via Wikimedia Commons

Thomas Kirk Kristiansen

CEO, The Lego Group

Real-Time Net Worth

$7.7B

As of December 2025

Age

Source

Lego

Industry

manufacturing

Citizenship

Biography

Thomas Kirk Kristiansen, born in 1979, is a Danish businessman and the fourth-generation owner of The Lego Group. As the chairman of both Kirkbi A/S and the Lego Group since May 2023, he plays a central role in shaping the company's direction and upholding its legacy. With a degree in marketing, Kristiansen has been involved with the company since 2007, serving on the board of directors and holding positions such as deputy chairman before assuming the chairmanship. His leadership is crucial in maintaining the family's 75% ownership stake in Lego, a company known for its iconic interlocking bricks and its global presence in the toy industry. He is married to Signe Kirk Kristiansen and they have a daughter. His net worth is estimated at $7.7 billion as of December 5, 2025.

Wealth Over Time

Portfolio Holdings

Lego Group

In-Depth Profile

Early Life

Thomas Kirk Kristiansen was born on February 18, 1979, in Billund, Denmark. He is the son of Kjeld Kirk Kristiansen and Camilla Kristiansen. His great-grandfather, Ole Kirk Kristiansen, founded The Lego Group in 1932. Thomas earned a degree in marketing.

Rise to Success

Thomas Kirk Kristiansen's career has been closely tied to the Lego Group, a company deeply rooted in his family's history. In 2007, he joined the board of directors of the LEGO Foundation. He became deputy chairman in 2016, further solidifying his role within the company. In 2020, Thomas was appointed Chairman of the Board of Directors. On May 1, 2023, he succeeded his father, Kjeld Kirk Kristiansen, as Chairman of Kirkbi A/S and The Lego Group.

Key Business Strategies

As chairman, Thomas Kirk Kristiansen is instrumental in overseeing the strategic direction of Lego. The Kristiansen family, through Kirkbi A/S, owns a 75% stake in The Lego Group. Thomas also serves as the chairman of the Lego Foundation, which focuses on children's education and development. The Lego Group has expanded its product range and global presence while maintaining its core values of creativity and play.

Philanthropy

Thomas is involved in the LEGO Foundation, which supports various initiatives aimed at children's education and development.

Career Milestones

2007

Board of Directors, LEGO Foundation

Joined the board of directors of the LEGO Foundation, demonstrating a commitment to the company's philanthropic initiatives.

2016

Deputy Chairman

Appointed as deputy chairman, solidifying his role in shaping the company's strategic direction.

2020

Chairman of the Board

Appointed Chairman of the Board of Directors.

2023

Chairman of Kirkbi A/S and The Lego Group

Succeeded his father, Kjeld Kirk Kristiansen, as Chairman of Kirkbi A/S and The Lego Group.

Philanthropy & Social Impact

Education

LEGO Foundation

Undisclosed

Serves as chairman, focusing on children's education and development.