Thomas Kirk Kristiansen Net Worth

Lego owner and chairman
BillionaireBusiness
Estimated net worth
$7.9B
Source: Forbes Real-Time Billionaires, October 20, 2026. Updated October 22, 2026.

Thomas Kirk Kristiansen’s net worth over time

$4.7B: Forbes World's Billionaires List 2019 estimate, 2019$4.7B2019$6.1B: Forbes World's Billionaires List 2020 estimate, 2020$6.1B2020$8.7B: Forbes World's Billionaires List 2021 estimate, 2021$8.7B2021$8.2B: Forbes World's Billionaires List 2022 estimate, 2022$8.2B2022$6.7B: Forbes World's Billionaires List 2023 estimate, 2023$6.7B2023$6.5B: Forbes World's Billionaires List 2024 estimate, 2024$6.5B2024$7.2B: Forbes World's Billionaires List 2025 estimate, 2025$7.2B2025$8.3B: Forbes World's Billionaires List 2026 estimate, 2026$8.3B2026$7.9B: Forbes Real-Time Billionaires estimate, Oct 2026. Forbes real-time estimate$7.9BOct 2026

Only dates with a published estimate are shown. Nothing is filled in between. Tap or hover a bar to see the source.

See the numbers as a table
DateEstimateSource
2019$4.7 billionForbes World's Billionaires List 2019
2020$6.1 billionForbes World's Billionaires List 2020
2021$8.7 billionForbes World's Billionaires List 2021
2022$8.2 billionForbes World's Billionaires List 2022
2023$6.7 billionForbes World's Billionaires List 2023
2024$6.5 billionForbes World's Billionaires List 2024
2025$7.2 billionForbes World's Billionaires List 2025
2026$8.3 billionForbes World's Billionaires List 2026
Oct 2026$7.9 billionForbes Real-Time Billionaires · Forbes real-time estimate

Where the money comes from

Lego

These are the main sources of wealth named in the reporting we cite. No published source breaks the total into exact amounts, so we do not show percentages.

Thomas Kirk Kristiansen’s fortune in real-life terms

120,766 years
for the median full-time U.S. worker to earn this much, spending nothing
36,557×
the net worth of the typical U.S. family
0.9%
of Elon Musk's fortune, the biggest on Net Worth Lookup

Based on the Forbes Real-Time Billionaires estimate above. Median full-time U.S. pay is $65,416 a year ($1,258 a week, BLS, Q2 2026), before taxes. Typical (median) U.S. family net worth is $216,100 (Federal Reserve, 2025 Survey of Consumer Finances).

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Thomas Kirk Kristiansen has an estimated net worth of $7.9 billion, according to Forbes Real-Time Billionaires, Thomas Kirk Kristiansen profile (figures as of October 20, 2026). That is up from $4.7 billion in 2019.

Thomas Kirk Kristiansen is a Danish fourth-generation owner of Lego. He is one of the family members who split ownership of a 75% stake in the company with his father, Kjeld, and his sisters, Agnete and Sofie. He took an active role in the business over time, joining the board of the Lego Foundation in 2007. In 2016, he became deputy chairman after succeeding his father in that board role.

His wealth is tied to the family’s Lego stake and related holdings. In 2020, he was appointed chairman of the board of directors, and on May 1, 2023, his father passed the title of chairman of Kirkbi and the Lego Group to him. The family business traces back to 1932, when his great-grandfather Ole began making wooden toys, then moved into plastic in the 1940s. Forbes put his net worth at $7.9 billion in October 2026.

How Thomas Kirk Kristiansen makes money

Kristiansen’s fortune comes from Lego, the toy company his family has controlled for generations. He, his sisters, and his father split ownership of a 75% stake in the business. Forbes notes that the company had $8 billion in sales. His role is not just passive ownership, either. Over the years, he moved into senior leadership posts at both the Lego Group and Kirkbi, the family holding company.

His business position grew step by step. He joined the board of the Lego Foundation in 2007, became deputy chairman in 2016, and was appointed chairman of the board of directors in 2020. In 2023, he also took over as chairman of Kirkbi and the Lego Group. The family has another major asset outside toys as well: about half of Merlin Entertainments, which it took private with a consortium in 2019.

What Forbes says about his fortune

Forbes has tracked big swings in Kristiansen’s wealth in recent years. It estimated his net worth at $4.7 billion in 2019, then $8.7 billion in 2021. After that, the estimate moved lower to $6.5 billion in 2024 before rising again. Those changes line up with a fortune built around a family stake in Lego, plus holdings through Kirkbi and the family’s interest in Merlin Entertainments.

The most recent Forbes snapshots show another jump. Forbes valued him at $8.3 billion on the 2026 World’s Billionaires List, and its real-time tracker showed $7.9 billion on October 20, 2026. His wealth remains connected to long-held family ownership rather than a self-made startup story. Forbes places him in manufacturing, reflecting the Lego business at the center of the family fortune.

Career and money timeline

  1. 1932

    His great-grandfather Ole started making wooden toys in a workshop.

  2. 1940s

    The family business moved from wooden toys into plastic.

  3. 2007

    He joined the board of the Lego Foundation.

  4. 2016

    He succeeded his father as deputy chairman of the company’s board.

  5. 2020

    He was appointed chairman of the board of directors.

  6. 2023

    He became chairman of Kirkbi and the Lego Group.

Thomas Kirk Kristiansen net worth FAQ

What is Thomas Kirk Kristiansen's net worth?

Thomas Kirk Kristiansen's net worth is an estimated $7.9 billion, according to Forbes Real-Time Billionaires, Thomas Kirk Kristiansen profile (October 20, 2026). It is an estimate, not an official figure.

How did Thomas Kirk Kristiansen get so rich?

The main sources named in the reporting we cite are: Lego.

Is Thomas Kirk Kristiansen a billionaire?

Yes. Forbes Real-Time Billionaires estimates Thomas Kirk Kristiansen is worth $7.9 billion.

How has Thomas Kirk Kristiansen's net worth changed?

The earliest published estimate we track is $4.7 billion (2019, Forbes World's Billionaires List 2019). The latest is $7.9 billion (October 20, 2026).

What company is Thomas Kirk Kristiansen best known for?

He is best known as a family owner and leader tied to Lego. His fortune is linked to the family’s 75% stake in the company.

Does his family own assets outside Lego?

Yes. The family also owns about half of Merlin Entertainments. It took the theme park operator private with a consortium in 2019.