Thomas Schmidheiny Net Worth

Thomas Schmidheiny has an estimated net worth of $9.5 billion, according to Forbes Real-Time Billionaires, Thomas Schmidheiny profile (figures as of October 20, 2026). That is up from $4.4 billion in 2019.

Thomas Schmidheiny is a Swiss businessman best known for his long run at Holcim, a major cement maker. His family had been in construction materials for generations, starting with a business founded in 1912. In 1984, his father split the family estate and Schmidheiny inherited Holcim, the cement and concrete side. He later led the company for 20 years and stayed closely tied to it after stepping down as chairman in 2003.

Most of Schmidheiny’s wealth comes from Holcim, which became even larger after a 2014 merger that created the current group. Forbes says he is honorary chairman and notes that he left the board in 2018. Outside cement, he also owns wineries in California, Argentina, and Switzerland. Forbes put his fortune at $9.5 billion on its real-time billionaires tracker as of October 20, 2026, placing his money mainly in cement and building materials.

How Thomas Schmidheiny makes money

Schmidheiny’s fortune is centered on cement and other building materials. The family business began in 1912, when his great-grandfather Jacob founded the company that later grew into a much bigger bricks and cement group. In 1984, Max Schmidheiny divided the family holdings, and Thomas received Holcim while his brother Stephan got Eternit. That split made Thomas the key family figure in cement and concrete, the business that still anchors his wealth.

He spent 20 years running Holcim and retired as chairman in 2003. Forbes says he is now honorary chairman and that Holcim became part of a much larger company through a mega-merger in 2014. That deal is a major reason his wealth is tied to a global building materials giant. Schmidheiny also has wineries in California, Argentina, and Switzerland, giving him another business interest beyond cement.

Forbes net worth trend

Forbes tracked Schmidheiny’s fortune through a wide move over time. It estimated his wealth at $4.4 billion in 2019, then $3.4 billion in 2020. After that, the number climbed to $4.8 billion in 2021 and $4.9 billion in 2022. Forbes notes that the core of his wealth is his stake in Holcim, so the estimate is closely linked to the value of his holdings in cement and building materials.

The upward move continued in later Forbes estimates. His fortune rose to $5.7 billion in 2023, $7 billion in 2024, $8.4 billion in 2025, and $11.1 billion in 2026 on the World’s Billionaires List. Forbes later showed $9.5 billion on its real-time tracker in October 2026. The main driver stayed the same throughout: his longtime ownership connected to Holcim and the larger company formed by the 2014 merger.