8) Rahel Blocher – Net worth: $3.4 Billion
This 38 year old billionaire, along with his sister, is the largest shareholder of Ems-Chemie, the polymer and chemical manufacturer. Her family has been running the company for decades.
7) Magdalena Martullo-Blocher – Net worth: $3.4 Billion
This 45 year old billionaire took the reigns of Ems-Chemie from her father Christoph Blocher in 2004, when he left the company after 35 years to serve in the Swiss government.