Magdalena Martullo-Blocher – $7.7 Billion
Magdalena has a large share in EMS-Chemie, a Swiss polymer, and chemical manufacturing company. Magdalena took over the leadership of the company in 2004 after her father, Christoph Blocher accepted a seat on the Swiss Federal Council. Christoph sold his shares to his kids and in short order, Magdalena followed her father after she was elected to the Swiss Parliament. Before taking charge of EMS-Chemie, she worked at Johnson & Johnson and beverage maker Rivella.

Magdalena Martullo Blocher 7 Point 7 Billion Dollars
