Susanne Klatten – $ 18.5 billion
Susan is considered the richest woman in Germany. She, her brother Stefan Quandt and her mother Johanna Quandt (all billionaires) together hold 50% stake in BMW. In addition, Klatten leads pharmaceutical company Altana and has a stake in Nordex AG, engaged in the production of equipment for the production of wind energy. The family also owns a stake in the company Geohumus, which develops additives for the soil, and in the company SGL – carbon and graphite producer.