Susanne Zimmermann von Siefart

Susanne Zimmerman von Siefart owns 50% of the world's largest privately held cleaning equipment company, Alfred Kaercher GmbH & Co. KG.Ownership was transferred to her and her brother Johannes Kaercher years after the death of their father Alfred, who founded Kaercher in 1935.Although not involved in the active management of the company, Zimmerman von Siefart is a member of its supervisory board.The company employs over 12,300 people and generates more than $2.8 billion in annual revenue.