Siegfried Meister (17 October 1938 â 28 July 2017) was a German billionaire businessman, founder and 63% owner of Rational AG.
Meister was born in 1938. He trained as an electrical engineer.
In 1973, he founded Rational AG, which rose to success as a result of the popularity of the combination steamer, which he helped to develop. He owned 63.7% of Rational.
In March 2017, Forbes estimated his net worth at US$3.8 billion.
He was married to Gabriella Meister, and they lived in Landsberg am Lech, Germany. He died on 28 July 2017.