Martin Viessmann (born 1953/54) is a German billionaire businessman, CEO of Viessmann Group, a heating systems manufacturer headquartered in Allendorf, Germany.
[1] The Manager Magazin listed Viessmann in 51st place on its list of the 500 richest Germans in 2013, with an estimated fortune at 2.15 billion euro (2012: 1.95 billion euro).
This puts him in 1750th place on the Forbes list of the world's richest people.
[3] In 2012, Greg Kleinheinz was appointed as the first Viessmann Endowed Chair in Sustainable Technology at the University of Wisconsin Oshkosh, created with an endowment from Viessmann and his wife Annette.
[4] Viessmann and his wife Annette have two children, Katharina and Maximilian, and live in Allendorf, Germany.