German businessman Martin Viessmann has an estimated net worth of $3.4 billion as of April 2016, according to Forbes. He is known to be the owner of Viessmann Werke GmbH which is considered as one of the largest manufacturers of heating equipment and boilers in Europe. The company was founded by his father more than 90 years ago. In 2011, the company's sales rose by around 8% and by 2012, it was expected to incur a positive detriment of around five percent. Today, the company is operating in ten manufacturing plants found in different countries in the world which include China, Poland, Germany and Canada.

Martin Viessmann earned his diploma from the University of Erlangen. He is currently married with two children. Previously, he served as the Managing Director of Viessmann Limited. He works for Viessmann Manufacturing Company, Inc. as its President. He also serves as the CEO and Chairman of the Managing Board of Viessmann Werke GmbH & Co.