W olfgang Leitner is an Austrian billionaire who built his fortune in the industrial technology and engineering sectors. He is the president and CEO of the Andritz Group, a major global supplier of plants, equipment, and services for a variety of industries, including hydropower stations, the pulp and paper industry, and the metalworking industry. He began his career at Andritz and later left to become a consultant. He returned to the company in the 1990s, leading a management buyout to take control of the firm.

As the leader and largest shareholder, he has transformed Andritz from a successful Austrian company into a major global industrial technology powerhouse through a strategy of international expansion and acquisitions. He has also diversified his family's wealth by taking a significant stake in the Malaysian rubber glove manufacturer, Kossan Rubber Industries. His successful career as a hands-on industrialist has made him one of the wealthiest individuals in Austria.