6) Wolfgang Leitner – Net Worth: $1.7 Billion

This 61-year-old self-made billionaire is the largest single shareholder (through Custos private foundation) of Andritz AG, which manufactures processing machinery. The company has strong position in the pulp and paper market.

5) Helmut Sohmen – Net Worth: $2.7 Billion

This 74-year-old billionaire oversees one of the world’s largest maritime groups as the chairman of the BW Group. While shipping stocks were down worldwide last year, his company’s shares rose.