6) PRINCE SULTAN BIN MOHAMMED BIN SAUD AL KABEER
Net Worth: $3.4 Billion
Source of wealth: Dairy farms; self-made
Country of Citizenship: Saudi Arabia
Prince Sultan Al Kabeer is a member of the Saudi royal family. He founded dairy company Almarai in 1977 and took it public in 2005, keeping a nearly 29% stake. One of the largest dairy operations in the Middle East.