3 . Eric E. Schmidt
Eric Schmidt is a businessman, software engineer and the executive chairman of the well-known Google Company. In the year 2013, he was considered as the 138th richest person in the world. In the early days of his career, he was among the authors of Lex Software for the Unix computer OS. Starting 1997, he was the chief executive of Novell until 2001. Since 2001 he works as the CEO of Google. His estimated wealth is $8.2 billion.