10. Ayman Hariri
Ayman Hariri is the Lebanese businessman and billionaire and the 2nd youngest son the former Prime Minister of Lebanon Rafik Hariri. He is involved in the dealing the business of Saudi Oger which is the Saudi Arabian construction company and he is served as the deputy chairman and the CEO of the Saudi Oger. Ayman Hariri estimated net worth is US $ 1.1 billion and he is ranked at No. 10 in the list of top 10 richest people of Lebanon.