25. Othman Benjelloun & family

Net Worth: $1.4 B
Age: 91
Residence: Morocco
Nationality: Moroccan
Industry: Finance & Investments

Othman Benjelloun is CEO of BMCE Bank of Africa, which has a presence in more than 20 African countries. His father was a shareholder in RMA, a Moroccan insurance company; Benjelloun built it into a leading insurer. Through his holding company, FinanceCom, he has a stake in the Moroccan arm of French telecom firm Orange. In 2014, he inaugurated a $500 million plan to build the 55-story Mohammed VI Tower in Rabat. It will be one of the tallest buildings in Africa.