10. Najib Mikati
Net Worth: $3.8 B
Age: 70
Country: Lebanon
Industry: Telecom
Najib Mikati co-founded Beirut-based investment firm M1 Group. He served as Lebanon’s prime minister until February 2025, having previously held the post from 2011 to 2014 and briefly in 2005. Mikati and his billionaire brother Taha founded Investcom in 1982, selling satellite phones at the height of Lebanon’s civil war. They later expanded into Africa, building mobile phone towers in Ghana, Liberia, Benin, and other markets. In 2005, Investcom went public on the London Stock Exchange, and in 2009 South Africa’s MTN bought the Mikatis’ stake for $3.6 billion.