T aha Mikati is a Lebanese billionaire businessman who, along with his younger brother Najib Mikati (who has served multiple terms as Lebanon's Prime Minister), co-founded the telecommunications company Investcom. In 1982, the brothers founded the company and built it into a major mobile network operator, securing licenses and building networks in emerging markets across the Middle East and Africa.

Their most significant financial success came in 2006 when they sold Investcom to the South African telecom giant MTN Group for $5.5 billion, a deal that made both brothers billionaires. Since the sale, they have managed their shared fortune through their private investment firm, M1 Group, which is based in Beirut. Taha is the chairman of the group, which has a highly diversified portfolio of global investments in sectors such as real estate, aviation finance, and fashion, where they own the Pepe Jeans brand. He is known for being more focused on the family's business interests, while his brother has pursued a high-profile political career.