Yasseen Mansour is a shareholder in the family-owned conglomerate Mansour Group, which was founded by his father, Loutfy (d. 1976), in 1952. Mansour Group is the exclusive distributor of GM vehicles and Caterpillar equipment in Egypt and several other countries. His brothers, Mohamed and Youssef, are also billionaires and part owners of the Mansour Group. He's chairman of Palm Hills Developments, one of Egypt's biggest real estate developers.