9. Polys Haji-Ioannou (Net Worth: $1.1 Billion)
Polys Haji-Ioannou is a billionaire thanks to his stake in his brother, Stelios’, discount airline company EasyJet. Polys also owns a transport company, Polyar Tankers, which has around 20 tanks. His father Loucas Haji-Ioannou, the self-styled “King of Tankers,” purchased his first oil tanker in 1969. Polys is based in Monaco but owns more than 50 properties around the world, in countries including Singapore, Greece and India.Polys is the son of Cypriot shipping magnate Loucas Haji-Ioannou, who at one point owned the largest private tanker fleet in the world.
Most of his wealth derives from a large stake in easyJet, the discount airline founded by his younger brother, Stelios. Polys continues the family’s shipping legacy with his own 18-tanker fleet.
He has also invested heavily in both commercial and residential real estate, particularly in Cyprus, Greece and Norway.