Known to friends as ‘The Cooler', Paris-based Coulson last month listed his company Ardagh, a giant in the packaging and glass bottle business. It valued his stake at close to 1.5bn, vastly increasing previous estimates of his personal wealth.
First founded as the Irish Glass Bottle Company in 1932, it has grown massively since Coulson first invested in 1998 and now produces everything from Budweiser beer bottles to Lynx aerosol cans.
Ardagh has paid huge dividends to Coulson. He owns properties in Dublin's Shrewsbury Road, a home in Paris and properties in Portugal. There's also a 164ft yacht off Sardinia. He's a major donor to the private Jesuit school Gonzaga, which has named its theatre after him.