How he made his pile: Duncan Bannatyne - Hotel/entertainment magnate

Who is he? An entrepreneur known as 'Dragon Duncan' after his stint on BBC 2's Dragon's Den. Bannatyne, 57, started out in a Clydebank tenement house and is now worth £168 million.

Last Updated: 31 Aug 2010

How did he make his millions? In 1978, after a spell in the navy, he bought an ice-cream van for £450. By the mid-80s he had his own business, Duncan's Super Ices, which he sold to fund a chain of nursing homes. Interests now include a casino, a hotel, and his Bannatyne Fitness health club chain (annual turnover £30 million).

The secret of his success? His self-assurance showed itself early - at 19 he threw his commanding officer off an aircraft carrier for a £5 bet. Numerous sultry portrait photos in his new autobiography endorse his claim that 'modesty is not a quality required by an entrepreneur'. However, his self-professed 'computer-like ability with numbers' was apparently invaluable.

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