A poverty-stricken childhood steeled Duncan's drive to make his fortune from an early age. He began his entrepreneurial life by trading in cars, but it was with an ice cream van that he changed the course of his life - setting out to become the king of the '99'.
He then switched to nursing homes, becoming a multi-millionaire in the process. Since then Duncan has built up a chain of health clubs called 'Bannatyne's' and also owns Bannatyne's Casino, Bar and Hotels.
He is most famous for his appearance as a business angel on the BBC programme Dragons' Den.
He was appointed an OBE for his contribution to charity. He was also awarded an honorary Doctor of Science (D.Sc.) from Glasgow Caledonian University for services to business and charity.