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Andrew Michael

Cyprus-born Michael, 27, started his Fasthosts internet business in his bedroom, aged 17. From its Gloucester headquarters provides e-mail and other web services to small firms. Sales soared from £240,000 in 1999 to £20m in 2005, and last year the German company ISP United Internet paid £61.5m for Fasthosts. Michael picked up £46m for his stake.