Welsh-born Lawrence Jones sold a corporate entertainment business, the Music Design Company, to Granada in 1997. Two years later he started internet hosting company UKFast. The fast growing Manchester-based operation has won numerous industry awards and in 2013 saw its profits soar to £8.5m on £23.5m sales. Jones and his family own it all. He turned down a £200m takeover approach in June.
Activity: Cloud computing
Latest turnover: £24m
Five-year rise in turnover: 166%
No. of employees: 250
Five-year rise in employment: 268%