Stockport jewellers Warren James Holdings is run by brother and sister team John Coulter and Anne Jones. The fast growing operation has 135 stores nationwide and is planning a new headquarters. In 2012-13, its parent, WJH Ltd, made £17.1m profit on £58.6m sales.
Latest turnover: £59m
Five-year rise in turnover: 23%
No. of employees: 828
Five-year rise in employment: 18%