Former hippy Dale moved into wind energy in 1996 and started the world's first green energy company. In 2012-13 Stroud-based Ecotricity made £389,000 profit on record sales of £65.6m.
Activity: Renewable energy
Latest turnover: £66m
Five-year rise in turnover: 74%
No. of employees: 285
Five-year rise in employment: 78%