Britain's Top 100 Entrepreneurs 2014: No. 52 - Richard Higham, Acteon

Offshore oil services group Acteon was sold to a private equity company in 2012. The price was not disclosed but the sale was reckoned to value the business at £900m. Richard Higham, as chief executive of the Norwich-based operation, had a 27% stake. He remains at Acteon which saw its 2013 profits soar to over £28m on a near £498m turnover.

Age: 56
Activity: Oil and gas services
Wealth: £300m
Latest turnover: £498m
Five-year rise in turnover: 73%
No. of employees: 2240
Five-year rise in employment: 26%
Score: 156