Britain's Top 100 Entrepreneurs 2014: No. 33 - Brian Conlon, First Derivatives

An accountant by training, Brian Conlon is the managing director of First Derivatives, providing support services to the derivatives market. Started in 1996 by Conlon in his Newry apartment with seed capital of £5000, it floated on the Aim in 2002 and is now valued at £192.5m.

Age: 48
Activity: Financial software
Wealth: £82m
Latest turnover: £70m
Five-year rise in turnover: 180%
No. of employees: 806
Five-year rise in employment: 124%
Score: 131