Fast-growing BJSS develops bespoke software for a raft of blue chip customers in the financial services, energy trading and retail sectors. Founded in 1993, the Leeds-based company opened a New York office in 2013. Its profits hit £11.5m on £47.68m sales in 2012-13. Andrew Vincent, the managing director, has a near 49% stake.
Latest turnover: £48m
Five-year rise in turnover: 153%
No. of employees: 282
Five-year rise in employment: 120%