77. Esteem Systems - £23.7m

Last year was a tough one for the Leeds VAR as its historic Sun business was hit to the tune of £7.1m, following the hardware vendor’s acquisition by Oracle. Some uptick in sales around other partners mitigated the revenue downturn to £5.9m. Operating profit also took a big hit in FY11, falling from £2.8m to £1.2m.