57. Probrand - £36.6m

The Brummie reseller’s top line took a big hit in 2011 as it “followed a policy of moving away from high-turnover, low-margin business”. Its revenue has consequently come down from well above the £50m mark, although gross margins improved from nine to 11 per cent last year. However, operating profit also took a hit, decreasing more than 50 per cent to £356,547.