68. PCM

This US reseller landed in the UK with a bang in May 2017, quickly hiring scores of sales staff and making two small acquisitions, including Scottish Cisco partner Provista. Although its first set of UK accounts, covering the period to 31 December 2017, show a net loss of £3.7m on revenues of £8.6m, we felt it was fairer to rank PCM using a revenue run rate figure based on the $17.3m (£13.3m) the UK operation turned over in Q3 2018.