83. CSI

Key points

Revenue: £46.4m (+19%)

Net profit: 2.5%

Staff: 168

CSI chief executive Simon Payne told CRN in February that this IBM and SAP partner's revenue run rate now stands at £57m following its acquisition of struggling rival Niu Solutions, its first deal since taking on fresh private equity investment in 2017. In its year to 31 December 2017, the London-based managed services specialist saw revenues clamber 19 per cent to £46.5m as its purchase of APSU fed into its top line. Net profits, however, fell from £3.2m to £1.1m.