14. Dimension Data

Key points

Revenue: £258m (+1%)

Net profit: 1.1%

Staff: 621

This global Cisco partner hasn't filed any new accounts for its principal UK arm, Dimension Data Network Services Limited, since July 2017, meaning we've had to recycle figures from last year's Top VARs. For its year to 30 September 2016, net profits shrank from £8.2m to £2.9m on revenues that inched up one per cent to £258m. It recently discontinued its Advanced Infrastructure (DDAI) arm in the UK, which had a £30m turnover. South Africa-based Dimension Data turned over $11.7bn globally in the 18 months to 31 March 2018, but Japanese parent NTT is in the process of combining it with its other companies in a new giant organisation dubbed NTT Inc.