49. Maintel

Revenue: £90m (-13.3%)

Staff: N/A

Maintel has had another challenging year this year, seeing a 13 per cent revenue drop and falling down the ranking.

The comms specialist defined this as a year of transition on the road to becoming a cloud-focused MSP, with managed services contributing £24.6m towards its total revenue.

London-HQ Maintel cites strong momentum in the public and private sectors for its cloud offering, but does not break out cloud revenue.