Revenue: £1.1bn (+10%)
Net profit margin: N/A Staff: N/A
BT's reseller brands, including BT Business Direct and Engage IT, turned over more than £500m before the telco stopped reporting their individual numbers and rolled them into its wider group.
It's now an impossible task to quantify the size of BT's activities, so we have simply added on 10 per cent to last year's finger-in-the-air estimate of £1bn.
The wider BT Group saw revenue fall one per cent to £23.4bn in its fiscal 2019.