BT is made up of four principal lines of business: BT Global Services, Openreach, BT Retail and BT Wholesale. For more information about the different businesses in the BT group, go to group businesses.

British Telecommunications plc (BT) is a wholly-owned subsidiary of BT Group plc and encompasses virtually all businesses and assets of the BT Group. BT Group plc is listed on stock exchanges in London and New York.
BT Group plc
Registered Office: 81 Newgate Street, London, EC1A 7AJ
Registered in England and Wales No. 4190816
For corporate enquiries e-mail: btgroup@bt.com