Tunstall, Byers and Co
of Donacaster
1957 Company incorporated to acquire the radio and television dealers, H. W. Evans and Sons Ltd.
1977 Company renamed Tunstall Byers Holdings Ltd
1981 Tunstall Byers Holdings Ltd was renamed Tunstall Telecom Holdings Ltd
1983 Renamed Tungsten Telecom Group Plc
1986 Renamed Tungsten Group Plc