Utility companies with Crystal Marks

Here is a list of utility firms (gas, electricity, phone and water companies) who have Crystal Marks, together with a link to their website where available. The links below will open in a new browser window.

Bournemouth and West Hampshire Water plc

Bristol Water

Bristol Wessex Billing Services Limited

British Gas

British Gas Service

British Waterways

Cambridge Water Company

Eastern Electricity

East Midlands Electricity

Electricity Supply Board (ESB)

E.ON UK (previously Powergen)

Essex and Suffolk Water

Eurobell (Holdings) PLC

Firmus Energy

GPUPower UK

Hartlepool Water Company

London Electricity

Manweb

Mid Kent Water

Midlands Electricity Board holders.htm#gold

Northern Electric and Gas Limited

Northern Gas Networks

Northern Ireland Electricity

Norweb

Scottish Gas

Scottish Hydro Electric

Scottish Power

SEEBOARD plc

Severn Trent Water Limited

Southern Electric

Southern Water plc

South Staffordshire Water plc

South Wales Electric (SWALEC)

South Western Electricity (SWEB)

South West Water Services

Strathclyde Water Services

Tendring Hundred Water Services Limited

Thames Water Utilities

United Utilities

Welsh Water

Wessex Water

Yorkshire Electricity

Yorkshire Water