Scottish Power is a major British energy firm, supplying both gas and electricity throughout the entirety of the country. The company itself is a Glasgow-based subsidiary of the Spanish energy firm Iberdrola, who acquired the firm in 2006.
OVO is a Bristol-based company which provides energy to domestic and business addresses throughout the United Kingdom.
SSE is a large energy company which is listed on the London Stock Exchange, they are one of the ‘big six’ suppliers in the United Kingdom supplying millions with gas and electricity.
Npower is one of the ‘big six’ energy suppliers in the United Kingdom, serving approximately 6.5 million customers across the country with gas and electricity.
E.ON SE is a European energy supplier which operates in over 30 countries, with several million customers within the UK market holding gas and electricity accounts with the provider.
EDF Energy plc is a French government owned energy company dedicated to the supply of gas and electricity to homes and businesses in the UK.
British Gas is the UK’s largest energy supplier, empowering 12 million homes in the country with gas and electricity.