Centrica is a British utility company with headquarters in Windsor, Berkshire. Founded in 1997, it provides energy services and solutions to consumers throughout the UK and Ireland. The company operates through several subsidiary brands, namely British Gas and Bord Gáis Energy. British Gas is the UK’s largest domestic supplier of gas with over 7 million customers, and it’s also one of the largest suppliers of electricity. Bord Gáis Energy is the largest gas and second-largest electricity supplier in the Republic of Ireland with over 500,000 customers. Centrica stock is listed on the London Stock Exchange and is a constituent of the FTSE 250 index. Start spread betting or trading CFDs on our Centrica share price.