About Eon

Eon is a wholly-owned subsidiary of Eon, a German company. The company is one of the largest suppliers of gas and electricity to homes in the UK.

Eon was formerly known as Powergen, but took on the name of its parent company in December 2007.

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About Eon Group

Eon Group operates in the UK, America, Austria, Bulgaria, Czech Republic, Denmark, Finland, Hungary, Italy, Netherlands, Poland, Romania, Slovakia, Spain and Sweden. It is the world's largest investor-owned electricity and gas company.

Contact Information

Contact number for customers moving home - 0345 303 3020

Contact number for questions about your bill - 0345 052 0000

Contact number for prepayment customers - 0345 303 3010

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You can call us on 0800 410 1149 or 01259 220 235.

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Energy Customer Satisfaction Results

Tired of poor customer service from your energy supplier? The results o four 2018 Which? energy satisfaciton survey reveal how customers rate 31 gas and electricity suppliers in Great Britain. Use them to help find the best energy company for you.

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About Which? Switch

Which? Switch provides consumers with a transparent and impartial way to compare energy tariffs and find the best gas and electricity provider for your needs.

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