Participating Suppliers

The following energy suppliers support the TPI Code of Practice:


Millions of people get their power and gas from E.ON at home or at work. E.ON is one of the UK’s leading energy companies, and part of E.ON group, one of the world’s biggest investor-owned companies in that field. As well as selling power and gas, E.ON generates electricity, and are involved in oil and gas exploration, as well as developing gas storage. Around 12,000 people work for E.ON in the UK, and E.ON employs more than 79,000 around the world.

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For press enquiries contact:

Call us on 02476 192000 or Email us at

For sales enquiries contact:

0800 051 5517

For customer services contact:

0345 302 4315