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.

For further information why not visit our Web Site

For press enquiries contact:

02476 192000 or Email us @

For sales enquiries contact:

0800 051 5517

For customer services contact:

0345 302 4315

Important Message

  • From the 31 October 2016 EON have agreed with the external TPI Code Panel and Code Manager that they will cease to manage the code. We will continue to operate a Code of Practice for all our participating TPIs however the governance of our code will be managed internally within a newly implemented governance framework.
  • We have not taken this decision lightly however we are mindful of OFGEMs intention of moving to a more principles based approach to regulation.
  • EON are now evolving our approach to fall in line with OFGEMs new principles based approach, and in the coming months we will evolve the code to be a more principles based code and define a monitoring framework to reflect this code and provide assurance against the key principles we believe are key to compliant selling and treating our customers fairly.
  • For our TPI’s this will not mean any change in terms of the way we monitor, however this will move from a prescriptive to principles based approach. EONs intentions for what the code will deliver will not change, our commitment to our B2B customers remains at the forefront of our focus.
  • We will continue to have an process in place whereby any queries, concerns or issues can be raised as they previously would have been to the external Code Manager, and these will be dealt with expediently and in a fair and consistent manner.
  • Over the coming months this external website will transition to an internal more interactive TPI ‘hub’ that will bring value to both our TPI’s and customers alike – In the interim any queries can be directed to our mailbox -
  • We will update this message as we transition our code and governance, and assure our TPI’s of our continued support in identifying and implementing best practice ways of working in line with regulatory requirements.