The voice of the networks

Who’s my energy supplier or network operator?

Your energy network operator can tell you who your energy supplier is, if you're unsure or just don't know.

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You can choose who supplies your energy. This company is known as your energy supplier and they bill you for the energy you use. If you're not sure who your energy supplier is, your energy network operator can tell you. Use this service to find out who they are.

Enter your postcode

Type each part of your postcode below, splitting it correctly across the two boxes.

Customers in the Republic of Ireland should contact ESB Networks for electricity and Gas Networks Ireland for gas. We don't save your postcode search information.

Or, find your network operator using our maps

Click or tap the network type and then your region. Click or tap the logo to visit the operator's website.