The voice of the networks

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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, you'll need to contact your energy network operator who can help you to find out.

To find your energy network operator, 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.

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.