The easiest way to find out who supplies the gas and electricity to your house is to check a recent energy bill, where you'll find the name and contact details of your supplier. If you've just moved home or you don't have a gas or electric bill handy, there are other ways to identify your utility company.

In the 2026 energy landscape, knowing your supplier is more critical than ever; with the Q1 2026 Energy Price Cap set at £1,758 for a typical household - and electricity unit rates at 27.69p/kWh - identifying your provider is the first step in ensuring you aren't stuck on an expensive default tariff. By knowing your supplier, you can quickly verify if you could save by switching to Direct Debit, which remains cheaper than 'Standard Credit' payments.

When you don't have an energy bill to hand, the next best way to find your energy supplier is by contacting your local gas or electricity distribution network operator (DNO). A DNO is a company that runs the local gas pipes and cables that serve your home.

Following the significant market volatility of the early 2020s, many households were moved to new providers after their previous suppliers went bust. If you are unsure who your 'Supplier of Last Resort' is, your DNO is your best point of contact to confirm who has officially taken over your account.

You can find your gas supplier details online via the Find My Supplier portal, or identify your electricity DNO by entering your postcode at Power Cut 105.

You wouldn't normally need to contact a DNO as they don't bill you or supply your electricity (your supplier does that), but it's handy to know who your network operators are in case you want to change a gas/electricity connection to the mains, or to find out the name of your supplier.

Who is my Electricity Supplier?

To find out who supplies the electricity to your home, use the table below to contact your local electricity distribution network operator (DNO). Each DNO covers a separate geographical region.

Another way to find your DNO is by using the Energy Networks Association search tool instead of the table above (you'll just need to enter your post code).

Who is my Gas Supplier?

There are three options for finding out which utility company supplies your gas:

• Use the online service Find My Supplier

• Call the Meter Point Administration Service to get details of your gas supplier (and get your Meter Point Reference Number, or MPRN, if you need it)

• Contact your gas distribution network (find contact details in the table below)

To get the most accurate information from the Find My Supplier service, you'll need the house number, street name and post code of the property. Below is the list of Gas Distribution Networks (GDNs) in the UK, along with links to their websites and their contact phone numbers.

The eight gas distribution networks are owned by Cadent, Northern Gas Networks, SGN and Wales & West Utilities. Their coverage is shown on the map below.

The Find My Supplier post code search tool not only tells you your gas supplier, but also your Meter Point Reference Number (MPRN) and your gas transporter.