Who is your business energy supplier? How to find out fast

The quickest way to find out who supplies your business energy is to check your latest bill. If you don't have a business gas bill to hand, use Find My Supplier or call the Meter Number Helpline. For business electricity, use the Energy Networks Association postcode tool to find your network operator. They can tell you who your supplier is. 

But why do you need to know? Maybe you've just picked up the keys to a new unit. Or your old broker has disappeared and taken the paperwork with them. If nobody has agreed a contract for your premises, you're probably on deemed rates. Ofgem says these are usually higher than rates you agree yourself. Our guide to deemed and out-of-contract rates explains more. 

It's also good to know who you're with and the rates you're paying when running a business energy comparison. This means you can check whether the rates you're offered are competitive and compare supplier reviews before you switch.

In this guide to finding your business energy supplier… 

• Check your bill: Your supplier's name and contact details appear on every bill. 
• Find your gas supplier: Find My Supplier and a helpline can tell you who it is. 
• Find your electricity supplier: Your local network operator can tell you who supplies you. 
• Just moved in? Our day-one checklist helps you get off deemed rates quickly. 
• Supplier problems and contract end dates: You'll learn what to do if things change. 

How to check your latest business energy bill 

Your supplier's name and contact details appear on every business energy bill. They're also in your online account. Gas and electricity may come from different suppliers, so check both bills. If you can't find a recent bill, try these other ways: 

• Your supplier's online account or app. 
• Emails from your supplier, such as a welcome email or bill reminder. 
• A direct debit on your business bank statement. 
• Your welcome pack or signed contract. 
• Bills for each site, if you run more than one. Each site can have a different supplier. 

While you have your bill, note down your meter supply numbers. Your MPAN is the unique reference number for your electricity supply. Your MPRN is the unique reference number for your gas supply. Our guide to MPAN and MPRN numbers shows where to find them and outlines the differences between supply numbers and meter serial numbers. 

How to find your business gas supplier? 

To find your business gas supplier without a bill, use the free Find My Supplier service with your postcode. You can also call the Meter Number Helpline on 0870 608 1524. 

Both can confirm who your gas supplier is. They can also give you your MPRN, the unique number for your gas meter point. 

Find My Supplier and the helpline cover Great Britain. Businesses in Northern Ireland should contact their gas network operator.

Use the Find My Supplier service 

1. Go to findmysupplier.energy
2. Enter your business postcode and choose your address from the list
3. Note the supplier name and MPRN shown. 

If your unit isn't listed separately, try the building's main address. The tool may not find every address, so call the helpline if you get no result. 

Call the Meter Number Helpline 

If you prefer to speak to someone, call the Meter Number Helpline with your full business address and postcode ready. 

• Number: 0870 608 1524 
• Hours: Monday to Friday, 8:30 am to 5 pm
• Cost: 7p a minute plus your phone company's access charge 

Who supplies electricity to your business premises? 

To find who supplies electricity to your business premises, you need to start with your distribution network operator (DNO). There's no single national electricity lookup like Find My Supplier for gas. Instead, find your network operator from your postcode, then contact them. They can tell you your supplier and your MPAN. 

Your business energy supplier is the licensed company that sells you gas or electricity and sends your bills. It's different from your network operator, which owns the pipes and cables and can't be switched.  

Put simply, your supplier sends the bill. Your network operator looks after the cables. You can change the first, but not the second. 

In a power cut, call 105 for free. It connects you to your local network operator. For supplier questions, use the operator's website or enquiry line instead. 

Use the Energy Networks Association postcode tool 

You can find your business energy supplier by postcode in three steps: 

1. Click your region on the map at the Energy Networks Association website
2. Enter your business postcode
3. Contact the operator shown and ask for your electricity supplier and MPAN. Some operators use online forms rather than phone lines. 

If you have an old business energy bill from a former supplier, this can still be useful. Look at the bottom line of your MPAN. The first two digits are the distributor ID, which identifies your network operator. Use the table below to match it. 

Some new-build sites and business parks sit on an independent distribution network operator (IDNO) network. The same postcode tool will show this. 

Electricity network operators by region 

Find your region in the table below. Then contact the operator listed and ask who supplies your premises. 

Region	Network operator	Distributor ID (MPAN)	Supplier enquiry contact
East of England	UK Power Networks	10	0800 028 4587
East Midlands	National Grid Electricity Distribution	11	0800 096 3080
London	UK Power Networks	12	0800 028 4587
Merseyside, Cheshire, North Wales and North Shropshire	SP Energy Networks	13	0330 10 10 444
West Midlands	National Grid Electricity Distribution	14	0800 096 3080
North East England	Northern Powergrid	15	800 011 3332
North West England	SP Electricity North West (formerly Electricity North West)	16	0330 10 10 444
North Scotland	Scottish and Southern Electricity Networks (SSEN)	17	0800 048 3516
Central and Southern Scotland	SP Energy Networks	18	0330 10 10 444
South East England	UK Power Networks	19	0800 028 4587
Southern England	Scottish and Southern Electricity Networks (SSEN)	20	0800 048 3516
South Wales	National Grid Electricity Distribution	21	0800 096 3080
South West England	National Grid Electricity Distribution	22	0800 096 3080
Yorkshire	Northern Powergrid	23	800 011 3332
Northern Ireland	NIE Networks	n/a	03457 643 643

Network ownership and contact details can change. Always check with the operator for your postcode. 

Moved into new business premises? Your day-one energy checklist 

If you move into new premises and use energy before agreeing a contract, the existing supplier puts you on a deemed contract. The rates in these contracts can be much higher than fixed rates, so switch to a fixed contract as soon as possible. Find out more about deemed and out-of-contract rates. 

On moving in, the first thing to do is take a photo of every meter. Then work through this list: 

1. Take meter readings. Take date-stamped photos of every meter on the day you get the keys. 
2. Find your suppliers. Use the steps above to look up your gas and electricity suppliers separately. 
3. Tell the supplier you've moved in. Give them your readings so you're not billed for the previous occupier's use. 
4. Check your lease. See whether your landlord arranges the energy supply (see the next section). 
5. Ask for your current rates. Ask the supplier what you're paying so you can compare. 
6. Compare and agree a contract. Do this as soon as you can to get off deemed rates. 

Our guide to change of tenancy covers the move-in process in more detail. 

What if your landlord sorts the energy contracts? 

In serviced offices, shared units and some business parks, the landlord may hold the energy contract. They then charge you for what you use. Your lease or service charge breakdown will tell you if this applies. 

If so, ask your landlord who the supplier is and how they recharge you. You may not be able to switch yourself. If you have your own meter, you can usually arrange your own supply, but check your lease first. Our commercial landlords guide explains more. 

What if your supplier has gone bust? 

If your supplier goes out of business, your supply carries on. Ofgem appoints a new supplier, called a Supplier of Last Resort (SoLR), to take on its customers. The new supplier will contact you. You'll typically be on a deemed contract until you agree a new deal. 

• Take meter readings straight away. 
• Keep copies of your final bills from the old supplier. 
• If your broker stopped trading, your supplier hasn't changed. Contact the supplier on your bill, or use the steps above. 

Read what happens when your energy supplier goes bust for more detail. 

How to find your business energy contract end date

Your contract end date is usually on your bill, in your online account or in your contract. If you can't find it, call your supplier and ask for your contract end date and notice period. Your business energy broker should also be able to help.

If your contract ended before a new one is in place, you may be on out-of-contract rates. These can be significantly more expensive than fixed-term contracts. Set a reminder well before your renewal window opens. This can be up to 12 months before your current contract's end date.

Let us find your supplier from your postcode 

Still not sure who your business energy supplier is? You don't need a bill to hand. When you start a comparison, we use industry-held data to find your current supplier and usage from your business address. One of our UK-based energy experts then searches our supplier panel. They call you to talk through your quotes. 

Compare today's rates 

Who is my business energy supplier? FAQs 

Still got questions about how to find your business energy supplier? Check out the answers to our most frequently asked questions.

Who is my business energy supplier? 

Your business energy supplier is the company that sells you gas or electricity and sends your bills. Its name is on every bill. Without a bill, use Find My Supplier for gas, or contact your network operator for electricity. 

Can I find my business energy supplier by postcode? 

Yes. For gas, Find My Supplier works from your postcode. For electricity, your postcode tells you your network operator. They can then tell you who your supplier is. Starting a comparison with us also uses your address to look up your current supplier. 

Is my network operator the same as my energy supplier? 

No. Your supplier sells you energy and sends your bills, and you can switch it. Your network operator owns the cables or pipes in your area. It's fixed by your location, so you can't change it. 

Why does my business have different gas and electricity suppliers? 

Gas and electricity are separate supplies with separate meter numbers. That means they can be with different companies. This is common after a move or a past switch. Check both bills, or look up each supply separately. 

How do I know if I'm on deemed rates? 

If you moved in and used energy without agreeing to a contract, you're likely on a deemed contract. Your bill or supplier can confirm your tariff name. Our guide to deemed and out-of-contract rates explains what this means for you. 

Can I switch supplier if I'm on a deemed contract? 

You can usually leave a deemed contract and agree a new deal without being tied in. Any outstanding debt may delay a switch. Compare quotes as soon as you know who your supplier is. 

What details do I need to find my supplier? 

You need your full business address and postcode. Your MPAN and MPRN help, but they aren't essential. The lookup services can give them to you. See our guide to MPAN and MPRN numbers for more. 

How long does it take to find my business energy supplier? 

If you have a bill, it takes seconds. Find My Supplier usually shows your gas supplier within a few minutes. Electricity can take longer, as some network operators reply through online forms rather than by phone.