Brokers of Tomato Energy business customers

We’re transferring business energy customers over to us from Tomato Energy. Here are some questions and answers for you as their energy brokers.

When Tomato Energy stopped trading in November 2025, the industry regulator, Ofgem, asked British Gas to take over the energy supply to your business. 

What happens next?

We’ll need to get some information from Tomato Energy and their administrators. This may mean that things a little longer than usual to get sorted.

We’ve published a list of frequently asked questions below. We’ll keep this list updated regularly. This is the same information that our customer service team will have.

If you have any questions, energy brokers of Tomato Energy business customers can reach to our expert team by using this email address: bdmbrokersupport@britishgas.co.uk.

Advice and guidance is also available on the Ofgem website for non-domestic customers.

Frequently asked questions

Last updated 12 November 2025

What's happening to my energy supply?

Why has British Gas started supplying my business customers?

Tomato Energy have stopped trading and Ofgem have appointed us to be your business customers' energy supplier. We understand that this can all be a bit unsettling for our shared customers, so we’re writing to let them know they’re in safe hands.

Will Tomato Energy business customer lose gas or electricity supply?

No, energy supply will continue uninterrupted throughout the transfer process.

When will my Tomato Energy customer join British Gas?

Tomato Energy business customers moved to British Gas on 9 November 2025. We'll contact the customer when their new accounts are fully set up. This will take up to 21 days.

As an energy broker, do I need to do anything?

As your customer’s energy broker there’s nothing for you to do. For regulatory reasons, we need to contact your customers directly. We suggest all Tomato Energy business customer do the following:

  • Provide a meter reading
  • Choose a password for their new online account. We'll send customers an email with a link when their online account is ready

Will my Tomato Energy business account numbers change?

Yes, all account reference numbers will change – Tomato Energy will close the old account and we’ll set up customers with a new one with British Gas.

How do I contact you?

Once we've set up customers’ new British Gas account, we'll write to your customers to let them know when their new account is ready, and how to get in touch with us.

Billing and payments

What will happen to any credit on my customers’ Tomato Energy account?

If customers have any credit after the final bill has been calculated, Tomato Energy will transfer it to their British Gas account. Customers will see the credit shown on their first British Gas bill.

What if customers have outstanding payments or debts with Tomato Energy?

We’re working closely with the relevant parties to confirm how any outstanding balances will be handled. It may take a few weeks for the process to be agreed. Once this is finalised, either we or the appointed administrator will contact customers with the next steps.

Will my customers’ energy prices change?

Yes, when we set up customers’ new accounts they will be on our “deemed” prices. This means customers are free to switch at any time. Business customers can choose from our full range of great priced energy plans.

What should customers do with their existing Direct Debit payments?

Customers need to keep their current Direct Debit set up in place. These will be transfer to their new British Gas accounts. The only difference is that it will say 'British Gas Business' on customers’ bank/building society statement.

If customers don't pay by Direct Debit but would like to, they will be able to set up a Direct Debit through your online account. We'll be in touch when this is ready for them.

Switching

What if my business customer is about to move out of their business premises, how do I close their account?

Their account will need to be set up on our system before we can close your customer’s business account and send them a final bill. Once everything is set up, we'll write to your customers with details of their British Gas account and how to let us know about their move.

If your business customer has already moved, and we've not been in touch with them yet, please contact Tomato Energy who will close the account and send the customer a final bill.

My business customer has started switching to another supplier, will my transfer still go ahead?

Yes, the transfer should go ahead as normal, and the customer will hear from their new supplier. If not, the customer can start your switch again five days after your new British Gas account is set up.

There are some circumstances when your switch may not go ahead. This could be because the customer is in a contract, or has an outstanding balance on their account.