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Our Customers

Across Northern Ireland, businesses are enjoying very competitive fuel prices from firmus energy and benefitting from a secure, constant supply of natural gas and our excellent customer service. Discover the advantages connecting can bring you.

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Latest News

firmus energy shortlisted for NI Responsible Company of the Year

Local Gas Company, firmus energy has been shortlisted for this year’s Responsible Company of the Year at the prestigious awards in the Belfast Waterfront on Thursday 30th May organised by Business in the Community. firmus energy has worked hard to become the employer of choice for many in the industry and is also shortlisted in the Wellbeing at Work Award, sponsored by Larne Port.

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What kind of business are you?

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To give you the most accurate information for your town and county, please enter your postcode below.

How do you pay for your natural gas?

By Credit

Do you receive a monthly bill for your energy usage?

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or

With a Pay as You Go card

Do you purchase a top-up card for your energy?

Yes

What kind of business are you?

Small or Medium Business

Small businesses spend about £2,600 or less per bill. Medium businesses spend about £35,000 or less per bill.

or

Large Business


Large businesses spend about £250,000 or less per bill

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Bank details

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SMP Number

This is the number usually at the top right of your bill

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If your account requires 2 signatures, or you are not the bank account holder, please call us first on 0330 024 9000
If you don’t have this number, call our switch team on 0330 024 9000