Electricity and gas supplier

British Gas Business: contact, login and rates

Q: What is the British Gas business phone number?

Sales and customer service: 0333 202 9766 (We’re open 8am to 6pm, Monday to Friday.). Numbers taken from British Gas's official contact page, checked 12 September 2026.

Phone numbers, online account login, out-of-contract rates and who owns the company, checked against British Gas's own website.

Facts checked against official sources on 12 September 2026

Sales and customer service 0333 202 9766

1We find your meter
2You see live prices
3You pick a deal

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British Gas Business is the business energy arm of British Gas, owned by Centrica plc. It supplies electricity and gas to businesses of all sizes, from microbusinesses to corporate customers, through British Gas Trading Limited. Its range includes fixed price plans, renewable electricity options and the online-only British Gas Lite service.

British Gas business contact numbers and login

Sales and customer service 0333 202 9766 We’re open 8am to 6pm, Monday to Friday.

Emergencies are not handled by your supplier. If you smell gas, call the National Gas Emergency Service on 0800 111 999. For a power cut, call 105 to reach your local network operator.

We are not British Gas Business. Numbers and links are taken from British Gas's own website and were checked on 12 September 2026.

About British Gas Business

Status	Trading
Supplies	Electricity and gas
Business customers	Microbusinesses, Small and medium businesses, Corporate
Owned by	Centrica plc
Supplying company	British Gas Trading Limited
Company number	03078711 on Companies House
Energy Ombudsman	Yes, refers eligible complaints
On our comparison panel	Yes
Website	britishgas.co.uk

British Gas business energy products

These are the business products British Gas describes on its own website. Availability depends on your business size, meter and region.

Fixed Price Energy Plan
Renewable Business Energy
Zero Carbon Business electricity
100% Natural Renewable Electricity
Flex Advantage
Commercial Landlord Energy
Fixed Solar Saver
PeakSave for Business
Standard Variable Rates
British Gas Lite

British Gas deemed and out-of-contract rates

If your fixed contract ends without a new one in place, or you move into premises supplied by British Gas without agreeing a contract, you'll pay its deemed or out-of-contract rates. These are typically well above fixed contract prices.

British Gas publishes its deemed rates and out-of-contract (variable) rates as PDFs on its website. When we checked in September 2026, the business electricity deemed rates in use applied from 24 May 2026.

See British Gas's current published rates

For context: in Q2 2026, UK businesses using up to 20,000 kWh of electricity a year paid an average of 38.36p per kWh all-in, which spreads the standing charge across every unit and includes the Climate Change Levy. A bill shows a unit rate plus a daily standing charge, so use our cost calculator to turn your rates into an all-in figure before comparing. Prices for every business size.

British Gas: key facts and recent news

1995British Gas Trading Limited (company 03078711) was incorporated on 6 July 1995. Companies House lists GB Gas Holdings Limited as its controlling company, and British Gas Business names Centrica as its parent. Companies House
2025Centrica reported that business customer sites for British Gas Business and Bord Gáis Energy grew 1% in 2025, and that 44% of SME business customers had moved onto its Ignition platform. centrica.com · Centrica plc 2025 preliminary results announcement
May 2026The business electricity deemed contract charges in use in September 2026 applied to electricity supplied from 24 May 2026. Deemed and variable rates are published as PDFs. britishgas.co.uk · Business electricity deemed rates
May 2026Ofgem announced a settlement with British Gas, including a £20m Voluntary Redress Fund payment, over prepayment meters installed without consent. This concerned domestic customers, not business customers. Ofgem

British Gas and energy brokers

British Gas Business works with brokers and consultants. It tells customers that a broker may charge a fee or build their income into the contract, and that a signed letter of authority is needed.

Switching from British Gas

You can usually switch away from British Gas when your fixed contract ends, and at any time if you're on deemed or out-of-contract rates. Check your contract for any notice you need to give so you don't roll onto renewal prices.

Find your contract end date on a recent British Gas bill or in your online account.
Check whether you need to give written notice, and by when.
Compare electricity and gas prices for your premises, including from British Gas.
Agree a new contract. Your new supplier handles the switch, and your supply isn't interrupted.

Compare prices for your business

British Gas FAQs

What is the British Gas business phone number?

Sales and customer service: 0333 202 9766 (We’re open 8am to 6pm, Monday to Friday.). Numbers taken from British Gas's official contact page, checked 12 September 2026.

How do I log in to my British Gas business account?

You can log in to your British Gas business account on the supplier's website. If you haven't registered yet, you'll usually need your account number from a bill.

Who owns British Gas?

Centrica plc. Contracts are with British Gas Trading Limited (company number 03078711).

What are British Gas's out-of-contract rates?

British Gas publishes its deemed and out-of-contract rates on its website. These rates are usually much higher than fixed contract prices, so compare before your contract ends. See British Gas's published rates.

Can I complain about British Gas to the Energy Ombudsman?

Yes. British Gas's complaints information refers eligible business customers to the Energy Ombudsman. You normally need to complain to the supplier first and wait eight weeks, or receive a deadlock letter, before the Ombudsman can look at it.

Can I switch away from British Gas?

Yes, usually at the end of your contract, or at any time if you're out of contract or on deemed rates. Check your contract for notice requirements so you don't roll onto renewal rates.

Sources

Facts on this page come from British Gas's official website, Companies House, Ofgem and the parent company's published reports and announcements, checked on 12 September 2026.

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