Electricity and gas supplier

ENGIE: contact, login and rates

Q: What is the ENGIE business phone number?

New business sales: 0333 666 0276 (Monday to Thursday 09.00 to 17.00, Friday 08.30 to 16.30). Existing customers: 0800 130 3600 (Mon-Thurs: 9am-5pm | Fri: 8:30am-12pm). Large Business customers (Query Hub): 0333 666 0279. Sales team, as shown on deemed rates page: 0333 666 0276 (Mon -Thurs 8:30am-5pm | Fri: 8:30am-4pm). Gas emergency: 0800 111 999 (24hr). Numbers taken from ENGIE's official contact page, checked 12 September 2026.

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

Facts checked against official sources on 12 September 2026

New business sales 0333 666 0276

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ENGIE supplies electricity and gas to UK businesses through ENGIE Power Limited and ENGIE Gas Limited, part of ENGIE SA, and is based in Leeds. It says it supplies 17,000 business customers of all sizes and specialises in industrial and commercial contracts. Its supply companies were called GDF SUEZ Marketing Ltd and GDF SUEZ Sales Ltd until 2016.

Worth knowing: ENGIE left UK household energy supply in January 2020, when it sold about 70,000 home customers to Octopus Energy. Its business energy supply was not affected and continues.

ENGIE business contact numbers and login

New business sales 0333 666 0276 Monday to Thursday 09.00 to 17.00, Friday 08.30 to 16.30

Existing customers 0800 130 3600 Mon-Thurs: 9am-5pm | Fri: 8:30am-12pm

Large Business customers (Query Hub) 0333 666 0279

Sales team, as shown on deemed rates page 0333 666 0276 Mon -Thurs 8:30am-5pm | Fri: 8:30am-4pm

Gas emergency 0800 111 999 24hr

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 ENGIE. Numbers and links are taken from ENGIE's own website and were checked on 12 September 2026.

About ENGIE

Status	Trading
Supplies	Electricity and gas
Business customers	Microbusinesses, Small and medium businesses, Corporate, Industrial and commercial, Public sector
Owned by	ENGIE SA
Supplying company	ENGIE Power Limited (electricity); ENGIE Gas Limited (gas)
Company number	04236804 (ENGIE Power Limited); 03814495 (ENGIE Gas Limited) on Companies House
Energy Ombudsman	Yes, refers eligible complaints
On our comparison panel	No
Website	engie.co.uk

ENGIE has services for micro, small, enterprise and large businesses, and says it specialises in industrial and commercial energy supply contracts.

ENGIE business energy products

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

Guard™ (fixed, inclusive of third-party charges)
Simple™ (single unit rate, no standing charge; gas only)
Balance™ (network charges fixed, government charges passed through)
Freedom™ (all third-party charges at cost)
Market Choice (flexible)
Daily Flex (Electricity)
Simple Flex (Electricity)
Day Ahead (Gas)
Fixed Price
Green Power (100% renewable electricity)
Green Gas (RGGO certified)
Power Purchase Agreements

ENGIE deemed and out-of-contract rates

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

ENGIE publishes deemed rates and 'Default' (out-of-contract) rates as dated PDFs, with separate files for gas, non-half-hourly electricity and half-hourly electricity. The files available when we checked in September 2026 included rates effective from 1 June 2026.

See ENGIE'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.

ENGIE: key facts and recent news

In January 2020 ENGIE sold its UK household supply business, about 70,000 customers, to Octopus Energy so it could focus on business customers. solarpowerportal.co.uk · Engie exits uk domestic supply market in deal with octopus energy
ENGIE UK says it supplies 17,000 business customers of all sizes. engie.co.uk · About
ENGIE completed its purchase of electricity distributor UK Power Networks in May 2026, making the UK its second-largest country of operations. engie.com · United kingdom
The supply companies were renamed from GDF SUEZ Marketing Ltd and GDF SUEZ Sales Ltd to ENGIE Power Ltd and ENGIE Gas Ltd in January 2016. Companies House
ENGIE signed a 10-year biomethane supply agreement with PepsiCo, described as the first of its kind in the UK. engie.com · United kingdom

ENGIE and energy brokers

ENGIE works with brokers and publishes a list of the consultants and partners it works with. Its complaints page explains how microbusinesses can take a dispute with a broker to the Energy Ombudsman.

Switching from ENGIE

You can usually switch away from ENGIE 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 ENGIE 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.
Agree a new contract. Your new supplier handles the switch, and your supply isn't interrupted.

Compare prices for your business

ENGIE FAQs

What is the ENGIE business phone number?

New business sales: 0333 666 0276 (Monday to Thursday 09.00 to 17.00, Friday 08.30 to 16.30). Existing customers: 0800 130 3600 (Mon-Thurs: 9am-5pm | Fri: 8:30am-12pm). Large Business customers (Query Hub): 0333 666 0279. Sales team, as shown on deemed rates page: 0333 666 0276 (Mon -Thurs 8:30am-5pm | Fri: 8:30am-4pm). Gas emergency: 0800 111 999 (24hr). Numbers taken from ENGIE's official contact page, checked 12 September 2026.

How do I log in to my ENGIE business account?

You can log in to your ENGIE 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 ENGIE?

ENGIE SA. Contracts are with ENGIE Power Limited (electricity); ENGIE Gas Limited (gas) (company number 04236804 (ENGIE Power Limited); 03814495 (ENGIE Gas Limited)).

What are ENGIE's out-of-contract rates?

ENGIE 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 ENGIE's published rates.

Can I complain about ENGIE to the Energy Ombudsman?

Yes. ENGIE'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 ENGIE?

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 ENGIE's official website, Companies House, Ofgem and the parent company's published reports and announcements, checked on 12 September 2026.

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