Gas, electricity and value-added services

UK business energy suppliers, compared

Independent directory of the major UK business gas and electricity suppliers. Open any supplier for ownership, financials, value-added services, pros and cons, and their own published out-of-contract rates with a link straight through to the supplier's rate page.

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Citizens Advice ranking, October to December 2025

We cite the Citizens Advice non-domestic supplier league for Q4 2025. Lower scores are better, the score reflects complaints per ten thousand customers weighted by severity. Source: citizensadvice.org.uk.

The major UK business energy suppliers

Founded date, current chief executive, headquarters, latest published revenue, complaints ranking, value-added services, and three things each supplier is genuinely good at.

Showing all 16 suppliers

E.ON Next
CA rank #3
E.ON Next Energy Limited
Tier-1 supplier formed when E.ON consolidated its UK retail business with the npower book in 2021. Strong B2B presence across SME and mid-market.
Full overview
Parent group
E.ON SE (Germany)
Chief executive
Chris Norbury
Headquarters
Coventry
Latest revenue
Not published
What they're great at
- Top-three Citizens Advice complaints performance for the period rated.
- 100% renewable electricity by default across most business tariffs.
- Transparent published deemed schedules with regional breakdown.
E.ON Next out-of-contract rates 2026
Effective 10 April 2026. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
37.45p/kWh·300p/day
Regional range 36.5 to 41.1 p/kWh, standing charge 300 p/day in every region
Gas
12.20p/kWh·175p/day
Regional range 11.8 to 12.6 p/kWh, standing charge 175 p/day in every region
Full E.ON Next OOC breakdown
B2B import meters
542,875
Export meters
40,404
MWh / meter / yr
7.52 MWh
Also offersHeat pumpsSolar PVEV chargingInsulation & retrofitHalf-hourly metering
Published OOC rates
British Gas
CA rank #6
British Gas Trading Limited (Business)
The UK's largest energy supplier by customer count. The business arm covers everything from single-site SME to national multi-site portfolios.
Full overview
Parent group
Centrica plc
Chief executive
Chris O'Shea
Headquarters
Windsor
Latest revenue
Not published
What they're great at
- Largest UK energy retailer by customer accounts.
- Nationwide engineer network for service, repair and metering via Centrica.
- Comprehensive multi-site billing and reporting suite for portfolio customers.
British Gas out-of-contract rates 2026
Effective 24 May 2026. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
44.88p/kWh·214.15p/day
Same rate applies to Profile Class 05-08 and half-hourly whole-current meters. Unmetered supply is 47.13 p/kWh with no standing charge. One national price, no regional split.
Gas
15.01p/kWh·182.98p/day
Large non-daily meter (AQ 73,200 kWh and over) is 10.53 p/kWh with an 844.83 p/day standing charge. Daily-metered sites are 11.77 p/kWh.
Full British Gas OOC breakdown
B2B import meters
1,124,267
Export meters
36,389
MWh / meter / yr
5.43 MWh
Also offersHomeCare boiler serviceEV charging (Bonnet partnership)Hive smart-homeSolar PV (Centrica Home Solutions)Heat pump installations
Published OOC rates
Scottish Power
CA rank #7
Scottish Power Energy Retail Limited
UK retail arm of Iberdrola, with a focused commercial business covering SME and mid-market across Great Britain.
Full overview
Parent group
Iberdrola SA (Spain)
Chief executive
Keith Anderson
Headquarters
Glasgow
Revenue 2023
£9.5bn
What they're great at
- Owned by Iberdrola, one of the largest renewables operators in Europe.
- Largest UK onshore-wind generator, providing strong renewables hedge.
- UK-wide 225 p/day deemed gas standing charge, flat across all 14 supply areas rather than regionally loaded.
Scottish Power out-of-contract rates 2025
Effective 1 January 2025. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
34.10p/kWh·230.30p/day
Regional range 33.720 p/kWh (Midlands) to 36.110 p/kWh (Scottish Hydro), on a 203.78 to 270.70 p/day standing charge. Economy 7 is 34.190 p/kWh day and 29.660 p/kWh night at the median.
Gas
10.42p/kWh·225p/day
Regional range 10.270 to 10.650 p/kWh. The 225.00 p/day standing charge is the same in every supply area.
Full Scottish Power OOC breakdown
B2B import meters
324,957
Export meters
16,913
MWh / meter / yr
4.40 MWh
Also offersEV charging networkSolar & battery storage for SMECorporate PPAs from wind farmsHeat pumpsEnergy efficiency consultancy
Published OOC rates
EDF
CA rank #9
EDF Energy Customers Limited
UK retail arm of EDF Group. Strong I&C presence, large nuclear and renewable generation hedge behind the retail book.
Full overview
Parent group
EDF Group (France)
Chief executive
Simone Rossi
Headquarters
London
Latest revenue
Not published
What they're great at
- Largest single-source UK low-carbon generator via the nuclear fleet.
- Strong I&C and large-portfolio capability for half-hourly multi-site clients.
- Migrating to the Kraken platform for SME quoting.
EDF out-of-contract rates 2026
Effective 1 August 2026. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
38.32p/kWh·416.13p/day
One national unit rate. Daily charge is regional and DUoS-banded: 394.62 to 428.36 p/day in Band 1, and 371.82 to 1,142.13 p/day across every band. Unmetered supply is 364.42 p/day at 38.321 p/kWh.
Gas
11.19p/kWh·983.61p/day
One national price, no regional split.
Full EDF OOC breakdown
B2B import meters
698,818
Export meters
11,897
MWh / meter / yr
13.94 MWh
Also offersEV leasing & home charging (Pod Point partnership)Heat pumps (EDF Heat Pumps)Solar PVPowershift demand-side response platformHalf-hourly metering
Published OOC rates
SSE Business
CA rank #11
SSE Energy Solutions
Commercial arm of SSE plc, focused on business customers after SSE's domestic book moved to OVO in 2020.
Full overview
Parent group
SSE plc
Chief executive
Martin Pibworth
Headquarters
Perth
Revenue 2024
£10.5bn (group)
What they're great at
- Pure-play B2B retailer, no domestic distraction.
- Genuinely renewable supply backed by SSE wind and hydro fleet.
- Corporate PPAs available direct from SSE-owned generation.
SSE Business out-of-contract rates 2026
Effective 1 April 2026. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
35.48p/kWh·400p/day
Profile Class 5-8 unrestricted is 33.653 p/kWh with a 984.36 p/day standing charge. Day/night PC2 or PC4 is 36.242 day and 32.312 night.
Gas
9.78p/kWh·325p/day
Monthly-billed EUC band 1 or 2 is 9.313 p/kWh. EUC band 3 is 8.938 p/kWh with a 962.00 p/day standing charge. Bands 4 to 9 are priced individually.
Full SSE Business OOC breakdown
B2B import meters
188,322
Export meters
292
MWh / meter / yr
40.23 MWh
Also offersBehind-the-meter solar & batteryEV charging infrastructurePrivate wire networksHeat & cooling networksBEMS / smart buildings
Published OOC rates
Drax
Drax Energy Solutions Limited (formerly Haven Power)
B2B electricity supplier rebranded from Haven Power in 2020. Renewable-only supply backed by biomass, hydro and pumped storage generation.
Full overview
Parent group
Drax Group plc
Chief executive
Will Gardiner
Headquarters
Selby, North Yorkshire
Revenue 2024
£6.16bn (group)
What they're great at
- Renewable-only electricity supply, REGO-backed by Drax-owned generation.
- Specialist in I&C and half-hourly metered customers.
- Transparent monthly variable-rate schedule published openly.
Drax out-of-contract rates 2026
Effective 1 August 2026. Supplier's own website, checked 21 Aug 2026.
Electricity
36.03p/kWh·300p/day
Profile Class 0 (half-hourly) is 33.93 p/kWh with DUoS fixed and TNUoS residual charges passed through instead of a flat standing charge.
Gas
Not offered
Full Drax OOC breakdown
Also offersRenewable PPAsDemand-side response (Drax Flexible Generation)Corporate sustainability reportingREGO-backed certification
Published OOC rates
TotalEnergies
TotalEnergies Gas & Power Limited
UK B2B retail arm of the French oil-major. Pure-play business supplier with strong gas-trading capability via the parent group.
Full overview
Parent group
TotalEnergies SE (France)
Chief executive
Patrick Pouyanné (group)
Headquarters
Tadworth, Surrey
Latest revenue
Not published
What they're great at
- Pure-play B2B supplier, no domestic distraction.
- Strong gas-trading capability via TotalEnergies parent group.
- Transparent published deemed schedules with prior-period archive.
TotalEnergies out-of-contract rates 2026
Effective 1 June 2026. Supplier's own website, checked 21 Aug 2026.
Electricity
40.28p/kWh·site-specific standing charge
Non-half-hourly day rate is 43.15 p/kWh and night 29.85 p/kWh. Half-hourly anytime is 34.84 p/kWh. Every electricity meter carries a site-specific daily charge shown on the bill.
Gas
10.09p/kWh·256p/day
Sites with an AQ above 732,000 kWh get a site-specific daily standing charge.
Full TotalEnergies OOC breakdown
B2B import meters
127,972
Export meters
570
MWh / meter / yr
100.38 MWh
Also offersSolar PV (Total Solar)EV charging (TotalEnergies Charging Solutions)Corporate carbon-offset packagesMulti-site portfolio managementHalf-hourly data
Published OOC rates
SmartestEnergy
SmartestEnergy Limited
UK C&I supplier with a focus on renewable PPAs and independent generator route-to-market. Owned by Marubeni Corporation.
Full overview
Parent group
Marubeni Corporation (Japan)
Chief executive
Robert Groves
Headquarters
London
Latest revenue
Not published
What they're great at
- Specialist in renewable PPAs and REGO trading.
- Strong independent-generator route-to-market.
- Backed by Marubeni Corporation's $50bn balance sheet.
SmartestEnergy out-of-contract rates 2026
Effective 1 June 2026. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
43.00p/kWh·400p/day
Profile Class 5-8 carries the same 43 p/kWh unit rate on a 500 p/day standing charge. Half-hourly deemed is 49 p/kWh with a regional standing charge from 698.51 to 1,352.68 p/day.
Gas
13.00p/kWh·600p/day
Full SmartestEnergy OOC breakdown
B2B import meters
97,706
Export meters
518
MWh / meter / yr
141.31 MWh
Also offersRenewable PPAsGenerator sleevingREGO tradingHalf-hourly settlement supportDemand-side response
Published OOC rates
Crown Gas & Power
Crown Gas and Power Limited
Independent UK family-owned B2B supplier headquartered in Bury. Multiple-times awarded Best Business Energy Supplier.
Full overview
Parent group
Crown Oil Group (UK family business)
Chief executive
Terry Day
Headquarters
Bury, Greater Manchester
Latest revenue
Not published
What they're great at
- Independent UK family business with long history.
- Multiple-times awarded Best Business Energy Supplier.
- Frequent rate-card updates published openly as PDFs.
Crown Gas & Power out-of-contract rates 2026
Effective 1 August 2026. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
36.25p/kWh·site-specific standing charge
Regional range 35.33 p/kWh (MIDE) to 38.66 p/kWh (HYDE). Half-hourly low voltage runs 32.08 to 36.66 p/kWh. Crown publishes the daily standing charge as site-specific rather than a flat figure.
Gas
9.13p/kWh·site-specific standing charge
Band 2 (73,201 to 293,000 kWh) is 8.834 p/kWh and Band 3 (over 293,001 kWh) is 8.703 p/kWh. Daily standing charge is site-specific and inclusive of an administrative charge.
Full Crown Gas & Power OOC breakdown
Also offersMulti-site account managementDedicated account managersEnergy reportingSmart metering installationRenewable gas (biomethane)
Published OOC rates
Corona Energy
Corona Energy Retail 4 Limited
B2B-focused supplier, owned by Macquarie via Macquarie Corona Energy Holdings. Strong gas heritage with comprehensive band-based pricing.
Full overview
Parent group
Macquarie Group
Chief executive
Neil Mitchell
Headquarters
Watford, Hertfordshire
Latest revenue
Not published
What they're great at
- Long-standing independent B2B supplier with deep gas heritage.
- Comprehensive band-by-band standing charge transparency.
- Macquarie financial backing provides stability.
Corona Energy out-of-contract rates 2026
Effective 1 July 2026. Supplier's own website, checked 21 Aug 2026.
Electricity
39.32p/kWh·314p/day
Half-hourly is 37.58 p/kWh on a 1,174 p/day standing charge. DUoS and TNUoS fixed charges are passed through on top for non-half-hourly meters.
Gas
8.06p/kWh·704p/day
Band 1 standing charge shown. Bands run 704 p/day (Band 1) to 7,854 p/day (Band 5), with Band 6 site-specific.
Full Corona Energy OOC breakdown
Also offersHalf-hourly data servicesOnline portalMulti-site billingBiomethane / green gas certificatesDedicated B2B account management
Published OOC rates
SEFE Energy
SEFE Energy Limited (formerly Gazprom Energy)
UK gas-only B2B specialist. Renamed from Gazprom Energy in late 2022 after the German government took over the parent following Russia sanctions.
Full overview
Parent group
SEFE Securing Energy for Europe GmbH (German government)
Chief executive
Dr Egbert Laege (group)
Headquarters
Manchester
Latest revenue
Not published
What they're great at
- UK gas-supply specialist with deep wholesale capability.
- Competitive gas-only deemed rate around 6.85 p/kWh.
- Now backed by sovereign German state for stability.
SEFE Energy out-of-contract rates 2026
Effective 1 August 2026. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
Not offered
Gas
8.80p/kWh·263p/day
One unit rate across all ten microbusiness bands. Standing charge climbs by band, 263 p/day (Band 1) to 1,078 p/day (Band 10, AQ up to 293,071 kWh). Non-microbusiness sites are site-specific pass-through.
Full SEFE Energy OOC breakdown
Also offersMulti-site gas portfolio managementDedicated account managementOnline customer portalAMR / smart metering for daily-read sites
Published OOC rates
Yü Energy
Yü Energy Retail Limited
AIM-listed Nottingham challenger, fastest-growing UK B2B supplier with revenue up 40% in FY24.
Full overview
Parent group
Yü Group plc
Chief executive
Bobby Kalar
Headquarters
Nottingham
Revenue 2024
£645.5m
What they're great at
- Fastest-growing UK B2B supplier, revenue +40% FY24.
- Around 2.7% UK B2B market share, up from 1.3% two years ago.
- Strong cash position post-Shell hedging deal.
Yü Energy out-of-contract rates 2025
Effective 25 August 2025. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
45.30p/kWh·300p/day
Non-half-hourly prices also apply to half-hourly unmetered supplies. Half-hourly low voltage is regional: 48.2 to 50.4 p/kWh day, 43.3 to 43.8 p/kWh night, on a 2,490 to 3,240 p/day standing charge.
Gas
13.90p/kWh·425p/day
One unit rate across all three bands. Standing charge is 425 p/day for Bands 1 and 2, with a 1,000 p/day minimum on Band 3 (AQ over 732,001 kWh).
Full Yü Energy OOC breakdown
B2B import meters
73,447
Export meters
0
MWh / meter / yr
34.34 MWh
Also offersSmart meter installationWater supplyBroadband (Yu Smart)Dedicated SME portal
Published OOC rates
Pozitive Energy
Pozitive Energy Limited (trading as PE Solutions)
Pure-play B2B specialist offering electricity, gas, water, EV, telecoms and financial services from a Canary Wharf head office.
Full overview
Parent group
Pozitive Energy Limited (independent)
Chief executive
Not published
Headquarters
London (Canary Wharf)
Latest revenue
Not published
What they're great at
- Pure-play B2B specialist.
- Multi-utility offering spanning electricity, gas, water, EV, telecoms and financial services.
- Competitive published base unit rates at 35 p/kWh electricity and 8 p/kWh gas.
B2B import meters
71,613
Export meters
233
MWh / meter / yr
27.84 MWh
Also offersEV charging infrastructureWater supplyTelecoms / connectivityFinancial servicesMulti-utility billing
Published OOC rates
Shell Energy
Shell Energy UK Limited
Shell plc's UK B2B energy arm. Commercial-only supply across SME, mid-market and Industrial & Commercial, with a heavy I&C and large-corporate footprint.
Full overview
Parent group
Shell plc
Chief executive
Not published
Headquarters
London
Latest revenue
Not published
What they're great at
- Backed by Shell plc, one of the world's largest energy companies, with deep wholesale-trading capability.
- Strong I&C and large-corporate offering, including bespoke flex contracts and corporate PPAs.
- Renewable electricity and biomethane / RGGO-backed gas available across business products.
Shell Energy out-of-contract rates 2026
Effective 1 July 2026. Supplier's own website, checked 21 Aug 2026.
Electricity
35.47p/kWh·168p/day
Half-hourly extended supply is 35.081 p/kWh on a 217 p/day standing charge with pass-through availability charges. Shell's separate deemed rate, for move-ins rather than contract roll-off, is 28.312 p/kWh on the same 168 p/day.
Gas
11.04p/kWh·548p/day
Bands 2 and 3 (AQ 73,201 to 732,000) are 11.242 p/kWh on 1,688 p/day, Band 4+ is 11.133 p/kWh on 2,747 p/day. Shell's deemed gas rate is 7.482 p/kWh on 446 p/day.
Full Shell Energy OOC breakdown
Also offersCorporate PPAs (Shell Energy Europe)Shell Recharge EV chargingShell SolarCarbon offset and reportingHalf-hourly metering
Published OOC rates
E
ENGIE
ENGIE Power Limited
French utility ENGIE's UK B2B arm. Focused on Industrial & Commercial supply, energy services and corporate Power Purchase Agreements, with a long-standing position serving large multi-site customers.
Full overview
Parent group
ENGIE SA (France)
Chief executive
Not published
Headquarters
London
Latest revenue
Not published
What they're great at
- Tier-1 European utility, balance-sheet strength backs long-dated I&C contracts.
- Deep corporate-PPA capability, useful for buyers building a Scope 2 reduction plan.
- Wide energy-services portfolio: district energy, EV charging, on-site solar and battery.
ENGIE out-of-contract rates 2026
Effective 1 June 2026. Supplier's own published rate schedule, checked 21 Aug 2026.
Electricity
37.89p/kWh·528p/day
One national rate, effective from 1 June 2026 until further notice. ENGIE publishes a separate half-hourly default schedule and a separate, cheaper deemed schedule for move-ins.
Gas
13.32p/kWh·220p/day
One unit rate across all nine AQ bands. The standing charge climbs with annual quantity, 220 p/day at the bottom to 85,669 p/day at the top.
Full ENGIE OOC breakdown
Also offersCorporate PPAsDistrict heating networksOn-site solar & batteryEV chargingENGIE Impact decarbonisation consulting
Published OOC rates
CE
Conrad Energy
Conrad Energy (Trading) Limited
Independent power producer with a B2B-only electricity retail arm. Supplies half-hourly (Profile Class 0) sites only, with on-site generation and corporate PPAs backed by its own 983MW pipeline.
Full overview
Parent group
I Squared Capital (US)
Chief executive
Tony O'Carroll
Headquarters
Abingdon, Oxfordshire
Revenue 2024
£24.4m
What they're great at
- IPP-backed supplier with 983MW operational and in-construction across battery, solar, peaking gas and synchronous condensers; gives physical hedging capability that pure retailers lack.
- Half-hourly only focus from October 2025 means a dedicated I&C operating model rather than a mass-market retention book.
- Match+ product offers half-hourly REGO matching for clients with serious sustainability reporting requirements.
Conrad Energy out-of-contract rates 2026
Effective 1 July 2026. Supplier's own website, checked 21 Aug 2026.
Electricity
33.51p/kWh·122.41p/day
Night rate (midnight to 7am) is 24.61 p/kWh. LV site-specific bands are 32.05 p/kWh day and HV site-specific 30.64 p/kWh day, on standing charges from 122.31 to 54,904.39 p/day.
Gas
Not offered
Full Conrad Energy OOC breakdown
Also offersBattery storage assetsFlexible peaking generationCorporate Power Purchase Agreements (PPAs)On-site solar PV (zero capex)Match+ half-hourly REGO matching
Published OOC rates

This is a public market reference, not a list of suppliers Purely Energy holds contracts with. Our quoting process runs your consumption profile against the wider UK market, including challenger suppliers that the largest brokers often skip.

Full UK business energy supplier directory

Every UK non-domestic gas and electricity licensee on the Ofgem register, normalised under the trading name your business will actually see on a contract. 120 entities, searchable by trading name, licence holder, parent or company number. 16 of these are covered in depth in the directory above and route there automatically, leaving 104 long-tail suppliers with their own lighter profile page.

Each profile shows the trading name, every Ofgem licence held under that name, contact details and rate-availability status. Where the licence holder is a UK limited company we also publish live business intelligence drawn from Purely Energy's independent research on each supplier: incorporation date and years trading, current ultimate owner, employee headcount, the latest five filed years of turnover, profit and balance-sheet position, and credit risk band. That gives you a single page to assess whether a supplier is large, growing, financially sound and worth inviting into a tender, before you ever pick up the phone.

Built directly from Ofgem's authoritative registers, the list of all electricity licensees including suppliers and the list of all gas licensees including suppliers. Both are the official record of every company licensed by Ofgem to supply non-domestic energy in Great Britain.

Showing 1 to 25 of 120 UK non-domestic suppliers.

Trading name	Licence holder	Fuels	Revenue (£m)	Rate page
100GreenCo. 04194006	GREEN ENERGY (UK) LTD.	Gas + Electricity	-	Quote required	-
arto.energyCo. 09263398	ARTO.ENERGY LTD.	Electricity	-	Quote required	-
Axpo UKCo. 06600942	AXPO UK LTD.	Gas + Electricity	-	Quote required	-
BarbicanPowerCo. 08474516	BARBICAN POWER LTD.	Electricity	-	Quote required	-
BARROW SHIPPING LTD. / Fuels GasCo. 08172858	BARROW SHIPPING LTD.	Gas	-	Quote required	-
BGI Trading LimitedCo. 10971802	BGI TRADING LTD.	Gas + Electricity	-	Quote required	-
BP Gas Marketing LtdCo. 00908982	BP GAS MARKETING LTD.	Gas + Electricity	-	Quote required	-
British Gas business Co. 03078711	BRITISH GAS TRADING LTD.	Gas + Electricity	£14.5bn	Quote required	Profile
Brook Green Trading LtdCo. 09523064	BROOK GREEN TRADING LTD.	Gas + Electricity	-	Quote required	-
Bryt EnergyCo. 10167351	BRYT ENERGY LTD.	Electricity	-	Published	-
Ceres EnergyCo. 06490828	CERES ENERGY LTD.	Gas	-	Quote required	-
Champion EnergyCo. 09256369	FARRINGDON ENERGY LTD.	Electricity	-	Quote required	-
Clear Business (Sinq Power trading as Clear Business)Co. 09284085	SINQ POWER LTD.	Electricity	-	Quote required	-
Clear Business; electricity supplier brand referenced as Sinq Power LimitedCo. 03667643	VERASTAR LTD.	Electricity	-	Quote required	-
Co-operative Energy / Co-op EnergyCo. 06993470	CO-OPERATIVE ENERGY LTD.	Electricity	-	Quote required	-
Conrad Energy Co. 10969329	CONRAD ENERGY (TRADING) LTD.	Gas + Electricity	-	Published	Profile
Constellation UKCo. 09198137	CONSTELLATION GENERATION LTD.	Electricity	-	Quote required	-
Corona Energy 4 licences	4 licence holders	Gas + Electricity	-	Published	Profile
Coulomb Energy Supply LimitedCo. 07488842	COULOMB ENERGY SUPPLY LTD.	Gas + Electricity	-	Quote required	-
Crown Gas & Power 2 licences	2 licence holders	Gas + Electricity	-	Published	Profile
Crown Oil LtdCo. 01315556	CROWN OIL LTD.	Gas	-	Quote required	-
D-ENERGiCo. 10769307	D-ENERGI TRADING LTD.	Electricity	-	Published	-
Data EnergyCo. 02668566	DATA ENERGY MANAGEMENT SERVICES LTD.	Gas	-	Quote required	-
DGP Energy / Delta Gas and PowerCo. 09933244	DGP ENERGY LTD.	Gas + Electricity	-	Quote required	-
Drax Energy Solutions Co. 05893966	DRAX ENERGY SOLUTIONS LTD.	Electricity	£3.4bn	Published	Profile

Page 1 of 5

Data sources

Licence-holder data is taken from the Ofgem all-licensees register and re-checked against Companies House and the supplier's own website. The two source registers are published and maintained by Ofgem, the Office of Gas and Electricity Markets:

Trading names, contact details and out-of-contract rate information change frequently. Always verify on the supplier's own website before relying on a number, rate or renewal date.

Who is the biggest UK electricity supplier?

Two league tables built from Elexon's settlement data: the largest domestic suppliers (households) and the largest commercial suppliers (the non-domestic market Purely serves). Ranked by electricity meter points for 2025 Q1, refreshed automatically each quarter as Elexon publishes.

Largest commercial electricity suppliers

Non-domestic (business and I&C) supply, by meter points.

By electricity import meter points, 2025 Q1. Source: Elexon BSC Number of Metering Systems.

1
EDF23.2%
848,690 meter points · 9,834,649 MWh
2
British Gas18.8%
689,027 meter points · 3,830,681 MWh
3
E.ON Next12.1%
444,084 meter points · 5,519,167 MWh
4
OEL
Octopus Energy Limited11.2%
408,910 meter points · 1,072,795 MWh
5
OE
OVO Energy8.1%
297,995 meter points · 371,359 MWh
6
Scottish Power7.2%
264,742 meter points · 795,877 MWh
7
SSE Business6.1%
224,065 meter points · 2,541,113 MWh
8
TG&
TotalEnergies Gas & Power3.5%
126,998 meter points · 3,882,749 MWh

Non-domestic = all half-hourly sites plus Profile Class 3 to 8 non-half-hourly meters (the businesses Purely serves). Ranked by meter points (customer sites), not revenue or official market value. Share is of the named suppliers shown; Elexon's sub-threshold “Other Supplier” aggregate is excluded.

Largest domestic electricity suppliers

Household supply, by meter points.

By electricity import meter points, 2025 Q1. Source: Elexon BSC Number of Metering Systems.

1
OEL
Octopus Energy Limited24.7%
6,899,449 meter points · 7,991,418 MWh
2
British Gas20.6%
5,773,421 meter points · 5,492,944 MWh
3
E.ON Next16.9%
4,713,181 meter points · 4,871,514 MWh
4
OE
OVO Energy12.2%
3,421,694 meter points · 3,461,297 MWh
5
EDF10%
2,805,676 meter points · 3,114,696 MWh
6
Scottish Power8.1%
2,262,012 meter points · 2,311,471 MWh
7
EPS
Electricity Plus Supply Ltd3.3%
914,852 meter points · 1,045,046 MWh
8
UEL
Utilita Energy Ltd2.8%
792,567 meter points · 736,070 MWh

Domestic = Profile Class 1 and 2 non-half-hourly plus domestic unmetered supply. Ranked by meter points (customer sites), not revenue or official market value. Share is of the named suppliers shown; Elexon's sub-threshold “Other Supplier” aggregate is excluded.

Who is the biggest UK gas supplier?

Gas is not as open as electricity. Electricity supplier volumes are published quarterly by Elexon (the league tables above), but named-supplier gas market share sits with Xoserve, the gas market's central data body, behind a Data Services Contract, so there is no public business-gas league table to rank. We will not invent one.

What the public data does show

Domestic gas: Ofgem publishes named-supplier domestic market share. British Gas has long been the largest domestic gas supplier. See Ofgem's retail market indicators.
Business gas: no free named-supplier dataset exists. The major suppliers by business gas are the same large players you see in the electricity tables (British Gas, Corona Energy, SEFE, Crown Gas & Power, TotalEnergies), but a ranked share is not publicly published.
Live system: National Gas publishes where gas physically enters the network in real time, shown opposite.

Need a business gas price instead of a league table? Get a tailored gas quote.

Live GB gas system

Where gas is physically entering the National Transmission System right now, by entry point. Wholesale system data, not supplier share.

Live

UK supplier electricity market share

Compare suppliers by their non-domestic (B2B) import meters, export meters, and average MWh per meter for FY24/25, sourced from Elexon's quarterly Energy Volumes and Number of Metering Systems datasets. Domestic-only volumes are filtered out so the picture matches what a business buyer actually sees in the market.

Out-of-contract vs fixed-rate, run the numbers

Sites that roll past their contract end date drop onto deemed or out-of-contract rates, which can sit well above current fixed offers. Enter your actual rate to see the difference, or read the out-of-contract rates for all 16 suppliers, compared.

Out-of-contract vs fixed-rate savings

Enter your current out-of-contract rate (from your bill or the supplier's deemed rates page) and a fixed-rate scenario to compare. We do not invent supplier rates, you enter the figures you have.

Your current out-of-contract ratesUnit rate

p/kWh

Standing charge

p/day

Annual consumption

kWh

Fixed-rate contract scenarioFixed unit rate

p/kWh

Fixed standing charge

p/day

The defaults here are illustrative only. Your actual fixed-rate offer depends on wholesale price, contract length, supplier margin and consumption profile. Get a real quote for the numbers that apply to you.

Out-of-contract annual

£14,310

Fixed-rate annual

£9,764

Annual saving

£4,546

32% lower

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Skip the supplier-by-supplier slog

Send us your usage and we will run the wider UK market against your meter, then come back with the best fit. Every quote shows the wholesale price, non-commodity costs, supplier margin and our margin separately.

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UK business energy suppliers, compared

Citizens Advice ranking, October to December 2025

The major UK business energy suppliers

What they're great at

E.ON Next out-of-contract rates 2026

What they're great at

British Gas out-of-contract rates 2026

What they're great at

Scottish Power out-of-contract rates 2025

What they're great at

EDF out-of-contract rates 2026

What they're great at

SSE Business out-of-contract rates 2026

What they're great at

Drax out-of-contract rates 2026

What they're great at

TotalEnergies out-of-contract rates 2026

What they're great at

SmartestEnergy out-of-contract rates 2026

What they're great at

Crown Gas & Power out-of-contract rates 2026

What they're great at

Corona Energy out-of-contract rates 2026

What they're great at

SEFE Energy out-of-contract rates 2026

What they're great at

Yü Energy out-of-contract rates 2025

What they're great at

What they're great at

Shell Energy out-of-contract rates 2026

What they're great at

ENGIE out-of-contract rates 2026

What they're great at

Conrad Energy out-of-contract rates 2026

Full UK business energy supplier directory

Data sources

Who is the biggest UK electricity supplier?

Largest commercial electricity suppliers

Largest domestic electricity suppliers

Who is the biggest UK gas supplier?

What the public data does show

Live GB gas system

UK supplier electricity market share

Out-of-contract vs fixed-rate, run the numbers

Out-of-contract vs fixed-rate savings

Skip the supplier-by-supplier slog