UK business energy suppliers, compared

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 1 October 2026. Supplier's own published rate schedule, checked 3 Nov 2026.

  Electricity

  41.90p/kWh·300p/day

  Regional range 40.9 to 46 p/kWh (Northern Scotland highest), standing charge 300 p/day in every region. Economy 7 is 45.1 to 50.5 p/kWh day and 31.0 to 37.8 p/kWh night. The table is dated 4 September 2026 inside the scheme effective 1 October 2026.

  Gas

  13.90p/kWh·175p/day

  Regional range 13.4 to 14.4 p/kWh, standing charge 175 p/day in every region. The table is dated 4 September 2026 inside the scheme effective 1 October 2026.

  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 3 Nov 2026.

  Electricity

  40.65p/kWh·203.88p/day

  The same 203.88 p/day applies in every TCR band. Low voltage network meters pay 38.46 p/kWh. One national price.

  Gas

  10.54p/kWh·182.60p/day

  The 73,200 to 732,000 kWh band pays 9.09 p/kWh on 842.57 p/day. One national price.

  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 2026

  Effective 1 October 2026. Supplier's own published rate schedule, checked 3 Nov 2026.

  Electricity

  29.45p/kWh·159.28p/day

  Regional range 28.920 p/kWh (East Midlands) to 31.360 p/kWh (Manweb), on 140.27 to 196.97 p/day. Economy 7 is 29.315 p/kWh day and 23.635 p/kWh night at the median.

  Gas

  7.21p/kWh·100p/day

  Regional range 7.040 to 7.470 p/kWh. The 100 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 3 Nov 2026.

  Electricity

  53.38p/kWh·300p/day

  Not paying by Direct Debit: 54.38 p/kWh on 310 p/day. Pay As You Go: 61.68 p/kWh on 250 p/day. Economy 7 by Direct Debit is 54.54 p/kWh day and 48.97 p/kWh night on 300 p/day. One national price.

  Gas

  18.91p/kWh·300p/day

  Not paying by Direct Debit: 19.91 p/kWh on 310 p/day. Pay As You Go: 23.56 p/kWh on 250 p/day. One national price.

  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 November 2026. Supplier's own published rate schedule, checked 3 Nov 2026.

  Electricity

  45.94p/kWh·400p/day

  Profile Class 5-8 unrestricted is 43.896 p/kWh on 984.36 p/day. Day/night (PC2 or PC4) is 48.029 p/kWh day and 36.138 p/kWh night on 400 p/day.

  Gas

  14.97p/kWh·325p/day

  Monthly-billed EUC band 1 or 2 is 14.458 p/kWh on the same 325 p/day. EUC band 3 is 13.678 p/kWh on 962 p/day. 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 November 2026. Supplier's own website, checked 3 Nov 2026.

  Electricity

  45.94p/kWh·300p/day

  Profile Classes 1-4 and 5-8 are both 45.94 p/kWh on 300 p/day, with all Day and Eve/Weekend units charged at the Day Rate. Profile Class 0 (half-hourly) is 42.30 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 September 2026. Supplier's own website, checked 3 Nov 2026.

  Electricity

  42.91p/kWh·site-specific standing charge

  Non-half-hourly day rate is 45.94 p/kWh and night 31.95 p/kWh. Half-hourly anytime is 37.31 p/kWh. Every electricity meter carries a site-specific daily charge shown on the bill. TotalEnergies prints no date beside the rates; 1 September 2026 comes from its link to the rates in force before then.

  Gas

  12.98p/kWh·256p/day

  Printed as 12.98 pence per kWh plus a charge of 256 pence a day. Sites using more than 732,000 kWh a year may get a site-specific daily 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 October 2026. Supplier's own published rate schedule, checked 3 Nov 2026.

  Electricity

  44.00p/kWh·450p/day

  Profile Class 5-8 carries the same 44 p/kWh on 450 p/day. Half-hourly SmartFlex on Low Voltage Band 1 is 41 p/kWh with a regional standing charge from 695.69 to 1,352.68 p/day. Prices exclude Climate Change Levy and VAT.

  Gas

  8.50p/kWh·500p/day

  One rate for all gas meters. Prices exclude Climate Change Levy and VAT.

  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 November 2026. Supplier's own published rate schedule, checked 3 Nov 2026.

  Electricity

  47.46p/kWh·site-specific standing charge

  Regional range 46.48 p/kWh (MIDE) to 50.06 p/kWh (HYDE). Half-hourly low voltage runs 45.62 to 48.00 p/kWh. Crown publishes the daily standing charge as site-specific rather than a flat figure.

  Gas

  15.72p/kWh·site-specific standing charge

  Band 2 (73,201 to 293,000 kWh) is 15.349 p/kWh and Band 3 (over 293,001 kWh) is 15.183 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 November 2026. Supplier's own website, checked 3 Nov 2026.

  Electricity

  53.31p/kWh·343p/day

  Half-hourly is 52.58 p/kWh on a 1,304 p/day standing charge, with DUoS capacity charges also passed through. DUoS and TNUoS fixed charges are passed through on top for non-half-hourly meters. Corona prints standing charges in pounds a day (3.43 and 13.04).

  Gas

  13.76p/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 B2B gas and electricity supplier, strongest in gas. 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.
  • Publishes fresh out-of-contract and deemed schedules every month, so the current rate is easy to check.
  • Now backed by sovereign German state for stability.

  SEFE Energy out-of-contract rates 2026

  Effective 1 November 2026. Supplier's own published rate schedule, checked 3 Nov 2026.

  Electricity

  50.38p/kWh·241p/day

  Every Aggregated band pays 50.38 p/kWh, with a standing charge from 196 to 712 p/day by band. LV site-specific meters pay 51.13 p/kWh plus a capacity charge.

  Gas

  13.95p/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 pay the same 13.95 p/kWh with a site-specific pass-through standing charge plus a 150 p/day administration charge.

  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 2026

  Effective 10 August 2026. Supplier's own published rate schedule, checked 3 Nov 2026.

  Electricity

  63.98p/kWh·480p/day

  Single national row, also used for half-hourly unmetered supplies. Yü gives 30 days' notice of changes. Half-hourly low voltage Freedom rates run 67.5 to 70.6 p/kWh by region, with a minimum standing charge of 2,990 to 3,890 p/day.

  Gas

  19.88p/kWh·750p/day

  Bands 1 and 2 (AQ up to 732,000 kWh) pay 19.88 p/kWh on 750 p/day. Band 3 pays 19.50 p/kWh on 1,200 p/day.

  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.
  • Publishes one flat out-of-contract and deemed rate per fuel, with no regional bands.

  Pozitive Energy out-of-contract rates 2026

  Effective 1 March 2026. Supplier's own website, checked 3 Nov 2026.

  Electricity

  45.00p/kWh·150p/day

  One national rate, no regions or bands. Day/night and evening/weekend meters are priced the same, 45 p/kWh on 150 p/day. The previous schedule, from 1 January 2024, was 35 p/kWh on 150 p/day.

  Gas

  15.00p/kWh·150p/day

  One gas rate, no AQ bands. The previous schedule, from 1 January 2024, was 8 p/kWh on 150 p/day.

  Full Pozitive Energy OOC breakdown

  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 3 Nov 2026.

  Electricity

  35.47p/kWh·168p/day

  Single national row. Half-hourly (PC 00) extended supply is 35.081 p/kWh on 217 p/day with availability charges passed through. Shell's deemed schedule for move-ins, also from 1 July 2026, is 28.312 p/kWh on 168 p/day non-half-hourly.

  Gas

  11.04p/kWh·548p/day

  Bands 2 and 3 (AQ 73,201 to 732,000): 11.242 p/kWh on 1,688 p/day. Band 4+ (over 732,000): 11.133 p/kWh on 2,747 p/day. Deemed gas from 1 July 2026: Band 1 7.482 p/kWh on 446 p/day, Bands 2 and 3 7.680 on 1,586, Band 4+ 7.571 on 2,646.

  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 3 Nov 2026.

  Electricity

  37.89p/kWh·528p/day

  One national rate from 1 June 2026 until further notice (standing charge printed as £5.28 a day). Earlier rows: 41.71 p/kWh for May 2026, 36.15 p/kWh for April 2026, 33.92 p/kWh on £3.99 a day from 1 April 2024 to 31 March 2026.

  Gas

  13.32p/kWh·220p/day

  One unit rate across all nine AQ bands. Standing charges run £2.20 to £856.69 a day by band. May 2026 was 16.21 p/kWh, April 2026 11.21 p/kWh.

  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 October 2026. Supplier's own website, checked 3 Nov 2026.

  Electricity

  38.41p/kWh·123.40p/day

  Night rate (midnight to 7am) is 28.87 p/kWh. Every Aggregated band pays 38.41 day and 28.87 night, with a standing charge from 123.40 to 561.04 p/day by residual band. Site-specific LV and HV meters pay slightly lower unit rates plus availability charges. One table covers deemed and out of contract.

  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