SEG Supplier List

Guidance
Publication date
Scheme name
SEG

SEG Licensees 

List of Licensees who advised Ofgem that they are SEG Licensees for the sixth SEG year: 1 April 2025 to 31 March 2026.

Mandatory SEG Licensees

  • British Gas Trading Ltd  
  • E (Gas and Electricity) Ltd  
  • E.ON Next Energy Ltd 
  • EDF Energy Customers Ltd 
  • Electricity Plus Supply Ltd (trading as Utility Warehouse) 
  • Octopus Energy Ltd (trading as Octopus) 
  • Octopus Energy Operations Ltd (trading as Octopus) 
  • OVO Electricity Ltd 
  • Scottish Power Energy Retail Ltd 
  • SO Energy Trading Ltd 
  • Utilita Energy Ltd

Voluntary SEG Licensees

  • Rebel Energy Supply Ltd 
  • Pozitive Energy Ltd 
  • Ruby Electricity Ltd 
  • Tomato Energy 
  • Voltx Power Ltd