A

• Affect Energy
• Avro Energy

B

• Better Energy
• Boost
• Breeze Energy
• Brighter World Energy
• Brilliant Energy
• Bristol Energy
• British Gas
• Bulb

C

• Cardiff Energy Supply Limited
• Co-operative Energy

D

• Daligas

E

• E
• E.ON
• EBICo
• Economy Energy
• Ecotricity
• EDF Energy
• Electraphase
• EnergySW
• Engie
• Enstroga
• Entice Energy
• ESB Energy
• Eversmart Energy
• Extra Energy

F

• Fairerpower
• First Utility
• Fischer Energy
• Flow Energy
• Future Energy

G

• GB Energy Supply
• GEN4U Ltd
• Glide
• GnERGY
• Go Effortless Energy
• Good Energy
• Green Energy (UK) plc
• Green Network Energy
• Green Star Energy

I

• Igloo Energy
• IRESA Limited
• iSupplyEnergy

L

• LECCY

M

• M&S Energy

N

• Nabuh Energy
• National Gas
• npower

O

• Octopus Energy
• Oink Energy
• One Select
• Our Power
• OVO Energy

P

• Peterborough Energy
• PFP Energy
• Powershop
• Pure Planet

R

• Robin Hood Energy

S

• Sainsbury’s Energy
• ScottishPower
• So Energy
• Solarplicity Energy Ltd
• Southend Energy
• Spark Energy
• SSE
• SSE Atlantic
• SSE Scottish Hydro
• SSE Southern Electric
• SSE Swalec

T

• Telecom Plus
• The Energy Deal
• The People’s Energy Company
• Together Energy
• Tonik Energy
• Toto Energy

U

• Usio Energy Supply Limited
• Utilita

W

• White Rose Energy

Z

• Zebra Power
• Zog Energy