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COMPARE THE BIG 6

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Energy Suppliers

Meet the UK’s biggest energy suppliers

Energy suppliers are the companies that supply the gas and electricity in your home. Most energy suppliers in the UK do not own any of the network of cables or pipes that delivers the gas and electricity to your home. Their business is buying wholesale electricity or gas, paying network and government charges, and then selling the gas and electricity to you. Think of them in the same way as the railway industry in the UK. Train companies own the trains but they do not own the tracks they run on.

In the UK there are around 60 energy suppliers. You can find out more about the UK’s energy suppliers here.

We also recommend you use our Click & Compare service.

We check the tariffs of every single energy supplier in the UK and show you the best tariffs you can get in your home.

And if you decide to switch to a cheaper supplier, we’ll do that for you. No hassle, no charge!

We are paid a fee from the energy suppliers for every switch completed. The fee is already included within the marketing budgets of the energy suppliers so the prices you see on our site are the same as you’ll see on theirs.


Who or what are the ‘Big 6’ energy suppliers?

You’ll probably have heard people talking about the ‘Big 6’ energy suppliers.

When people refer to the Big 6, they mean the six largest companies supplying gas and electricity to the homes and businesses in the UK. And when we say Big 6, we really mean it. Together, the Big 6 energy companies supply over 90% of the homes in Britain, which means they completely dominate the market.

The Big 6 energy companies are:

British Gas

EDF Energy

npower

EON UK

Scottish Power

SSE

With the gas and electricity in over 90% of Britain’s homes supplied by one of these six companies, it is likely that your energy supplier is one of the ones listed above.

If you would like to move to another supplier, whether one of the Big 6 or one of the smaller suppliers, UtilitySavingExpert.com makes it easy with our Click & Compare service.

And with our no hassle, no cost switching service, changing supplier only takes a couple of minutes.

COMPARE ENERGY SUPPLIERS
SWITCH & SAVE TODAY

Which energy supplier should I choose?

You can find out more about the UK’s 60 or so energy suppliers here. Each of our guides has:

  • pink tick a basic introduction to the energy supplier
  • pink tick the history of the energy supplier
  • pink tick the schemes the energy supplier has in place to help people who are on a low income or in debt
  • pink tick the fuel mix used in the energy supplier’s electricity generation
  • pink tick the current tariffs offered by the energy supplier

Use this section of the website to find out more about the UK’s energy suppliers. Then use our Click & Compare tool to see which energy supplier will save you the most money and let us get you switched!

Affect Energy

Affect Energy is one of the newer energy suppliers in the market

Avro Energy

Avro Energy is a new supplier that entered the market in 2015

Better Energy

Better Energy promises to offer the lowest gas prices available

Bristol Energy

Bristol Energy describes itself as an energy supplier with a social conscience

British Gas

British Gas is the biggest energy supplier in the UK

Bulb

Bulb is a supplier of renewable energy that promises competitive prices

Cardiff Energy Supply

CESL promises you will always pay one of the lowest tariffs on the market

Co-Operative Energy

Co-operative Energy is the only energy supplier owned by its customers

Utility Warehouse

Utility Warehouse is committed to offering cheaper tariffs than the Big 6

Daligas

Daligas is an energy company promising transparency and simplicity

E

E is a gas and electricity supplier offering low and fair pricing

EBICo

EBICo is a not-for-profit renewable energy company offering fair prices

Economy Energy

Economy Energy is a gas and electricity company offering low tariffs

Ecotricity

Ecotricity is a not-for-profit renewable energy company with ethical pricing

EnergySW

EnergySW is owned by south west housing providers with OVO Energy

E.ON UK

E.ON UK is the fourth biggest energy supplier in the UK

EDF Energy

EDF Energy is the second biggest energy supplier in the UK

Extra Energy

Extra Energy focuses on helping you save money on your energy bills

Fairerpower

Fairerpower is a partnership between OVO Energy and Cheshire East Council

First Utility

First Utility is one of the UK’s largest independent energy companies

Flow Energy

Flow Energy is one of the energy market’s newest suppliers

Future Energy

Future Energy only offers one gas and one electricity tariff

GB Energy

GB Energy is now part of The Co-operative Energy

Glide

Glide provides bill sharing services and student utility bills

Gen4u

Gen4U is an energy company offering low prices and good service

Go Effortless Energy

Go Effortless Energy only offers one gas and one electricity tariff

Good Energy

Good Energy supplies all its electricity from renewable sources

GnERGY

GnERGY promises to be an open and honest gas and electricity company

White Rose Energy

White Rose Energy is a not-for-profit gas and electricity supplier

Green Energy (UK)

Green Energy (UK) supplies all its electricity from renewable sources

Green Star Energy

Green Star Energy focuses on offering cost-effective gas and electricity

Iresa Limited

Iresa Limited focuses on delivering straightforward prices, billing and service

iSupply Energy

iSupply Energy promises to offer straightforward low prices, not complicated deals

LoCO2 Energy

LoCO2 Energy is an independent company offering renewable energy at competitive prices

M&S Energy

M&S Energy matches all its electricity with UK-based renewable sources

National Gas

National Gas is a very new energy supplier that only supplies gas

npower

npower is the third biggest gas and electricity supplier in Britain

Octopus Energy

Octopus Energy is a new energy supplier with straightforward pricing

OVO Energy

OVO Energy delivers a high proportion of its energy from renewable sources

Peterborough Energy

Southend Energy is a partnership between OVO Energy and Peterborough City Council

Places for People Energy

Places for People Energy promises great service and great savings

Robin Hood Energy

Robin Hood Energy is an independent not-for-profit gas and electricity supplier

Sainsbury’s Energy

Sainsbury’s Energy is a partnership between Sainsbury’s and British Gas

Scottish Power

Scottish Power is the fifth biggest energy supplier in the UK

Southend Energy

Southend Energy is a partnership between OVO Energy and Southend-on-Sea Borough Council

Spark Energy

Spark Energy is one of the biggest energy companies outside the Big 6

SSE

SSE is the sixth biggest gas and electricity supplier in Britain

SSE Airtricity

SSE Airtricity is a member of the SSE Group

SSE Atlantic

SSE Atlantic is a member of the SSE Group

SSE Scottish Hydro

SSE Scottish Hydro is a member of the SSE Group

SSE Southern Electric

SSE Southern Electric is a member of the SSE Group

SSE SWALEC

SSE SWALEC is a member of the SSE Group

SO Energy

SO Energy promises its tariffs will always be among the cheapest

The Energy Deal

The Energy Deal wants to combine fair prices and enjoyable service

Together Energy

Together Energy wants to be the most trusted energy company

Tonik Energy

Tonik Energy wants to halve customers’ energy bills by 2022

Utilita

Utilita provides prepayment meters to low income and energy conscious households