Top Energy Suppliers

Founded in 2011 Octopus Energy, like many other similar energy suppliers that were founded around the time as a strong focus on providing a more green and eco-friendly energy solution. Octopus Energy provides energy services for both homes and businesses and offers both gas and electricity.

OVO Energy was founded in 2009 with a focus on providing greener and cheaper energy services. OVO Energy also puts a strong emphasis on simplicity as well, so if anyone finds navigating energy suppliers and tariffs difficult OVO Energy could be the supplier for you.

In the UK energy companies have a fierce rivalry but as my Shell Energy review as discovered there is a lot of competition outside the big six energy companies. Shell Energy isn’t one of the big six but it is very close to being one of the top contenders.

Co-op Energy is part of Midcounties Co-operative and started supplying domestic energy consumers in 2011. In August 2019 they entered into a partnership with Octopus Energy. Like Octopus Energy, Co-op Energy supplies environmentally friendly energy.

EDF Energy were formed in 2002 and are owned by Électricité de France, a French company. EDF Energy are based in London. They have over five million customers in the UK.

British Gas are the UK's largest energy supplier with around twelve million customers and approximately 20,000 employees. They are currently owned by Centrica.

SSE are headquartered in Perth, Scotland. They were formed in September 1998 when Scottish Hydro-Electric and Southern Electric merged. They have almost five million customers or around 12% of the UK market.

Utility Warehouse were formed in 2013 and offer domestic energy as well as phones, broadband and home insurance. The company now has 2% of the domestic energy market with over half a million customers despite not advertising and relying instead on word-of-mouth recommendations and a network of agents.

Outfox The Market is a very different kind of energy supplier and its colourful and comic themed website really shows you everything you need to know about this energy supplier. If you’re applying to be a customer with Outfox The Market you’ll be dealing with a more unusual and more open energy supplier.

Scottish Power are based in Glasgow, Scotland, although they are currently owned by Iberdrola, a Spanish utility company. They supply power to customers in Central and Southern Scotland, Merseyside, North Wales, and certain parts of Cheshire and Shropshire.

Ecotricity started supplying green gas in 2010, adding green energy to their offering in 2013. They claim that they are Britain’s Greenest Energy Company. A big claim, perhaps, but one that they can back up.

Good Energy were established in 1999 and they now have around a quarter of a million customers. They boast that their energy is the most environmentally friendly energy available and they are also involved in environmental projects. Good Energy generates some of the energy they supply at their own wind and solar farms.

The company currently has over three quarters of a million customers in the UK. In part this number of customers is thanks to the fact that they took on Our Power’s 31,000 customers and Eversmart Energy’s 29,000 customers after thoe two energy suppliers ceased trading.

Green Energy UK were formed in 2001 and are a relatively small energy supplier based in Hertfordshire. As their name suggests, their main focus is supplying environmentally friendly energy. However, they go further than most environmentally friendly energy suppliers because Green Energy UK also supply EKOenergy electricity and gas.

In 2018 the partnership with SSE ended and M&S Energy entered into a partnership with Octopus Energy. The partnership with Octopus Energy means that the energy supplied to M&S Energy customers is environmentally friendly.

So Energy is a new name in the UK energy market, it was founded in 2015 and stands out from many of the other providers because it offers 100% renewable gas and electricity. If you want to be eco-friendly then they certainly seem like a great choice.

Affect Energy are a relatively new energy supplier, having been founded by John Szymik in 2016. Although the company are relatively new, the team that founded the company had 50 years experience working for large energy suppliers. It was bought out by Octopus Energy although Affect Energy remains as a brand.

Sainsbury's Energy were originally a subsidiary of British Gas which used the Sainsbury's brand under licence. Since April 2019 they have been a subsidiary of Npower and the energy used by Sainsbury's Energy customers is now supplied by Npower.

Boost Power started off as part of OVO Energy and split off in 2017 to concentrate on the pre-payment energy market. The company are still part of the OVO Energy group and are based in Temple Quay, Bristol.

E are a Birmingham-based energy supplier specialising in the pre-payment sector. They currently have 300,000 customers.