Octopus Energy was founded in 2015 and now services over 1.5 million domestic and business customers with electricity and gas across the UK. Octopus specialise in 100% renewable energy and make sure today's renewables infrastructure keeps on turning, generating clean, green energy to power Great Britain. 92% of their customers rate them as 5* Excellent on TrustPilot; and they have been the only supplier to be recommended by consumer champion, Which? for the last three years.