Octopus Energy

Octopus Energy Group Limited (formerly Octopus Energy Limited and Octopus Energy Holdings Limited), known as Octopus Energy, is a British company operating in the fields of energy generation and supply.
It was founded in 2015 with the backing of Octopus Group, a British asset management company.
Headquartered in London, it has operations in the United Kingdom, France, Germany, Italy, Spain, Australia, Japan, New Zealand and the United States.
Octopus Energy is the UK's largest supplier of energy, with 14 million customer accounts in 8 million households as of 2026.