Octopus Energy Group is a global energy company founded in the United Kingdom in 2016 with the goal of making renewable energy accessible to all, through technology.

Octopus is the fastest-growing energy company in Europe and the leading energy company in the United Kingdom. It provides 100% green energy and services to over 11 million people worldwide (as of 2026). The Group manages a portfolio of clean energy and energy storage projects among the most significant in Europe.