Greg Jackson CBE is the founder and CEO of Octopus Energy Group, the UK's largest energy supplier and a global energy and technology company that's driving the affordable, green energy system of the future. 

Octopus is innovating relentlessly to make energy better for consumers and the planet. It now serves 10 million customers globally, including 7.7 million in the UK, and runs rapidly expanding retail operations across France, Germany, Italy, Spain and Japan, further fueling international growth.

Operating across 27 countries, the Group manages a £7 billion renewables portfolio and leads thriving businesses in EV leasing, heat pumps, and solar. It has attracted over $2.3 billion worth of funding from international energy companies, large pension funds and global investors, and was last valued at around $9 billion.

Greg is a thought leader on innovation and energy and a serial tech unicorn founder – a rare feat among British entrepreneurs. He has built two tech giants – Octopus Energy and Kraken – which are both valued at billions of dollars. He built and sold a number of successful businesses before starting Octopus and is an angel investor in a wide range of start-ups. 

In 2024, Greg was appointed Commander of the Order of the British Empire (CBE) and named one of TIME magazine's 100 Most Influential Climate Leaders. He was appointed a Non-Executive Member of the Cabinet Office Board in 2025.