Tokamak Energy is a leading global commercial fusion energy company based near Oxford, UK. The company is developing the fusion power plant of tomorrow while commercialising the tech applications of today.

Tokamak Energy is pursuing fusion through the combined development of spherical tokamaks along with high temperature superconducting (HTS) magnets.

In early 2022 Tokamak Energy demonstrated a world-first with its ST40 spherical tokamak, achieving a plasma temperature of 100 million degrees Celsius, the threshold required for commercial fusion energy. This is by far the highest temperature ever achieved in a spherical tokamak and by any privately funded tokamak. This achievement further substantiates spherical tokamaks as the optimal route to the delivery of clean, secure, low cost, scalable and globally deployable commercial fusion energy.

Tokamak Energy received five US Department of Energy grants in 2020, creating partnerships with leading expertise in the US National Laboratory System. The company is partnering with Oak Ridge National Laboratory and Princeton Plasma Physics Laboratory to develop the ST40. It has also received a £10m grant from the UK Government as part of investment under the Advanced Modular Reactor (AMR) programme.

Tokamak Energy is working with CERN, the European Organisation for Nuclear Research, on high temperature superconducting (HTS) magnets in developing a proprietary technology that will scale to the large magnets necessary for fusion power modules. HTS magnets also have applications for particle accelerators, aerospace and for several other industrial sectors.

The company, founded in 2009 as a spin-off from the Culham Centre for Fusion Energy, currently employs a growing team of over 160 people with talent from the UK and experts from around the world. It combines world leading scientific, engineering, industrial and commercial capabilities. The company has more than 50 families of patent applications and has raised over £100m of private investment.

Once realised, fusion energy will be clean, economic, and globally deployable – a key enabler for meeting international climate policy goals.



Patented protection for our world-class technology

Tokamak Energy’s Intellectual Property (IP) portfolio currently includes over 50 families of patent applications covering all aspects of our technology including:

• Compact spherical tokamak fusion reactor with HTS magnets
• HTS magnet design to maximise efficiency in a compact spherical tokamak
• Low power, high gain compact tokamak
• Neutron shielding