# Tokamak Energy: Renewables & environment, Abingdon, United Kingdom

> Tokamak Energy: Tokamak Energy Ltd is a prominent fusion energy company based in Milton Park, Oxfordshire, UK. Based in Abingdon, United Kingdom. Founded 2009.

Source: https://millionrounds.com/startup/tokamak-energy-2 (Millionrounds; every figure on the page links to its filing or article)

United Kingdom · [Renewables & environment startup](https://millionrounds.com/companies)

# Tokamak Energy

Tokamak Energy Ltd is a prominent fusion energy company based in Milton Park, Oxfordshire, UK.

Funding reported Last round: Series C

Renewables & environment Abingdon, United Kingdom

Company summary

- **Founded:** 2009 17 years old
- **Team:** 280 201 to 1,000 people
- **Funding reported:** 306.6M as listed, currency not stated
- **Last round:** Series C Jun 2025

How sure we are

- ✓ **Listed** We know it exists and what it does
- 2 **Funding reported** A company dataset reports a raise
- 3 **Observed** A filing or a dated announcement confirms a round

No round for Tokamak Energy has been confirmed by a filing or an announcement yet, so nothing here counts toward an investor's record. [How we decide](https://millionrounds.com/methodology)

## About Tokamak Energy

Tokamak Energy Ltd is a prominent fusion energy company based in Milton Park, Oxfordshire, UK.

Founded in 2009 as a spin-off from the UK Atomic Energy Authority, it specializes in spherical tokamak technology and High-Temperature Superconductor (HTS) magnet design. With over 250 employees and more than 70 patent applications, Tokamak Energy aims to accelerate the development of clean and affordable fusion power, targeting commercial deployment in the 2030s. The company operates the ST40 spherical tokamak, which achieved a significant milestone by reaching an ion temperature of 100 million °C in 2022. Tokamak Energy also develops advanced HTS magnets through its TE Magnetics division, which are used in various applications, including life sciences and renewable energy. The company collaborates with government agencies, research institutions, and industrial partners globally, contributing to initiatives like the UK STEP programme and working with organizations such as CERN. Tokamak Energy is committed to leading the transition to commercial fusion energy and expanding the use of its technologies across multiple sectors.

## What company datasets say Tokamak Energy raised

Funding, as reported

Reported in all **306.6M** in the source's currency

Last round **Series C**

Last round size **3.6M**

Last round date **Jun 2025**

## Founders and team

From Tokamak Energy's own website: 10 on the team.

- **Warrick Matthews** Chief Executive Officer
- **Dr Mikhail Gryaznevich** Chief Scientist
- **Daniel Freeman** Non-Executive Director
- **Dr Chris Martin** Chairman
- **Dr Ross Morgan** Managing Director of Fusion
- **Erik Bonino** Non-Executive Director
- **Martin Kleppe** Non-Executive Director
- **Rory Scott Russell** Non-Executive Director
- **Sir David Harding** Non-Executive Director
- **Thomas Pfisterer** Non-Executive Director

Advisers *Dr David Kingham*

## On 2 portfolio pages

Investors who name them

- [East X Ventures](https://millionrounds.com/fund/east-x-ventures)
- [Lingotto](https://millionrounds.com/fund/lingotto)

Each firm lists Tokamak Energy on its own website. That is the firm's claim, a weaker thing than a round we watched, but a named source.

## The company, in detail

What they build

Known for

future of energy fusion technology health care fusion industry partnerships plasma physics low greenhouse gas emissions clean energy & technology magnet system engineering fusion research renewable energy power generation energy supply chain magnet system integration global energy markets magnet system design fusion energy commercialization sustainable energy

Built with from their website

Google Maps Amobee Google Tag Manager Cross Pixel Media ANS WordPress.org Atlassian Font Awesome C++ YouTube

+8 more

GitHub Viewport Meta FreeCAD Element UI Mimecast Hubspot Signal LabVIEW

- **Sector:** Renewables & environment
- **Industry code:** NAICS 334419, 541715, SIC 3571
- **Region:** England
- **Revenue:** 1M a year, as listed

## Renewables & environment in United Kingdom

Startups like it

- [**Renew Risk** London · founded 2021 *Raised*](https://millionrounds.com/company/renew-risk)
- [**H2 Green** Edinburgh · founded 2020](https://millionrounds.com/startup/h2-green-2)
- [**Octopus Energy Group** London · founded 2016](https://millionrounds.com/startup/octopus-energy-group)
- [**Corio Generation** London · founded 2022](https://millionrounds.com/startup/corio-generation)
- [**GRIDSERVE** Iver · founded 2016](https://millionrounds.com/startup/gridserve)
- [**char.gy** London · founded 2016](https://millionrounds.com/startup/char-gy)
- [**Sunsave** London · founded 2022](https://millionrounds.com/startup/sunsave)
- [**Protium** London · founded 2019](https://millionrounds.com/startup/protium)

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