Tokamak Energy

Tokamak Energy

Develops tokamak fusion energy technology

Overview

Tokamak Energy is a UK-based fusion energy developer focused on building and advancing tokamak reactors to contain and control nuclear fusion. Its main product is the tokamak device used to achieve fusion and, in the long term, generate electricity. The company conducts research, development, and aims to commercialize fusion technology, funding its work through investment rounds and grants, with potential revenue from licensing or selling technology. The leadership includes an experienced chairman, an executive vice chairman/physicist, and a chief scientist who is a leading tokamak authority, underscoring a strong blend of business, physics, and energy sector expertise. The company differentiates itself through its experienced leadership, depth of physics expertise, and a focused effort to accelerate fusion deployment in partnership with energy providers and governments. Its goal is to bring clean, safe, and virtually limitless fusion power to the market and reduce carbon emissions.

About Tokamak Energy

Simplify's Rating
Why Tokamak Energy is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Industrial & Manufacturing

Government & Public Sector

Energy

Company Size

201-500

Company Stage

Series C

Total Funding

$293.9M

Headquarters

Milton, United Kingdom

Founded

2009

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Simplify's Take

What believers are saying

  • November 2024’s $125 million round funded commercialization and magnet scaling into 2026.
  • May 6, 2026 Infinity Fusion Consortium expands Britain’s first private fusion plant opportunity.
  • June 2026 Furukawa Electric collaboration de-risks UK HTS tape supply for magnet production.

What critics are saying

  • Commonwealth Fusion Systems and Helion have bigger capital, faster timelines, and customer PPAs.
  • Tokamak Energy still lacks a commercial fusion plant; revenue depends on 2026-2029 government contracts.
  • If ST80-HTS slips, TE Magnetics becomes a niche supplier and fusion leadership evaporates.

What makes Tokamak Energy unique

  • Tokamak Energy combines fusion R&D with TE Magnetics commercial sales in 2026.
  • April 14, 2026 STEP contract confirms UK leadership in HTS magnet systems.
  • ST40 and Ridgway Machines give Tokamak Energy in-house test-and-manufacture integration.

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Funding

Total Funding

$293.9M

Above

Industry Average

Funded Over

8 Rounds

Series C funding is usually for startups that are doing well and are looking for more money to fuel major growth, such as acquiring other companies, expanding into global markets, or launching new product lines. Investors typically include larger venture capital firms and private equity.
Series C Funding Comparison
Below Average

Industry standards

$50M
$3.6M
Tokamak Energy
$40M
Figma
$50M
Medium
$62M
SeatGeek
$100M
Oura

Benefits

Paid Vacation

Hybrid Work Options

Pension Scheme

Share Options Scheme

Group Life Insurance

Critical Illness

Health Cash Plan

Investment in Training and Development

Growth & Insights and Company News

Headcount

6 month growth

↓ -2%

1 year growth

↓ -1%

2 year growth

↓ -1%
BLM Group
Sep 22nd, 2025
Fusion technology company acquires Leicester firm - East Midlands Business Link

Tokamak Energy has accelerated the growth of its TE Magnetics business with the acquisition of Ridgway Machines.

Hot Showbiz
May 13th, 2025
Tokamak Energy secures $125M funding.

Tokamak Energy, a British scaleup, has secured $125 million to advance its fusion energy commercialization plans. The funding round was led by East X Ventures and Lingotto Investment Management, with participation from new investors including British Patient Capital. This investment makes Tokamak Energy Europe's most well-funded private fusion energy venture. The funds will also support the development of superconducting magnets using REBCO tape.

Tech.eu
Dec 9th, 2024
November 2024'S Top 10 European Tech Deals You Need To Know About

According to the Tech.eu database, European tech companies raised €5.2 billion over the course of November 2024. This figure is 30 per cent higher than the previous month when European tech companies raised €4 billion. Compared to November 2023, however, the amount has decreased by around 8 per cent, as European tech companies raised €5.6 billion that month. RJ Schuurs, Partner at Antler, commented on the November numbers within the European tech investment landscape in our November Tech.eu Pulse, a compact version of the monthly report:We have seen countless examples of startups that focus on capital efficiency and start with relatively small Pre-Seed and Seed rounds go on to raise significant amounts of funding further down the line. This long tail of early-stage startups may not attract the same kind of headlines, but they are the engine room of the European tech ecosystem and represent a critical mass of venture-backed, fast-growth startups whose success will define the next ten years

Pulse 2.0
Dec 3rd, 2024
Tokamak Energy Raises $125M for Fusion

Tokamak Energy has raised $125 million to advance its fusion energy commercialization and high-temperature superconducting technology, TE Magnetics. The funding round was co-led by East X Ventures and Lingotto Investment Management, with new investors like Furukawa Electric Company and British Patient Capital. This brings the total funding to $335 million since 2009. The funds will support the growth of TE Magnetics and the development of a fusion pilot plant and new fusion technologies.

PR Newswire
Nov 20th, 2024
Tokamak Energy raises $125M for fusion.

Tokamak Energy has raised $125 million to advance its fusion energy commercialization and expand its high temperature superconducting technology, TE Magnetics. The funding round was co-led by East X Ventures and Lingotto Investment Management, with new investors like Furukawa Electric Company and British Patient Capital. This brings the total funding to $335 million since its 2009 spin-out from the UK Atomic Energy Authority, supporting growth in fusion energy and other industries.

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