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Tokamak Energy

Energy · Milton, United Kingdom · Founded 2009

Commercial fusion energy via spherical tokamaks and HTS magnets. MoreLess

Tokamak Energy is a UK-based startup operating in the energy sector, specifically focusing on the development of fusion energy. The company's mission is to accelerate the development of fusion energy, a form of power generation that is clean, safe, and virtually limitless. The company's primary product is the tokamak, a device used to contain and control the process of nuclear fusion.

The company's leadership team boasts a wealth of experience in the energy, healthcare, and environmental sectors. The team includes Chris Martin, the Chairman, who has a track record of successfully growing businesses and leading them to public offerings or sales. David, the Executive Vice Chairman and former CEO, is a trained theoretical physicist with a history of supporting new technology ventures and securing major contracts. Mikhail, the Chief Scientist, is a leading global authority on tokamaks.

Tokamak Energy's business model revolves around the research, development, and eventual commercialization of their fusion energy technology. Their target market includes energy providers and governments seeking to diversify their energy sources and reduce their carbon footprint. The company generates revenue through investment rounds, grants, and potentially through the sale or licensing of their technology once it is commercially viable.

In summary, Tokamak Energy is a promising startup in the energy sector, leveraging cutting-edge technology and a seasoned leadership team to bring fusion energy to the market.

Keywords: Fusion Energy, Tokamak, Clean Energy, Technology Development, Energy Sector, Investment, Commercialization, Leadership, Innovation, Carbon Reduction.

Company overview

Tokamak Energy company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2009
Headquarters
Milton, United Kingdom
Employees
287
Open positions
None listed
Dealroom signal
77.7
Investment activity
1 companies · latest Sep 2025
Capital deployed
Preferred round
ACQUISITION
client focusb2btechnologyDeep Techsub industryClean Energybusiness modelManufacturingsectorSpinoutsectorSustainable Development GoalssectorNuclear FusionsectorClimate TechsectorNovel EnergysectorSuperconductorssectorNIF defense security and resiliencesectorNIF energysectorNIF Energy Security and Climate ChangesectorDT and LS

Valuation & funding

Tokamak Energy funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES COther financing Jun 2025 $3.6M $428M Undisclosed
GROWTH EQUITY VCOther financing Nov 2024 $125M BW Group · Furukawa Electric · British Patient Capital · Sabanci Climate Ventures
SERIES COther financing Dec 2023 $50M $435M Legal & General Capital · David Harding · Hans-Peter Wild
LATE VCOther financing Jan 2020 $87M $348M Hans-Peter Wild
EARLY VCOther financing Dec 2018 $0 Undisclosed
EARLY VCOther financing Aug 2017 Undisclosed
EARLY VCOther financing Jan 2017 Legal & General Capital · David Harding
EARLY VCOther financing Apr 2016 UK Innovation & Science Seed Fund
EARLY VCOther financing Mar 2014 UK Innovation & Science Seed Fund
SPINOUTOther financing Oct 2009 Culham Centre for Fusion Energy
Showing 10 recorded eventsUnlock the complete deal history →

Financials

Revenue, earnings and profit over time

Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.

YearRevenueGrowthEBITDAMargin
2026 $1K 0% −$47M -4058480.5%
2025 $1K 0% −$47M -4058480.5%
2024 $1K -98.9% −$47M -4058480.5%
2023 $100K -98.6% −$47M -46564.6%
2022 $7.1M 0% −$47M -662.3%
2021 $7.1M -28.8% −$33M -465.4%
2020 $9.9M −$27M -271.9%
Company filings, research estimates and Dealroom dataOpen the full financial model →

Growth signals

Tokamak Energy website traffic

Latest recorded traffic for Tokamak Energy is 22K monthly website visits, up 37.5% over the last three months. Tokamak Energy's team declined 4.3% over the past year.

Latest monthly visits22K 3-month web change+37.5% 1-year team growth-4.3%
Monthly website visits81 observations · Oct 2019–Jul 2026
Hover or focus a point to see its exact monthly valueCompare with peers →

Comparisons

Tokamak Energy compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

CompanyHeadquartersStatusEmployeesTotal fundingValuation
First Light FusionInspired by the only natural example of inertial confinement on Earth, First Light Fusion is developing a practical pathway to fusion energy using the simplest machine possible Yarnton, United Kingdom Operational 89 $135M $225M
Crossfield FusionCrossfield Fusion has been developing a novel compact fusion reactor targeting carbon free heat and power generation. The company adopted a new approach to building fusion reactors based on patented technology called the Epicyclotron London, United Kingdom Operational
Exergy3Developing and commercializing a novel form of ultra-high temperature energy storage technology Edinburgh, United Kingdom Operational
Oxford PhotovoltaicsDesigns and manufactures hybrid organic photovoltaic systems for building integrated applications Yarnton, United Kingdom Operational
Focused EnergyCombining U.S. fusion science with German laser engineering to deliver modular, commercially viable fusion from proven ignition technology Darmstadt, Germany Operational
Renaissance FusionRenaissance Fusion builds on the success of stellarator experiments, makes them reactor-ready by quadrupling the magnetic field and simplifies them using proprietary High-Temperature Superconductors manufacturing and flowing liquid-metal walls Fontaine, France Operational
SupremaCritical HTS tapes for compact magnetic fusion reactors, essential for advancing energy technology Rome, Italy Operational
Firefly FusionFirefly Fusion will develop standard tokamaks as the most promising and fastest path to fusion energy Lausanne, Switzerland Operational
Showing 8 of the closest matchesCompare every metric →

Talent graph

Tokamak Energy's talent

Book a demo to see the people
Team profiled 23 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 6 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

11 investors on Tokamak Energy's cap table

Sourced from Dealroom's funding and investor records.

Series A 3 investors entered at this stage
UK Innovation & Science Seed Fund
Legal & General Capital
David Harding
Series B+ 7 investors entered at this stage
Hans-Peter Wild
Lingotto Investment Management
East X Ventures
BW Group
Furukawa Electric
British Patient Capital
Sabanci Climate Ventures
Other known 1 additional known investor
Culham Centre for Fusion Energy

Global footprint

Where Tokamak Energy has talent and traffic

Workforce by country
5 countries with
team presence
🇬🇧 United Kingdom96.5%
🇨🇭 Switzerland1.3%
🇺🇸 United States1.3%
🇫🇷 France0.4%
🇯🇵 Japan0.4%
5 countries shown

In the news

Latest news about Tokamak Energy

Recent press, funding announcements, and product moves mentioning Tokamak Energy — open to read from the original sources.

See all news

Market sentiment

What the market is saying about Tokamak Energy

An AI-synthesized read of the highest-engagement posts about Tokamak Energy on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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