Who invested in Tokamak Energy

2 rounds we have observed, with the 0 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Energy

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Funding summaryUpdated 5 Nov 2026

$12Mraised across 2 rounds since 2024, from 2 sources

$8.1MRound$3.7MRound

Latest round: Round, $3.7MJun 2025
Biggest round: $8.1MRound · Aug 2024
Investors: 0

See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2025

$8.1MRound$3.7MRound

First round: Round, $8.1M
Biggest round: $8.1M
Between rounds: 10 months

The rounds

Jun 2025
Round$3.7M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
Aug 2024
Round$8.1M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet

Funding filed with regulators

Tokamak Energy filed 2 raises, $12M in all. Filings say how much was sold and to how many investors; they never name the investors.

Jun 2025$3.7MUK share allotment
Aug 2024$8.1MUK share allotment

Founders and team

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

Warrick MatthewsChief Executive Officer
Dr Mikhail GryaznevichChief Scientist
Daniel FreemanNon-Executive Director
Dr Chris MartinChairman
Dr Ross MorganManaging Director of Fusion
Erik BoninoNon-Executive Director
Martin KleppeNon-Executive Director
Rory Scott RussellNon-Executive Director
Sir David HardingNon-Executive Director
Thomas PfistererNon-Executive Director

AdvisersDr David Kingham

Also claim to have backed them

These 2 firms list Tokamak Energy as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.