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East X Ventures

Portfolio in Germany · United Kingdom: 3 funded startups tracked by Uback, 3 of them in a ranking.

Portfolio on Uback3startups, 2 countries
In a ranking3ranked by AI-estimated valuation
On the Radar0eligible, not ranked
Latest deal trackedJul 2026Proxima Fusion

Portfolio on Uback

Sorted by Uback rank, then Radar by last round
CompanyUbackSectorRound backedValuation (AI)
Proxima Fusion#7 Fusion & advanced nuclearEnergy & climate › Generation › Fusion & advanced nuclearSeries B · EUR 411M (about USD 469M) · Jul 2026Unicorn
Tokamak Energy#17 Fusion & advanced nuclearEnergy & climate › Generation › Fusion & advanced nuclearEquity round · USD 125M · Nov 2024Hundreds of M$
First Light Fusion#29 Fusion & advanced nuclearEnergy & climate › Generation › Fusion & advanced nuclearEquity round (first close) · GBP 25M (about USD 33M) · Apr 2026Hundreds of M$

Only startups that meet Uback’s eligibility rules are shown. Amounts are round sizes, not the fund’s share. Rounds as reported by public sources.

By sector

Energy & climate3

Deals tracked per year

12024
02025
22026

Co-investors

XTX Ventures · RWE · Google · KfW Capital · EIC Fund · Lingotto · British Patient Capital · Furukawa · UKAEA · IP Group

Investors that joined the same rounds, as reported by public sources.

Sources. en.wikipedia.org, eu-startups.com, ipgroupplc.com, neutronbytes.com, as cited on each company’s profile.

Last updated: Oct 2026Report a missing dealReport an error

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