First Light Fusion

Active#29 worldwide · Fusion & advanced nuclear

Fusion & advanced nuclear

Energy & climate›Fusion & advanced nuclear

HQUnited Kingdom

Last roundEquity round (first close) · Apr 2026

Uback rankings

Ranking	Tier	Rank	Edition	Next update
Fusion & advanced nuclear · worldwide	Top 45	#29	Edition 0 (beta) · Oct 2026	2 Mar 2027

Rank historyOct 2026 · #29 Fusion & advanced nuclearFirst edition: no movements yet.

Estimated valuation

AI · Fusion & advanced nuclear ranking (worldwide)

≈ USD 170MUSD 110–260M · Hundreds of M$ Medium confidence

Hundreds of k$

Millions $

Tens of M$

Hundreds of M$

Unicorn

Decacorn

Hectocorn

Anchor: Last known equity round: Equity round (first close) · GBP 25M (about USD 33M) · Apr 2026

An indicative editorial estimate produced by AI, imperfect by nature: neither a financial valuation nor investment advice. Only the market sets a company’s value. Method

Funding history

Date	Round	Amount	Type	Investors	Source
Apr 2026	Equity round (first close)	GBP 25M (about USD 33M)	Equity	East X Ventures, UKAEA, IP Group	ipgroupplc.com

Rounds as cited by Uback’s rankings and their sources. Equity, debt and grants are shown separately; only equity rounds count towards the valuation anchor.

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What the AI reads

Press & investor announcements1 source

Read by the AI at the next edition.

Comparable companies in fusion & advanced nuclear

Full fusion & advanced nuclear ranking →

Renaissance Fusion#28FranceHundreds of M$Astral Systems#30United KingdomHundreds of M$Realta Fusion#27United StatesHundreds of M$Avalanche Energy#31United StatesHundreds of M$

Investors in First Light Fusion: East X Ventures · UKAEA · IP Group

Sources. ipgroupplc.com

Last updated: Oct 2026Report an error

Uback is a content publisher. It provides no investment advice, receives no mandate and takes part in no transaction. Rankings, ranges and brackets are editorial estimates produced by AI, purely indicative.