Mantle8

ActiveOn the France Radar · not ranked

Natural hydrogen exploration

Climate tech›natural hydrogen exploration

Last roundSeries A · May 2026

Why Mantle8 is not ranked yet

The Radar lists every known eligible company, sorted by date of last round, with no AI judgement. Mantle8 enters the ranking once its public data is sufficient for the AI to estimate it. Next France edition: 19 Oct 2026.

Funding history

Date	Round	Amount	Type	Investors	Source
May 2026	Series A	USD ~35M (EUR 31M)	—	Sandwater, Breakthrough Energy Ventures, Bpifrance	techfundingnews.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.

Uback rankings

How the AI ranks →

Ranking	Tier	Rank	Edition	Next update
France · all sectors	Radar	—	Edition 0 – beta · September 2026	19 Oct 2026

Independent analyses

By industry professionals & analysts

Industry professionals and financial analysts can publish their own analysis of Mantle8 as a PDF, on one of three angles only:

ValuationWhat is Mantle8 worth?

Versus competitorsHow does it compare?

Who should acquire itStrategic buyers, and why

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Analyses are the opinion of their authors, not of Uback. They are checked before publication and never change the rank.

Invest

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Do you run Mantle8?

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What the AI reads

Press & investor announcements1 source

Pappers (French company registry)Planned

Read by the AI at the next edition.

Comparable companies in France

Full France ranking →

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Investors in Mantle8: Sandwater · Breakthrough Energy Ventures · Bpifrance

Sources. techfundingnews.com

Last updated: Sep 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.