Who invested in Mantle8?
4 investors are on record as having backed Mantle8 — Exploring for natural hydrogen underground, in Energy, France. Each row below says whether the round came from the investor's own portfolio page or from the press.
mantle8.comMantle8 investors
Breakthrough Energy VenturesInvests in clean energy innovation to solve climate change, building companies from…series-a$31MMay 2026
SandwaterBacks early-stage companies solving critical issues in resource efficiency, energy…series-a$31MMay 2026
2 more investors on record for Mantle8.
The first two are open to everyone. A free account opens the rest — the fund, the round, the amount and where each number came from. No card, no demo call.
The funds that backed Mantle8 are in the directory.
If they wrote this cheque, they may write yours. Pitch2Fund scores your startup against every one of them, gives you the partner to write to, and drafts the email. Free.