https://www.eu-startups.com/2026/05/frances-mantle8-raises-e31-million-to-fund-the-worlds-most-advanced-natural-hydrogen-exploration-and-drilling-campaign/
France’s Mantle8 raises €31 million to fund the world’s most advanced natural hydrogen exploration...
May 13, 2026 - Mantle8, a Grenoble, France-based natural hydrogen exploration company, has raised €31 million in Series A funding. This round brings the company's total
https://mantle8.com/
Mantle8 | Unearthing natural hydrogen
Jun 30, 2026 - Using bottom-up exploration and decades of geology experience, we are on a mission to deliver natural hydrogen to the world.
unearthingnaturalhydrogen