Using bottom-up exploration and decades of geology experience, we are on a mission to deliver natural hydrogen to the world.
Location: France
Total raised: $42.25M
Funding Rounds 3
| Date | Series | Amount | Investors |
| 14.05.2026 | Series A | $36.31M | Sandwater |
| 10.03.2026 | - | $2.41M | - |
| 07.02.2025 | Seed | $3.53M | - |
Mentions in press and media 12
| Date | Title | Description |
| 19.05.2026 | Mantle8 Secures €31M for Global Natural Hydrogen Quest | Mantle8, a pioneering French clean-tech company, has secured €31 million in Series A funding. This substantial capital propels a global exploration and drilling campaign. The mission: to identify the first commercially exploitable, high-pur... |
| 14.05.2026 | Mantle8: €31 Million Raised For Natural Hydrogen Exploration And Drilling Campaign | Mantle8 has raised €31 million in Series A funding to advance its proprietary technology platform and launch a global exploration and drilling campaign aimed at identifying the first commercially exploitable reservoir of high-purity natural... |
| 13.05.2026 | Mantle8 Raises €31M in Series A Funding | Mantle8, a Grenoble, France-based developer of natural hydrogen exploration and subsurface modeling technologies, raised €31m in a Series A funding round. The round was led by Sandwater, with participation from Breakthrough Energy Ventures,... |
| 13.05.2026 | Avant Genomics Raises $3M+ in Funding | Avant Genomics, a Charlottesville, VA-based company which specializes in fully-automated liquid biopsy sample preparation for precision cancer detection, raised $3M+ in funding. Backers included TitletownTech, Halyard Ventures, Virginia Ven... |
| 10.03.2026 | Mantle8 awarded €2.06M EU grant for natural hydrogen platform | Mantle8, a European natural hydrogen exploration company, has received a €2.06 million grant from the European Union’s Just Transition Fund to support the development of its natural hydrogen exploration technology platform in Grenoble. Foun... |
| 28.04.2025 | From mining giants to Big Oil, major players are jumping on the ‘white hydrogen’ bandwagon | A growing number of sizable companies, from mining giants to energy majors, are embracing the hype for natural hydrogen. Analysts say the year ahead is expected to be a pivotal one for the sector, with industry players hoping their explorat... |
| 13.02.2025 | The Week in AgriFoodTech:Tidal Vision completes $140m B round, Oobli raises $18m, Agteria bags $6.2m | The week brought money flows on the agbiotech front, as chitosan solutions developer Tidal Vision announced a Series B round, sweet protein innovator Oobli teamed up with ingredient giant Ingredion, and Stockholm-based Agteria raised a seed... |
| 08.02.2025 | Mantle8: Pioneering the Future of Natural Hydrogen Exploration | In the heart of Grenoble, a revolution is brewing beneath the surface. Mantle8, a fledgling startup, has secured €3.4 million in seed funding to transform the landscape of natural hydrogen exploration. This isn’t just another tech company; ... |
| 07.02.2025 | Natural hydrogen exploration startup Mantle8 raises €3.4m seed | Mantle8, a French natural hydrogen exploration company, has raised a €3.4m seed round with investment from Kiko Ventures and Breakthrough Energy Ventures Europe (BEV-E), with participation from angel investors. The funds will be used run a ... |
| 07.02.2025 | Natural hydrogen exploration startup Mantle8 raises €3.4 million to scale | Mantle8, a Grenoble-based natural hydrogen exploration company, has announced today the close of its €3.4 million Seed financing round to run a technological pilot to image and quantify hydrogen systems in the ground. The funding round saw ... |
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