Mantle8 secures Spanish permits, reinforcing Pyrenees as natural hydrogen hotspot
Spain grants permits covering approximately 960 km² across Navarra and the Basque Country for natural hydrogen and helium exploration Grenoble, France – 1 July 2026 – Mantle8, a natural hydrogen exploration company, has been granted two investigation permits by Spain’s Dirección General de Política Energética y Minas. The permits, Aralar I and Aralar II, cover approximately 960 km² across Navarra and the Basque Country. The permits authorise non-invasive studies for natural hydrogen […]
France doubles down on natural hydrogen as Mantle8 secures exclusive Pyrenees permit
French exploration permit signals growing commitment to natural hydrogen. Mantle8 follows Series A with launch of Hydrogeco Project to develop natural hydrogen in the Pyrenees. Grenoble, France – 3 June 2026 – The French government has awarded an exclusive five-year exploration permit for natural hydrogen and helium to G&OL SAS, a wholly owned subsidiary of Mantle8. The “Permis de Comminges” covers 739 square kilometers across the departments of […]
Mantle8 raises €31M in Series A funding to prove commercial viability of natural hydrogen production
Grenoble, France – 13 May 2026 – Mantle8, the Grenoble, France based natural hydrogen exploration company, has raised €31M in Series A funding to leverage its proprietary technology stack across a global exploration and drilling campaign targeting the first commercially exploitable reservoir of high-purity natural hydrogen. The round was led by Sandwater and includes Breakthrough […]
Mantle8 strengthens leadership to accelerate scale-up of natural hydrogen exploration and commercial partnerships
Grenoble, France – 27 March 2026 – Mantle8, the deep-tech geoscience company pioneering natural hydrogen exploration, is strengthening its leadership team as it moves into its next phase of growth, appointing Sylvain Marcant as Chief Commercial Officer to support international expansion, strategic partnerships and commercial scale-up. The appointment comes as Mantle8 transitions from exploration validation […]
Mantle8 awarded €2.1M EU Just Transition Fund grant to scale its natural hydrogen technology platform
Grenoble, France – 10 March 2026 – Mantle8, a European natural hydrogen exploration company, has been awarded a €2.06M grant under the European Union’s Just Transition Fund to accelerate the development of its natural hydrogen technology platform in Grenoble. The funding is part of the FEDER/FSE+/JTF 2021–2027 programme managed by the Région Auvergne-Rhône-Alpes and supports […]
Mantle8 secures strategic partnership with S³ to scale natural hydrogen exploration
Grenoble, France – 24 February 2026 – Mantle8, the French geoscience company pioneering natural hydrogen exploration, has entered a long-term strategic partnership with S³ – Smart Seismic Solutions, securing access to a dedicated fleet of seismic sensors and associated field services, providing Mantle8 reliable subsurface data of the highest quality, as required for the imaging […]
Mantle8 appoints HR Director and expands in Grenoble to support global talent strategy
Grenoble, France – 17 February 2026 – Mantle8, the deep-tech geoscience company pioneering natural hydrogen exploration, has strengthened its leadership team with the appointment of a Human Resources Director and the opening of a new office in Grenoble. Mantle8 today announced the appointment of Laurence Tiberghien-Portaz as Human Resources Director, further reinforcing its leadership team […]
Mantle8 featured in Les Echos following successful seed round
Following the announcement of our successful seed round, we were recently featured in several renowned publications including French financial newspaper, Les Echos
Natural hydrogen exploration startup, Mantle8, raises €3.4m seed round to scale revolutionary technology
Mantle8, a French natural hydrogen exploration company, has announced today the close of its €3.4m seed financing round with investment from Kiko Ventures and Breakthrough Energy Ventures Europe (BEV-E), with participation from prominent angel investors.
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