InnoEnergy-Backed Geolinks Raises €6 Million to Improve Underground Monitoring for Energy and Raw Materials

In April 2024, InnoEnergy, the innovation engine for sustainable energy supported by the European Institute of Innovation & Technology (EIT), invested in French deeptech startup Geolinks to support technologies critical to Europe’s access to raw materials and underground energy storage for the green transition. The company has now secured a €6 million funding round to industrialise its subsurface monitoring solution, FlowTerra™. 

The funding will support the solution’s deployment from 2026 in areas including mining, carbon capture and storage and natural hydrogen, improving how underground resources and storage sites are monitored.

From Research to First Investment

Originating from research at the Centre National de la Recherche Scientifique (CNRS), Geolinks has developed a patented subsurface monitoring technology for key areas of the energy transition. By generating dynamic images of the subsoil, the technology supports the identification of critical battery raw materials, helps monitor underground CO₂ and hydrogen storage sites, and enhances safety by detecting fluid movements that could indicate industrial or operational hazards, thereby supporting safer working conditions at industrial sites.

As part of its initial investment in April 2024, InnoEnergy led a €1.5 million capital injection in Geolinks, alongside other private investors. This funding and support helped accelerate the company’s time-to-market, support its international expansion and grow its team.

€6 Million to Industrialise FlowTerra™

On 3 February 2026, a €6 million funding round was announced to industrialise FlowTerra™, Geolinks’ dynamic subsurface modelling solution. By improving the detection and management of underground resources and storage sites, the technology addresses Europe’s limited domestic access to critical raw materials and underground energy storage capacity, both of which are essential for the green transition towards cleaner energy systems. The round brought together Calderion, the French Tech Seed Fund managed by Bpifrance on behalf of the French State, BRGM Invest, and InnoEnergy.

This reinvestment renews our confidence in Geolinks and in the team’s ability to transform a breakthrough technology into a leading industrial solution. FlowTerra™ opens major prospects for dynamic subsurface modelling, with strategic applications in mining, CO₂ capture and storage, natural hydrogen, and geothermal energy.

Karine Vernier, CEO France at InnoEnergy.

We are entering a key phase of our development: commercial deployment. FlowTerra™ marks the transition from technological proof to an operational solution capable of providing industry players with continuous and reliable subsurface visibility.

Jean-Charles Ferran, Co-founder and President of Geolinks Services.

With continued support from InnoEnergy alongside other investors, Geolinks is well positioned to bring its subsurface monitoring technology to market and contribute to Europe’s energy transition.

Learn more about Geolinks