How much funding has Mantle8 raised?

Mantle8 has raised $39.4M in total funding, most recently a Series A round.

Who are Mantle8's investors?

Mantle8's investors include Kiko Ventures, Breakthrough Energy Ventures.

Where is Mantle8 headquartered?

Mantle8 is headquartered in Grenoble, France.

What industry is Mantle8 in?

Mantle8 operates in Climate Tech.

Mantle8

The first geology-based natural hydrogen exploration company.

Grenoble, France · Founded 2024 · $39.4M raised

Climate Tech

Headquarters: Grenoble
Employees: 11–50
Founded: 2024
Business Model: B2B

Website: mantle8.com
Total Funding: $39.4M
Last Round: $36.0M Series AMay 2026
Rounds: 2

About

Mantle8 is a French natural hydrogen exploration company combining geophysics, geochemistry, and seismic data to accurately detect natural hydrogen locations. Its proprietary technology visualizes entire hydrogen-generating systems to evaluate the amount and quality of hydrogen present, enabling identification of optimal reservoirs and targeting production at $0.80/kg. Founded in 2024 by geologists with 20 years of experience, Mantle8's geology-based approach halves project development time compared to trial-and-error drilling, and is scalable across the entire planet.

Summary

Mantle8 is a Climate Tech company based in Grenoble, France, founded in 2024. It has raised $39.4M in total across 2 rounds, most recently a $36.0M Series A round in May 2026. Investors include Kiko Ventures and Breakthrough Energy Ventures.