Mantle8
European natural hydrogen exploration company developing geoscience-based technologies for subsurface resource identification.
About
Mantle8 is a European natural hydrogen exploration company founded in 2024. The company develops geoscience-based technologies to identify potential natural hydrogen resources and analyze hydrogen-generating systems in the subsurface. They aim to translate scientific research into scalable industrial technologies for future hydrogen production.
Key facts
At-a-glance profile data
- Website
- mantle8.com
- Headquarters
- Grenoble, Auvergne-Rhône-Alpes, France
- Founded
- 2024
- Total funding
- $37M (Series A)
- Business model
- B2B
- Tags
- SustainabilityDeep TechEnergyGeoscience
Funding rounds
| Date | Round | Amount | Post-money | Lead investors |
|---|---|---|---|---|
| 1 May 2026 | Series A | $31M | $44M | Sandwater |
| 10 Mar 2026 | Grant | $2M | - | - |
| 3 Mar 2025 | Seed | $4M | - | Breakthrough Energy Ventures Europe (BEV-E) |
Tech stack
Detected on mantle8.com, last scanned 18 Sept 2026. Run your own scan
- Frontend
- jQuery
- SEO
- Rank Math
- CMS / Builders
- WordPress
- CDN
- Cloudflare
- Email provider
- Microsoft 365
Frequently asked
What does Mantle8 do?
Mantle8 currently holds several exploration permits for potential natural hydrogen reservoirs.
How much funding has Mantle8 raised?
Mantle8 has raised a total of $37M in funding. The most recent round on record is Series A.