June 19, 2026
Mantle Energy
Mantle Energy raised $5 million in seed funding to advance its concept of producing geothermal-grade temperatures in existing oilfields.
- Round
- Seed
- Amount raised
- $5M
- Lead investor
- —
- Industry
- Energy
- Headquarters
- United States
- Employees
- 2-10 employees
- Website
- mantle.energy
- View profile →