Extrajool
French tech company | Builders Republic
About
Cleantech company building compact machines that convert low-grade industrial waste heat into electricity — based on a patented Ericsson-cycle engine with a liquid piston that reduces friction losses, targeting the lower temperature ranges found across thousands of factory sites to cut their power bills and emissions.
Key facts
- Status
- Active
- Sectors
- Climate, Cleantech & Energy
- Latest stage
- Seed
- Founded
- 2023
- City
- BASSENS
- Region
- Nouvelle Aquitaine
- Tracked rounds
- 1
- Amount raised
- 1.0 M€ raised since 2020
Funding rounds
- Seed — 2025