Exergon is a Paris-based venture capital firm founded in 2022 that invests in deeptech companies advancing the energy transition.
The firm targets European innovations in energy production, mobility, hydrogen, energy storage and related fields.
It participated in the 2025 seed round for TaiSan, a developer of advanced sodium-ion battery electrolytes.
Seed funding to advance compact sodium‑ion cells for e‑bikes, light EVs and power tools; pilot tests, pack demos and scaled precursor manufacturing planned.
