Spiral Hydrogen raised €3.4M in a pre-seed round announced on April 30, 2026. Spiral Hydrogen is developing a rotating, bubble-free electrolyser designed to improve the efficiency of green hydrogen production.
Spiral Hydrogen is developing a rotating, bubble-free electrolyser designed to improve the efficiency of green hydrogen production.
Spiral Hydrogen, based in Tartu, Estonia, announced €3.4M in pre-seed financing on April 30, 2026.
Participants include Norrsken Evolve, Superangel, byFounders.
Toulouse-based company aims to become a new flagship of the French aeronautics industry with its electric aircraft designed for training and regional passenger transport.
The deep tech company from Alzenau, founded in 2014 by Peter Geigle, is focusing on an alternative to lithium-ion batteries.
Subra is a Danish deep-tech developing revolutionary superconductor solutions for zero-loss power transmission and fusion energy.