Swiss startup BTRY AG has secured €4.9 million in an oversubscribed Seed round to advance its ultra-thin solid-state batteries. The company claims its batteries offer a rare combination of fast charging, stability across extreme temperatures, and high safety within a compact design.
The investment round was led by Redstone VC, joined by Bloomhaus Ventures, Linear Capital, Kickfund, the Kick Foundation, and CustomCells founders Leopold König and Torge Thönnessen. Existing supporters HTGF (High-Tech Gründerfonds) and Zürcher Kantonalbank (ZKB) also renewed their participation.
“The oversubscribed round confirms strong investor confidence from experienced DeepTech and industrial backers. Working closely with this international consortium will enable us to transform world-class research into a scalable product,” said Dr. Moritz Futscher, CEO and co-founder of BTRY AG.
The new funding aligns with broader European momentum in battery technology. Estonia’s Jälle Technologies recently raised €2 million to enhance battery recycling and material upcycling. Sweden’s DREV secured €2.8 million to scale contamination-control systems for battery production, while Germany’s Terra One obtained €150 million to expand grid-scale energy storage.
BTRY AG’s successful €4.9 million seed round underscores Switzerland’s growing position in the solid-state battery race amid Europe’s accelerating energy innovation sector.