Cleantech: 10 companies that raised the most in 2025

European cleantech companies raised €3.1 billion in 2025, with investment activity concentrated around clean energy infrastructure, industrial decarbonisation, advanced materials, recycling technologies, carbon management, and electrification. Large infrastructure and energy-transition projects attracted the biggest rounds of the year, particularly in areas such as battery storage, renewable energy, clean fuels, electric vehicle infrastructure, and low-carbon industrial production.