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Top 10 European Cleantech Companies 2026
Europe leads the global clean energy transition with €800B in green investment planned through 2030 under the European Green Deal. The continent hosts the world's largest offshore wind capacity, the most ambitious hydrogen economy, and battery megafactories reshaping supply chains away from Asia. In 2025-2026 European cleantech attracted €120B in private investment — more than the US and China combined in key segments. These companies are engineering the infrastructure of a post-carbon economy at planetary scale.
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