StartingUp: blue activity secures €8.5 million for biocide-free cooling water treatment

blue activity Gründer Michael Simon und Lars Havighorst

17. March 2026

The Heidelberg-based clean tech start-up blue activity has successfully closed a significant funding round. With an unconventional biological approach, the team is challenging traditional methods of industrial cooling water treatment. A closer look at the business model, the billion-euro market, and the challenges of scaling.

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