The Heidelberg-based cleantech company, founded in 2021 by Lars Havighorst and Michael Simon, focuses on the "sustainable treatment of cooling water in industrial evaporative cooling systems."
blue activity has raised €8.5M across 1 funding round from 3 investors, most recently a round in Mar 2026. Based in Heidelberg, Germany; active in Cleantech. Data as of 7 Aug 2026.
Timing: too soon vs cohort gap · momentum unknown. Funding-only estimates, not predictions and not investment advice — see signals.
| Date | Stage | Amount | Investors | |
|---|---|---|---|---|
| 2026-03-24 | Other |
| €8.5M |
| Angel Invest Ventures,Venture Stars,Wind Capital |
| View deal → |
