European Cleantech startup funding raised during May 2021.
In May 2021, 18 European Cleantech companies raised a combined €339M across 19 funding rounds, up 3430.1% versus May 2020. Sweden led by capital raised, and Adunare was the most active investor. Data as of 9 Jul 2026.
| €25M |
| Exeger | Debt | May 2021 | €17M |
| Exeger | Other | May 2021 | €15M |
| Physee | Series A | May 2021 | €8.0M |
| Black Bear Carbon | Other | May 2021 | €7.5M |
| Sylvera | Seed | May 2021 | €6.5M |
| Piclo | Other | May 2021 | €5.4M |
| Kando | Series B | May 2021 | €4.9M |
| Surfcleaner | Growth/Late | May 2021 | €4.8M |
| Emitwise | Other | May 2021 | €2.6M |
| Bintel | Other | May 2021 | €1.8M |
| Droople | Seed | May 2021 | €1.4M |
