CleanTech Hackathons in Europe

This page lists 4 upcoming CleanTech hackathons, challenges and innovation competitions across Europe. Hackathon Hub continuously tracks CleanTech events and shows dates, locations, application deadlines and organizer information for each one. The listed events span 4 countries, with venues in Espoo, Basel and Amsterdam among others. 2 events are explicitly beginner-friendly. 2 hackathons offer prize money. The next event to start is "Junction 2026: European Tech Renaissance" on 13 November 2026. The list is checked and extended continuously as new events become known.

Currently on Hackathon Hub

  • Upcoming hackathons: 4
  • Countries: 4
  • Cities: 4
  • Next event: Junction 2026: European Tech Renaissance · 13 November 2026
  • Last updated: 11 November 2026

Data as of 2026-11-11 · figures on this page come from the listed events.

Upcoming events

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Frequently asked questions

Where can I find upcoming CleanTech hackathons in Europe?

Right on this page: Hackathon Hub lists 4 upcoming CleanTech hackathons with dates, locations, deadlines and a link to register.

Which cities host CleanTech hackathons?

Currently mostly Espoo, Basel, Amsterdam and Drogheda. In total the events are spread across 4 cities in 4 countries.

Are there beginner-friendly CleanTech hackathons?

Yes. 2 of the currently listed CleanTech events are marked beginner-friendly by their organizers, often with mentoring and on-site team matching.

How often is this list updated?

Hackathon Hub reviews and extends the events continuously. The most recent entry on this page was updated on 11 November 2026.

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