ClimateTech Hackathons in Europe

This page lists 14 upcoming ClimateTech hackathons, challenges and innovation competitions across Europe. Hackathon Hub continuously tracks ClimateTech events and shows dates, locations, application deadlines and organizer information for each one. The listed events span 9 countries, with venues in Saint-Martin-d'Hères, Manchester and Aarhus among others. 13 events run on site or hybrid, while 1 can be joined fully online. 3 hackathons offer prize money. The next event to start is "Hack your Campus" on 21 October 2026. Every entry is verified against the organizer's own website before it goes live.

Currently on Hackathon Hub

Upcoming hackathons: 14
Countries: 9
Cities: 14
Next event: Hack your Campus · 21 October 2026
Last updated: 7 October 2026

Data as of 2026-10-07 · figures on this page come from the listed events.

Upcoming events

Hack your Campus · 2026-10-21 — 2026-10-23 · Saint-Martin-d'Hères, FR
Green Economies Youth Hack - Young Manchester · 2026-10-21 · Manchester, GB
trans4num INSPIRE Hackathon 2026 · 2026-10-22 — 2026-10-23 · Aarhus, DK
EIT Water Hackathon · 2026-10-23 — 2026-10-25 · Sofia, BG
Copernicus Marine Service Hackathon 2026 · 2026-10-29 — 2026-10-31 · Amsterdam, NL
European Ocean Pact Hackathon · 2026-10-29 — 2026-08-25 · Online
Smart City Hackathon Pforzheim · 2026-11-06 — 2026-11-08 · Pforzheim, Baden-Württemberg, DE
Guardians of the Earth – Space for Change · 2026-11-07 — 2027-03-19 · Bremerhaven, Bremen, DE
Climathon Frankfurt Rhine-Main 2026 · 2026-11-10 — 2026-11-11 · Frankfurt, DE
GreenBonn Hackathon 2026 · 2026-11-13 — 2026-11-21 · Bonn, DE
InnovateTheAlps Hackathon · 2026-11-13 — 2026-11-15 · Chiemgauer Alpen, DE
NASA Space Apps Challenge Valencia 2026 · 2026-11-14 — 2026-11-15 · Valencia, ES
Hackathon Across 2026: Innovating for Water in the Cross-Border Mediterranean Region · 2026-11-20 — 2026-11-22 · Perpignan, FR
ENERGY data visualisation Hackathon · 2026-11-21 · Brussels, BE

Some information is collected automatically and is provided without warranty. Dates, deadlines and conditions may change · please verify on the organizer's official page before using this data. Details · Report an error

Frequently asked questions

Where can I find upcoming ClimateTech hackathons in Europe?

Right on this page: Hackathon Hub lists 14 upcoming ClimateTech hackathons with dates, locations, deadlines and a link to register.

Which cities host ClimateTech hackathons?

Currently mostly Saint-Martin-d'Hères, Manchester, Aarhus and Sofia. In total the events are spread across 14 cities in 9 countries.

Are there beginner-friendly ClimateTech hackathons?

None of the events in this list is explicitly flagged as beginner-friendly right now. You can filter for beginner-friendly hackathons Europe-wide on the events page.

Can I join ClimateTech hackathons online?

Yes, 1 of the listed ClimateTech events run fully remote, so you can take part from anywhere.

How often is this list updated?

Hackathon Hub reviews and extends the events continuously. The most recent entry on this page was updated on 7 October 2026.

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