24h Hackathon   

Fri 09:30 to Sat 17:00



Selnaustrasse 25   

Be part of the world’s largest climate hackathon!


80+ participants

16+ teams


16+ experts & coaches

3 challenges

Bring your ideas and become part of an innovative community of students, startups, entrepreneurs, experts, innovators, activists, change makers, coders and interested citizens to jointly develop ideas and projects to solve Zurich’s climate challenges.

Winning Teams

Our jury awards up to 10 winning teams.

Global Award

For each city there is a team selected that can compete with the solutions of the other Climathon cities for the Global Climathon Award.


I loved the innovative spirit. It just makes it really fun to tackle climate issues in this 24h «Hackathon» setup – and at the same time it allows you to get super interesting new ideas and insights into different topics!«



The Zurich Climathon was a place for us to validate our idea in front of a community of innovators and gain visibility which had a great impact for us. «


Startup Team

The climathon experience is highly dynamic. Motivated participants give their very best to generate climate solutions to the most pressing problems. As an expert, it’s inspiring to be part of their journey.«


Team Coach

Climathon Zurich allowed me, in a single stroke, to meet enthusiasts that will set the road for a more sustainable future and take a glimpse at what that future might look like.«




We are proud to support innovative minds helping solve today’s biggest challenge. Are you joining?

Become a sponsor!

Want to support our innovators and help create a positive impact?

Join as challenge owner!

You have a challenge that can be solved by our community?

Support as expert or coach!

Are you an expert in your field and want to support our talents?

The Project Team

Laurene Descamps

Project Lead

Teodora Radulescu

Project Coordination

Viktor Vogt

Media & Communication

Luzia Schuler


Want to join as volunteer? We can always use some helping hands!


About the Climathon

The Climathon was founded in 2015 in the run-up to the historic Paris climate agreement and has grown enormously since then.

It takes place every year in a growing number of cities around the world. In 2021 the Climathon will be held in 145 cities around the globe.

The Climathon Zurich is taking place for the 6th time already and offers citizens the opportunity to become active for the climate and initiate systemic changes.

6500+ participants
145 cities
600+ ideas
6 continents

Covid measures

We will be preparing the event in line with the necessary protocols for minimising risks regarding COVID-19. Certificates will be required. Sanitisers will be provided and other measures recommended then by the confederation and cantonal institutes will be in place.