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From idea to investment – support & funding for start-ups at every stage

CATAL1.5°T supports your ideas and provides your climate venture with funding, know-how and access to networks of domain experts, mentors and investors.

What’s new at CATAL1.5°T?

Applications for our start-up programmes are open

Ideator, first-time founder or serial entrepreneur – no matter your experience and the stage of you climate tech solution, you can find your support programme here.
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Tackle climate change with your community!


Climathons are our ideation programme: the events bring together local citizens, innovators and entrepreneurs with ideas that address the challenges of climate change with technology. Take part and create an impact!
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Get your climate tech solution market-ready!


Our pre-accelerator for climate tech start-ups provides you with training, technical support and funding. Let’s take your prototype to the next level!
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Scale your way to VC!


Your climate venture is already well on its way to making a positive impact on climate change? Prepare to successfully navigate the challenging growth phase – with training & coaching, networking and repayable grants!

About the CATAL1.5°T Initiative

The Initiative is is funded by the international Green Climate Fund (GCF) and the German Federal Ministry for Economic Cooperation and Development (BMZ). It is implemented by Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH in cooperation with top-tier global and regional partners.

Learn about us