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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?

Participants from the first Bootcamp for the Acceleration Program of the CATAL1.5°T Initiative

First CATAL1.5°T Bootcamp for the Accelerator Program Bootcamp held in Latin America

25.05.2024Josué García Pérez, GIZ

Ten Climate Tech start-ups from four Latin American countries have begun their acceleration process with the first CATAL1.5°T Acceleration Bootcamp. During the program they will have access to funding of 100K euros, mentoring and networking sessions to enhance their development.

Radiant smiles light up the Global Workshop of the CATAL1.5°T Initiative as participants come together in a spirit of collaboration and innovation.

Empowering Climate-Tech Start-ups: Insights from the CATAL1.5°T Global Workshop 

28.05.2024Angeli Regala, GIZ

CATAL1.5°T Initiative to advance efforts in supporting climate tech start-ups

a group of men discussing their climate tech solutions in the field, showing their commitment to sustainability

CATAL1.5°T launches its acceleration program dedicated to SMEs and start-ups in West Africa

24.04.2024Morgane Awu, Communication Officer, Investisseurs & Partenaires

The CATAL1.5°T acceleration program is officially launched in West Africa. 30 companies in the climate sector will benefit from technical and financial support to accelerate their growth.

Panel discussing Climate Tech issues at the FLII in Mexico.

CATAL1.5°T present at the Latin American Impact Investment Forum 2024

05.03.2024Erika Sánchez, GIZ

In the framework of the Latin American Impact Investment Forum (FLII), which took place from 27 to 29 February 2024 in the city of Merida, Yucatan in Mexico, the CATAL1.5°T Initiative led the panel "Can impact investment in Climatech contribute to green recovery in Latin America?"

A womanengaged in discussions about sustainability and climate tech solutions

Become a CATAL1.5°T Partner in West Africa

06.03.2024Alex Calvin Gbetie, GIZ

Apply to become a CATAL1.5°T ESO in West Africa and receive a grant up to 40,000 Euros to implement the CATAL1.5°T Pre-Accelerator Phase I in your local ecosystem in West Africa, to build a portfolio of climate tech ventures, offering solutions for reducing GHG emissions.

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Join the CATAL1.5°T Pre-Accelerator program Latin America

08.02.2024Alba Seibt, GIZ

Start-ups with an existing prototype and/or in the pre-commercialisation phase can benefit from the grant fund, specialised content and workshops, mentoring, thematic experts and networking.

Cover Image for the CATAL1.5°T Explainer Video

Launch of the CATAL1.5°T video

26.10.2023The catalist-Team

This video explains the CATAL1.5°T Initiative's purpose in less than three minutes

Members from the CATAL1.5°T Initiative participated in the Africa Startup Connect Week in Berlin and announced the regional platform in West Africa

We launched the CATAL1.5°T Platform West Africa @ Africa Startup Connect Week

23.11.2023Anna Deniz, GIZ

On November 23, 2023, Berlin hosted the launch of the CATAL1.5°T Platform West Africa, bringing together innovators and investors.

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CATAL1.5°T at the UNCCC Climate week in Panama

01.11.2023Milena Stolz, GIZ

The CATAL1.5°T Latin American platform hosted a one-hour panel discussion on opportunities & challenges for Climate Tech entrepreneurship promotion in Latin America on October 23rd, 2023.

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Launch of CATAL1.5°T Acceleration program for Latin American climate-tech startups

01.11.2023Milena Stolz, GIZ

Start-ups can now apply to receive access to workshops, experts, and the opportunity to receive funding up to €100,000 euros.

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Launch of the CATAL1.5°T Platform West Africa

23.11.2023 - 13:00 UTC+1

GIZ and Climate-KIC present CATAL1.5°T at the Africa Start-up Connect Week in Berlin

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