Call 2024

Cities face an enormous challenge: They must become more resilient and healthy places to live while reaching net-zero-emissions in just a few short years. The Clean Cities Spain ClimAccelerator is an accelerator program, launched in 2020 with the support of EIT Climate-KIC, with a strong focus on the impact of climate change in urban areas and the commercialization of clean technology (cleantech). It targets start-ups that are developing solutions with special focus on transforming city systems to become climate neutral—from mobility to waste, energy to health, and the built environment. The programme is looking for start-ups with the capability to contribute to systemic change in cities, and that can work in multi-stakeholder ecosystems. The accelerator focuses on system-level innovations that address the impact of climate change in urban environments.

This programme is directly linked to several cities around Europe. Additionally, we have participation from other actors from the ecosystem such as international corporates, investors and SMEs. This consortium represents different sectors which are compromised with initiatives such as this one. All these entities have been and are working in active strategies and policies related to sustainability and climate change.

Deadline: May 10th at 12PM CEST!

For further information, please check our Terms & Conditions for this edition.



If you are a startup that is acting or that can provide solutions in any of the previous topics and you also meet the following requirements, this is your accelerator!

The jury will be constituded by profiles related to the investment field and of an international nature. The jury members can come from different types of institutions, both from the private and public spheres, but always with an investor or facilitator profile. It will be made up of an odd number of members to facilitate decision-making by it.

Based on the eligibility and criteria requirements, up to a maximum of 15 startups will be selected to join the programme.


Structure and Topics

Most of the activities will be online or hybrid. We reserve the right to carry out the activities in person.

This 2024 edition will be focused on two main aspects: connection with the ecosystem and investment. Please, note only one selection proces will be organized for both stages.

Connection with the ecosystem: This first stage will be focused on boosting connection and collaboration with key agents from the innovation and entrepreneurial ecosystem in Spain and Europe. The multi-level and multi-actor approach is key for more impactful actions according to climate neutrality within urban areas.

Investment readiness, scalability and internationalization: The goal of this second stage focuses on increasing the global network of contacts in new markets, establishing investment knowledge and analyzing the start-ups’ scalability.

Topics within the Clean Cities programme are included in the following section

What do we offer

As it is expected the participation from competitive startups, this programme will be mainly customisized to the startups needs. However, these in-kind services could be:

Note*: International event on entrepreneurship will be held in person in Madrid from 5 to 7th of June 2024.


April 5th 2024
Application open date
May 10th 2024
Application closing date
Week of May 20th 2024
Selection process
May 30th 2024
Kick off
5-7th of June
International event on entrepreneurship in person in Madrid

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