Universidad
Politécnica de Madrid

Clean Cities Spain ClimAccelerator: The fifth wave of urban innovation for a sustainable future

This accelerator specialised in urban sustainability seeks innovative solutions for our cities. Nearly 100 European start-ups have already participated in the programme, attracting €27M on average in funding. Applications are open until 1 April.

05.03.25

Clean Cities Spain ClimAccelerator, the accelerator programme run by the Universidad Politécnica de Madrid and supported by Europe’s leading climate innovation agency, Climate KIC, has launched its fifth call for applications. The initiative offers a unique opportunity to deep-tech start-ups to transform cities with its innovative solutions in areas like community retrofitting, green spaces, urban mobility, renewable energy, and data and information.

The programme seeks early stage start-ups with disruptive and scalable technologies and a committed team of at least two people. Furthermore, the companies must be incorporated for less than five years and be based in the European Union. Selected companies will have access to high level mentoring, specialised training in business and sustainability, international networking, and funding opportunities to take their projects to the next level.

The latest Davos summit highlighted the innovative contribution of startups as a main source of solutions for today's challenges, especially the quite relevant climate challenges confronting our society. Because of this, participating in this programme provides a unique opportunity for startups to accelerate their growth by connecting with key players in the ecosystem. Clean Cities boost the collaboration between entrepreneurs with experienced experts who share a deep commitment to sustainability. This enhanced programme is designed to empower these emerging companies to make a difference.

Four editions supporting European sustainable innovation

Nearly 100 start-ups from more than 18 European countries over the past four years empowered this accelerator as a key player in the climate European ecosystem.

With over €27 million in funding secured, these companies are transforming their innovative ideas into thriving international businesses, proving that sustainable developments can also be incredibly successful.

The Clean Cities ecosystem has also supported collaboration and worked as an ecosystem catalyst through a wide network composed by corporates, public institutions, investors and climate agents. Over the past four years, it has fostered connections with more than 200 experts who have participated throughout the programme in previous editions. Plus, 10 municipalities and 14 multinationals and foundations have actively collaborated in the programme, highlighting the value of co-creation and ecosystem building when it comes to climate entrepreneurship.

Don't miss your chance to be part of the solution! 

Visit the website http://www.cleancities-accelerator.com and apply before April 1st. 

About Clean Cities Spain ClimAccelerator

The Clean Cities Spain ClimAccelerator is an acceleration programme launched in 2020 with the support of Climate KIC, with the aim of having an impact on climate change in urban areas, as well as the commercialisation of clean technologies (clean tech). The programme is aimed at start-ups that develop solutions with special emphasis on transforming urban ecosystems so that they are climate neutral, from mobility to waste, energy or health. There are around 100 start-ups from more than 18 different countries that are members of the Clean Cities community.