Connecting Cities, Corporates, and Innovators to Deliver Real Cleantech Solutions
the world’s leading global cleantech network
Connecting Global Cleantech Leaders
WHO WE ARE
The International Cleantech Network (ICN) is a global alliance of 22 leading cleantech clusters across four continents, specializing in thematic areas such as energy, circular economy, watertech, and beyond.
Works with partners like C40 Cities, ICLEI, and the Solar Impulse Foundation to help cities, regions, and companies tackle pressing environmental challenges.
Acts as an official observer to COP30, bringing the voice of innovation networks into global climate discussions.
Understands and navigates international funding mechanisms to turn climate ambition into real action.
130+
CITIES AND REGIONS
Connecting local authorities with cleantech expertise and solutions.
250+
UNIVERSITIES
Our network creates a strong knowledge base for innovation and cleantech development.
7,000+
START-UPS & SMES
Innovators are engaged through ICN clusters, pioneering green technologies and scaling global impact.
Local Action. Global Impact.
why work with us
We connect cities, corporates, and EU consortiums with cleantech innovators from across four continents.
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ICN helps cities transform complex sustainability goals into actionable cleantech projects — drawing on proven solutions from places like Rio de Janeiro, Cape Town, Vancouver, Copenhagen, and New York State.
Through our long-standing collaboration with C40 Cities, we connect local authorities with innovative solution providers and peers facing similar challenges, enabling fast knowledge transfer from city to city — turning local issues into shared, solvable ones and delivering small solutions to big urban challenges. -
ICN supports forward-thinking companies like Novafos and Metro Vancouver in finding and co-developing cleantech innovations that solve real operational and environmental challenges.
Through ICN, corporates gain access to a curated network of 7,000+ startups and SMEs, as well as valuable insights into funding mechanisms across the EU and beyond — enabling partnerships with cities and innovators that accelerate sustainable transformation and deliver tangible impact. -
ICN engages in both smaller, research- and knowledge-driven consortiums of around five partners, and large-scale industrial projects with up to 50 partners — including one with a total investment of nearly €600 million.
We understand the dynamics of various EU funding programs and connect the right mix of cities, companies, and researchers to turn cleantech ideas into real-world impact.
Collaborating Across Sectors and Borders
Partnerships
ICN drives global impact through powerful partnerships that unite public and private leaders in cleantech innovation. Together, we accelerate the transition to sustainable industries, open new markets for green technologies, and create lasting value for our clusters and their members. Some of our valued past and present partners include:
Project Spotlight
Pioneering Europe’s Hydrogen Future
ICN is working with leading European partners on the HI2 Valley project, a large-scale clean hydrogen initiative in Austria.
Supported by €20 million in Horizon Europe funding, the project brings together around 50 companies with a total investment close to €600 million to decarbonise heavy industry and strengthen Europe’s hydrogen corridors.
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Funding Programmes We Work With
Our projects — as well as those led by ICN members — are financed through a range of European and international funding programmes, both current and past. The selection below highlights key initiatives supporting cleantech collaboration and innovation.
