Metabolic ACT

Activating Circular Transformations: A digital platform for cities

Supporting cities as they join forces with local innovation ecosystems to achieve their goals

Metabolic ACT is a platform that supports city officials in setting up open innovation challenges and assessing submissions that work towards their circular city goals. The platform’s interactive dashboard shows how ventures, entrepreneurs, and private citizens can potentially contribute towards these goals, as well as their circularity and impact realization potential. It enables cities to identify high-potential solutions and activate their private innovation ecosystems. The platform also allows applicants who are submitting solutions to gain insight into their impact and communicate infrastructure needs to the city.

  • Partners: ICLEI, Circle Economy, Ellen MacArthur Foundation
  • Funder: MAVA Foundation

We are currently looking for user testers!

If you are a challenge organizer, city official or an urban entrepreneur, we invite you to sign up for user testing.


Transitioning cities to the circular economy relies on collaboration

Local governments around the world are developing roadmaps for a circular and sustainable system. But while cities can change policies and planning procedures, many circular solutions emerge out of the private innovation ecosystem. Entrepreneurs, ventures, start-ups, and other urban changemakers are a needed puzzle piece for cities to achieve their targets and goals. To activate the potential of this ecosystem, better tooling can allow cities to communicate targets to changemakers and simultaneously enable them to showcase their contribution. Metabolic ACT serves to fill this gap by providing a centralized platform for cities to:

  • Define targets for specific circularity challenges
  • Invite changemakers to innovation challenges
  • Assess the circularity and impact realization potential of different changemakers
  • Map the overall needs and strengths of the city innovation ecosystem


Cities Consultant


For more information about this project, please get in touch.