Circular Vienna

Circular City Challenge 2.0

Circular City Challenge 2.0 1080 810 Circonnact

The Circular City Challenge is an innovation project by Circonnact, Circular Berlin, Circular Munich and Materialkreislauf that aims to bring circular solutions to cities. The goal is to support their implementation locally and to increase the quality of life by contributing to climate neutrality and urban transformation. After the success in 2022, the project will be continued in Berlin, Vienna, Munich and Stuttgart and expanded to additional cities.

As the circular economy is a key instrument to achieve climate neutrality, we get support from the Klima-Innovationsfond Stuttgart to extend the challenge to expand the network of circular-minded cities.

To increase the implementation probability, we will invest more time determining and specifying the challenges with the local partners, including trainings and workshops for communes to understand the circular economy better, find international solution providers, and help them with the matchmaking with city or district representatives. In parallel, we will develop a guidebook to establish the challenge as a regular event.

Please see here for more information.

Currently, we are looking for partners from cities, districts, or neighborhoods who are willing to find and implement circular solutions locally. Contact Andreas Ellenberger via andreas (at) for more information.

Circular City Challenge – Final event Vienna

Circular City Challenge – Final event Vienna 1200 800 Circonnact

Wie sieht deine Stadt von morgen aus? Wir leben in spannenden Zeiten – der Zeit zur Transformation von einem linearen zum zirkulären System. Lerne zirkuläre Lösungen am 9./10. Juni in Wien Mitte, The Mall kennen!

Wir freuen uns attraktive zirkuläre Lösungen bei der finalen Ausstellung der Circular City Challenge zu zeigen! Diese wurden während der ersten Circular City Challenge in einem mehrstufigen Auswahlprozess von städtischen Partnern ausgewählt mit dem Ziel die Kreislaufwirtschaft zu fördern und florierende Städte zu schaffen.

Lerne LIVE Lösungen kennen, die einen nachhaltigen urbanen Lebensstil ermöglichen von FarmNow, Faircup, Cradle2Cradle NGO, HempstaticRemattress, Greenbag, Vytal und Fixfirst.

Parallel dazu gibt es inspirierende Gespräche mit ExpertInnen für Circular Economy. Siehe hier die Agenda der ExpertInnengespräche.

Mach bei der Circular Expedition mit und gewinne Gutscheine im Wert von 50€!

Die Initiative wurde als Kooperation der Organisationen Circular Berlin, Circonnact, Circular Munich und Materialkreislauf in Berlin, Wien, München und Stuttgart ins Leben gerufen. Das Ziel ist es, InnovatorInnen für kreislauffähige und nachhaltige Lösungen mit RepräsentantInnen der Städte zu vernetzen, um diese lokal umzusetzen.

Interessiert daran, das Projekt zu unterstützen? Kontaktiere gerne Andreas oder Vanessa.


What does your city of tomorrow look like? We live in exciting times – the time for transformation from a linear to a circular system. Learn about circular solutions on June 9/10 in Wien Mitte, The Mall!

We are happy to present attractive circular solutions at the final exhibition of the Circular City Challenge ! These were selected during the first Circular City Challenge in a multi-stage selection process by urban partners with the aim to promote the circular economy and create thriving cities.

Learn about solutions for a sustainable lifestyle LIVE by FarmNow, Faircup, Cradle2Cradle NGO, HempstaticRemattress, Greenbag, Vytal and Fixfirst.

In parallel, there will be inspiring talks with experts for Circular Economy. See here the agenda of the expert talks.

Join the Circular Expedition and win vouchers worth 50€!

The initiative was launched as a cooperation of the organizations Circular Berlin, Circonnact, Circular Munich and Materialkreislauf in Berlin, Vienna, Munich and Stuttgart. The goal is to connect innovators for circular and sustainable solutions with representatives of the cities in order to implement them locally.

If you want to support us in further developing the project, please contact Andreas or Vanessa.

Circular City Challenge 1.0

Circular City Challenge 1.0 1080 810 Circonnact

The Circular City Challenge is a project to connect existing innovative circular solutions with city representatives for the transition of a linear to a circular economy. The goal is to support their implementation locally and to increase the quality of life with conscious and careful use of resources. In 2022 this project has been started by Circonnact as local coordinators for Vienna with the organizers of Circular Berlin, Circular Munich and Materialkreislauf in the cities of Berlin, Vienna, Munich and Stuttgart.

We identified local challenges together with local partners like the DoTank Circular City and WieNeu+ for city development, representatives from the 8th district (Bezirksvorstehung Josefstadt & Agenda Josefstadt), and project developers such as Zukunftshof and dieHauswirtschaft. Local promotion partners like Impact Hub, Vienna Business Agency, The Mall, What about the Future, Circular Economy Forum Austria and Thinkubator helped to spread the word and activate their network to distribute the idea.

During inspiring webinars supported by Ellen MacArthur Foundation, Circle Economy and the Circular Economy Chairman for Prague we gathered momentum and motivated more than 100 applications of solutions at least in the status of implementation concept. The local partner chose their most appealing ideas and at the end of April which will be pitched. One important factor is that we are not looking for “the best solution” because we think every applicant already is a winner.

We support to implement the solutions by providing visibility of the solutions and engaging stakeholders such as city representatives, companies and citizens. In Vienna, we organize the final event “Circular City Challenge – Wie sieht deine Stadt von morgen aus?” on 9 & 10 June 2022 in the center of Vienna at The Mall to showcase the variety of circular solutions, activate their uptake, educate and connect companies, citizens and city stakeholders.

If you want to support us in further developing the project, please contact Andreas or Vanessa.

The Circular Vienna Community kickstarts

The Circular Vienna Community kickstarts 1920 1278 Circonnact

Circonnact hosts the Circular Vienna Community where people meet, exchange ideas and collaborate to promote circularity in Vienna and beyond.

The workshops and events of the Circular Economy Club Vienna to promote Vienna as a Circular City and gather key stakeholders have been a great success in the recent years. Vanessa and Andreas have been co-organizers of the club and ran several workshops to identify which improvements can be made. A main success was a joint request from more than 40 leaders in the city to the mayor which supported establishing the role of the Project Coordinator for circular construction in the municipality. 

At Circonnact, we want to ensure the people who have met and brought in their ideas will find a place to further collaborate, exchange ideas with like-minded people and promote circularity in the city of Vienna. We therefore host the Circular Vienna Community, with inspiring guest speakers and room for exchange of the participants. In our first event, Susanne Formanek, CEO and Co-Founder of Grünstattgrau, a research and innovation organization with a huge knowledge of greening buildings in an urban environment. They are involved in a lot of international projects to promote nature-based solutions, and offer qualification programs to become urban greening consultant. Susanne presented the 50 green buildings for Vienna project, an inspiring showcase on different solutions from green roofs, how to combine it with solar panels successfully, different ways on how to use green walls and the motivation of the local community to support these projects. 

After the inspiration we split into breakout sessions in smaller groups so that everyone could get into contact with other enthusiasts on circular economy. Because of the great feedback we will have further events for the community in 2021 – we will inform you if you register on this page. 

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