Meet the Finalists of the Circular City Challenge

Freitag, 16. Juni 2023 - Donnerstag, 16. Juni 2022

Kurfürstendamm 229, 10719 Berlin
POP KUDAMM - Place of Participation

Organised by Circular Berlin alongside Circular Munich, Circonnact, Materialkreislauf, and other diverse Promotional and Jury Partners, the Circular City Challenge called on innovators of the Circular Economy to find answers to the challenges of the transformation to a circular urban system. It aimed to connect the best innovators and solutions with the needs of cities; where the Circular Economy was considered a sustainable approach to implementing future solutions locally.

After 7 months; 130 applications; and 20 Jury members' reviews from over 4 cities, we have finally arrived at the final stage of The Circular City Challenge!

Our finalists and semi-finalists have been selected and it is now time to share their work with you!

Please celebrate with us the most innovative solutions of the Circular City Challenge.


The project aims at creating new industrial symbioses that enable the production of circular insulating materials and high-quality renewable raw materials by sparing CO2. Underlying is a circularity model that establishes new regional bio-based value chains and advances resource efficiency in cities and municipalities. The intra- and intersectoral model is based on the cultivation of industrial hemp, one of the fastest-growing and most versatile crops.

Labor Tempelhof
They provide an answer to the climate and resource crisis in the Labor Tempelhof. Clean energy, phosphor toilets, fresh food, circular packaging, or new mobility: they are already showing technologies today for the world of tomorrow. Innovative, scalable, circular.

FLORIS Catering
With the FLORIS composting machine, cities and municipalities take a big step toward sustainability and climate friendliness. The goal of reducing food waste by half by 2030 (currently 90 kg per person per year) could be achieved in this way. The composting system could become a beacon project for other cities and municipalities.

FairCup GmbH is a young and innovative company in the field of reusable cup systems, which offers a wide product portfolio, from cups to bowls to menu boxes, and lid combinations where you can find a product for every application for package reusable options.

The open network WeitergebenOrg connects the participating sectors (furniture manufacturers, dealers, SecondHand, logistics, repair and disposal) to a furniture circular system. Weitergeben offers an efficient system to bring used furniture into further use, which means less waste furniture being incinerated.

Concular urban Hubs
Concular meets cities, municipalities & counties. Through Concular Urban Hubs, regional material cycles are created with local partners in individual, adapted models. In different locations, a local infrastructure for circular construction is built up, consisting of companies, politics, storage & logistics and suitable digital software by Concular. Through this, circular material cycles can be implemented locally.

Sleepify is an award-winning startup in Vienna creating a circular economy mattress solution for hotels which improves their environmental footprint in an accessible, effortless way whilst putting an end to mattress waste. Sleepify’s circular economy solution eliminates the burden of mattress waste disposal for cities, whilst enabling the hotel sector to become more sustainable, benefitting local cities with transitioning hotels and the wider business community to circular economy approaches.

Farming-as-a-Service Platform makes growing and harvesting sustainable Food in Cities available on-demand, as easy as eating, and affordable for all. Providing an Ecosystem of Shared Vertical Impact Farms that fit in/on any urban building type b2b/c users enjoy the benefits of sustainable farming within 1km of where they live, learn, or work. Reducing all Space, Effort, Knowledge, and Capital Barriers all Urbanites can engage 365 days a year in edible climate Action - anywhere at any time.

The Agenda:

16.00-18.00: Exhibition doors open - selected projects from the Circular City Challenge will be showcased.

18.20-18.30: Welcome session - information on the Circular City Challenge journey.

18.30-19.10: Presentations from the Finalists.

19.10-20.00: Panel discussion.

20.00-20.30: Networking evening.