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Green City Solutions

Berlin & Bestensee

About us

Founding Year: 2014   |   Location: Berlin & Bestensee

Green City Solutions wants to make fresh air in urban areas available to everyone. That’s why they have developed the world’s first bio-tech filter to quantifiably improve air quality: The CityTree.

Smart City Status: Our vision is a world in which people in cities can live healthy lives. We want to create living conditions that enable everyone worldwide to breathe cleaner air over the long term.

You can reach us:

Use Cases




Improving air quality in Ludwigsburg

As part of a pilot project to improve air quality in Ludwigsburg, filtration expert MANN+HUMMEL has donated a CityTree to the city. With the CityTree, MANN+HUMMEL would  like to test sensors for fine dust or other harmful gases in order to use them in future digital products.



Fresh and Healthy Air for the London Borough of Wandsworth

Putney High Street is relying on green technology to improve the cycling and walking conditions of their residents.



Berlin City Plaza Turns Into a Clean Air Zone

Two Clean Air Zones were created on the Walter-Benjamin-Square in Berlin to improve its visitor's ambient conditions.




Fresh Air in Berlin's B-Part Co-Working Space

Urban natural filters have been implemented to improve the outdoor and indoor air quality in a co-working area in Berlin.



Clean Air for Students

A natural moss filter with smart IoT technology was implemented in Hampstead Hill School to improve the local air quality.


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