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The Team

Teamname: heygrün

Members: Daniel Porzig, Marc Müller, Louis Born






Tackling climate change

The effects of climate change are becoming increasingly noticeable. Green roofs are an effective and necessary measure to mitigate the effects of climate change and make cities liveable in the future.

However, 90% of new flat roof are currently not greened. One of the reasons for this is that it is currently still very difficult for homeowners to green their roofs and requires a high degree of personal effort.

Plan your green roof today.

The heygrün platform addresses this problem and digitalises the entire process from the initial enquiry through to maintenance. We offer an all-round carefree package with roof inspection, subsidy application and craftsman coordination.

The customer gets an innovative overall solution and the craftsman saves process costs and more roofs can be greened in the same amount of time.

How did you come up with your idea?

When you think about the city of the future, you always see beautiful green cities. But the reality is different, unfortunately. When you walk through the city, you see many blank facades and monotonous roofs. 

We thought about why this is the case and how we could convince more homeowners to green their roofs.

What are you studying/working or what have you studied?

Daniel Porzig (CEO) worked as an innovation consultant and has already developed numerous digital business models for clients in the construction industry. 

Louis Born (CTO) is completing his Master's degree in Applied Cognitive and Media Science with a focus on computer science and worked as a software developer at Check24. 

Marc Müller (COO) is a qualified roofer and state-certified construction technician and owner of Roof-Visions, a commercial agency for green roof products.

What has Gateway ESC helped you with?

Gateway has helped us in several feedback rounds with our application for the EXIST start-up grant. Gateway also regularly invites us to exciting events where we can present our solution to a wide audience.

The modern co-working space at Innodom promotes dialogue with other start-ups.