The Sonnenberg Verein e.V. is a citizens' association for the Stuttgart district of the same name and has been working to improve the quality of life for local residents for almost 120 years. This includes the organization of various events, from lectures to summer festivals, but also initiatives, for example, for a better local Internet supply or sustainable district development.

You can find out more about the association here: https://www.sonnenberg-verein.de/