The OpenGLAM Working Group of the opendata.ch association promotes and facilitates the adoption of the OpenGLAM Principles in Switzerland. Once a year, it brings together data providers, software developers, digital humanists, artists, Wikimedians/Wikipedians, and other interested people in order to experiment how cultural data and content can be used for research purposes, for web and mobile apps, in the context of Wikipedia, for artistic re-mixes, or for other forms of re-use. In general, data providers manage the description of their data on opendata.swiss themselves under their own organizational account. As an exception in some cases, the OpenGLAM CH Working Group takes care of this. Save for a few noted exceptions, only the data descriptions, but not the data itself are provided by the OpenGLAM Working Group.