Rainer Langer, toolmaker and mechanical engineer, sees the need to develop universal design in the social economy and social services. Participatory action is the basis for this. Since 2011, he has been working on the topic areas of Universal Design and is a member of the Universal Design Forum e.V. based in Weimar. In product development and workplace design he takes Universal Design principles and those of bionics into account. He organises exhibitions, workshops and trade days with the topics of Universal Design in Herzogsägmühle.