Wilhelm Frank was born in Dainbach, a small town in Baden-Württemberg, Germany. He, who was the only one in his family allowed to study, made a groundbreaking invention in his workshop as a young man: The first tilt-and-turn hardware for windows.
In 1935, he then founded a company - which developed into today's Roto Group. Rooted in the region, but with a head full of ideas, the tinkerer Wilhelm Frank realised early on how important it is to value the regional and yet be cosmopolitan. His interest in the world led to the global success of the company. In the family business, which has grown stably and over the long term, the family members still stand firmly behind the values of regionality and cosmopolitanism today.