Founded in 1933 in the swiss Schaffhausen by Otto Weinmann, very close the border to Germany, over the years Weinmann became a very well reputated and one of the world leading lightweight bicyle parts builder, focused on brakes and later rims (in the 1960s the Weinmann colle rims became very famous). In the 1960s Weinmann delivered DiaCompe with brake parts and in the 1980s this cooperation lasted in the production of Weinmann's top modell Carrera. At the date of the 40th company anniversary they had more than 700 employees and two affiliated companies in Singen, Germany (Weinmann & Co. KG) and Schoten, Belgium. After the swiss location has been closed in 1991 business activities were administrated from the german subsidiary in Singen.
Sources: -Advisory information by Marlise Wunderli from Schaffhausen's town archive.
                -Advertising in the issues from 1952 of the german magazine "Radsport"
                -50 Jahre Weinmann - Die Vollbremser. Tour, 1983 , issue 12