26 March 1946 RIELE was founded by Robert Riele and his nephew, Otto Riele, as a wholesale business for hospital and laboratory equipment in East Berlin
31 December 1949 Final move of the corporate centre to Hermsdorf in West Berlin
1952 Beginning of the production of optical, mechanical devices, e.g. Photometers for clinical-chemical analyses
1966 Introduction of MK 2, MK 3, in Germany very popular and successful