Штифтунг Варентест
He was appointed Head of the Technology Department of Stiftung Warentest shortly after it was established in 1964 and as such, he played a major role in its development to a successful and internationally recognised institution. In 1967 he succeeded Olaf Triebenstein as the Managing Director of Stiftung Warentest and was then appointed Executive Director in 1972. During this time, he developed the method of comparative product testing. Roland Hüttenrauch retired in 1994 and was succeeded by Werner Brinkmann. He remained a member of Stiftung Warentest's Supervisory Board till 1999.