Rheingold institute

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The Rheingold institute for qualitative market and media research was founded in 1987 in Cologne, Germany, by Stephan Gruenewald and Jens Loenneker. The Rheingold method is based on the psychological theory of morphology, developed in the 1950's by Dr. Wilhelm Salber, a former professor and institute director at the University of Cologne.

Rheingold currently has six managing partners and 60 employees.

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