Ergebnis: GIZ Gründer
Gruner + Jahr is a publishing house headquartered in Hamburg, Germany. The company was founded in 1965 by Richard Gruner , John Jahr , and Gerd Bucerius. From 1969 to 1973, Bertelsmann acquired a majority share in the company and gradually increased it over time. Since 2014, the company has been a fully owned subsidiary of the Gütersloh-based media and services group.