 In 1801 the store was taken over by Georg Reimer.In 1919, Walter de Gruyter (1862–1923) merged it with 4 other publishing houses into the company that became "Verlag Walter de Gruyter & Co" in 1923, and "Walter de Gruyter GmbH" in 2012.De Gruyter maintains offices around the globe, in Berlin, Basel, Boston, Munich, Beijing, Warsaw, and Vienna.