 By 1948, Neumann had moved back to his home in Berlin, which was finally relinquished by the military, and started up a new company called Georg Neumann GmbH.When the Berlin Wall was erected in 1961, Neumann's Berlin and Gefell workshops were separated.In 1972, pressured by the GDR, the company changed its name to VEB Mikrofontechnik Gefell.