Die Medienanstalten (Gemeinsame Geschäftsstelle) serves as the joint management office coordinating the nationwide cooperation of the 14 independent State Media Authorities (Landesmedienanstalten) in Germany. These authorities are the central supervisory bodies responsible for regulating private broadcasting and telemedia, with a core mission to ensure media diversity and protect media freedom. The office supports the various commissions and bodies of the State Media Authorities in their tasks, including public relations and organizational coordination.