The Philharmonische Orchester was founded in Hagen in 1907 as the first municipal orchestra in the picturesque eastern area of the Ruhr Metropolis know as Westphalia. The venue built in 1911 has been recognised as one of the leading stages in the German-speaking world.

The orchestra presents a versatile collection of concerts throughout the season, playing in the Theater Hagen. The theatre also presents a variety of operas from several origins.