It's useful to the classical music CD and DVD collector to have a general idea of the music market. The major music producers and distributors along with their main classical music labels are listed below. Four major companies dominate the market with different labels although there are some important smaller distributors.
Sony/BMG Sony BMG Deutsche Harmonia Mundi Eurodisc ECM RCA Victor
EMI Classics EMI Angel Studio Pathe Marconi Reflexe Virgin
Universal (previously Polygram/PGD) Deutsche Gramophone Philips Decca/London Archiv L'Oiseau-Lyre Argo Mercury Gimell
Warner/WEA Warner Nonesuch Erato Teldec Finnadar
Other major distributors are Allegro Brilliant BIS Chandos CPO Harmonia Mundi Hyperion Koch International Naxos Qualiton