Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Ensemble Corund
- Stargarage AG
- GC Events Sagl
- Migros-Kulturprozent-Classics
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- EJV Abteilung Jodelgesang
- Euroconcerts Suisse Sarl
- Gadget abc Entertainment Group
- CH Regionalmedien AG
- Act Entertainment AG Basel