Data
- KKL Luzern Management AG
- Act Entertainment AG Basel
- Jazz Club Luzern
- Festival Strings Lucerne
- Feldmusik Luzern
- Zürcher Kammerorchester
- argovia philharmonic
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- ENCORE! Entertainment AG
- Act Entertainment AG Basel