Data
- Act Entertainment AG Basel
- City Light Concerts
- Festival Strings Lucerne
- Brassband Bürgermusik Luzern
- Zürcher Kammerorchester
- GC Events Sagl
- Migros-Kulturprozent-Classics
- Good News Productions AG Glattpark
- eco2friendly, c/o Otto Fischer AG
- ENCORE! Entertainment AG
- Secondhand Orchestra
- Migros-Kulturprozent-Classics