Data
- Classical music
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- Chor der Nationen Luzern
- GC Events Sagl
- Migros-Kulturprozent-Classics
- Good News Productions AG Glattpark
- eco2friendly, c/o Otto Fischer AG
- Gadget abc Entertainment Group AG
- Migros-Kulturprozent-Classics