Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- argovia philharmonic
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Rima Entertainment AG
- Furler Productions
- Verein Luzerner Orgelfreunde
- Verein Luzerner Orgelfreunde