Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- Ensemble Corund
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- EJV Abteilung Jodelgesang
- cPAMPLONAcm
- Gadget abc Entertainment Group
- Lucerne Chamber Circle