Data
- Act Entertainment AG Basel
- City Light Concerts
- Festival Strings Lucerne
- argovia philharmonic
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Jazz Club Luzern und AllBlues Konzert AG Winterthur
- CONCORDIA
- Festival Strings Lucerne - Daniel Dodds
- Good News Productions AG