Data
- KKL Luzern Management AG
- AllBlues Konzert AG, Winterthur
- Festival Strings Lucerne
- Zürcher Kammerorchester
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Maya Classics
- Jazz Club Luzern und AllBlues Konzert AG Winterthur
- CONCORDIA
- Festival Strings Lucerne - Daniel Dodds