Data
- Radio Pilatus AG
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- City Light Concerts
- Chor der Nationen Luzern
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Smallflower Events GmbH Elsau
- Good News Productions AG Glattpark
- Maya Classics
- Rima Entertainment AG
- DaCapo Musikmarketing GmbH