Data
- Radio Pilatus AG
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- City Light Concerts
- Chor der Nationen Luzern
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Smallflower Events GmbH Elsau
- Maya Classics
- ArteCultura
- Lucerne Chamber Circle