Data
- Act Entertainment AG Basel
- City Light Concerts
- Gadget abc Entertainment Group AG
- Zürcher Kammerorchester
- Lucerne Festival
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- CLAMUS Lucerne
- Smallflower Events GmbH Elsau
- Maya Classics
- CH Regionalmedien AG
- GMkonzerte / Odessa Classics
- domino Event SARL