Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Vokalensemble Luzern
- Lucerne Festival
- Zentralschweizer Jugendsinfonieorchester ZJSO
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Maya Classics
- Act Entertainment AG Basel