Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- domino Event SARL St. Gallen www.dominoevent.ch
- argovia philharmonic
- GC Events Sagl
- Migros-Kulturprozent-Classics
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Maya Classics
- ENCORE! Entertainment AG
- ENCORE - Entertainment AG