Data
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Ensemble Corund
- Lucerne Festival
- Pro Senectute Kanton Luzern
- 21st Century Orchestra
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- CH Regionalmedien AG
- Act Entertainment AG Basel