Data
- Act Entertainment AG Basel
- City Light Concerts
- Festival Strings Lucerne
- Pro Senectute Kanton Luzern
- 21st Century Orchestra
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Smallflower Events GmbH Elsau
- Good News Productions AG Glattpark
- ENCORE! Entertainment AG
- Pro Senectute Kanton Luzern