Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Pro Senectute Kanton Luzern
- argovia philharmonic
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Euroconcerts Suisse Sarl
- Secondhand Orchestra
- Festival Strings Lucerne - Daniel Dodds
- Act Entertainment AG Basel