Data
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- City Light Concerts
- Gadget abc Entertainment Group AG
- GC Events Sagl
- KKL Luzern Management AG und Luzerner Sinfonieorchester
- Good News Productions AG Glattpark
- Gadget abc Entertainment Group AG
- Act Entertainment AG Basel
- Migros-Kulturprozent-Classics