Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- Chor der Nationen Luzern
- 21st Century Orchestra
- GC Events Sagl
- Migros-Kulturprozent-Classics
- swiss classics gmbh / Lucerne Chamber Circle
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- Rima Entertainment AG
- Act Entertainment AG Basel