Data
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Festival Strings Lucerne
- GC Events Sagl
- Migros-Kulturprozent-Classics
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Euroconcerts Suisse Sarl
- Rima Entertainment AG
- Gadget abc Entertainment Group
- Rima Entertainment