Data
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- City Light Concerts
- Festival Strings Lucerne
- Stargarage AG
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- eco2friendly, c/o Otto Fischer AG
- Furler Productions
- GMkonzerte / Odessa Classics
- Act Entertainment AG Basel