Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Chor der Nationen Luzern
- Stargarage AG
- argovia philharmonic
- Blasorchester FM Neuenkirch
- GC Events Sagl
- Good News Productions AG Glattpark
- Rima Entertainment AG
- eco2friendly, c/o Otto Fischer AG
- GMkonzerte / Odessa Classics
- GMkonzerte / Odessa Classics