Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Blasorchester Stadtmusik Luzern
- argovia philharmonic
- 21st Century Orchestra
- GC Events Sagl
- Migros-Kulturprozent-Classics
- swiss classics gmbh / Lucerne Chamber Circle
- eco2friendly, c/o Otto Fischer AG
- MyNina Spettacoli sagl
- Act Entertainment AG Basel