Data
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- City Light Concerts
- Brassband Bürgermusik Luzern
- Chor der Nationen Luzern
- Radio Pilatus AG *
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Maya Classics
- eco2friendly, c/o Otto Fischer AG
- Act Entertainment AG Basel