Data
- Luzerner Sinfonieorchester
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Lucerne Festival
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- eco2friendly, c/o Otto Fischer AG
- Jazz Club Luzern und AllBlues Konzert AG Winterthur
- Jazz Classics
- Act Entertainment AG Basel