Data
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Chor der Nationen Luzern
- Bach Ensemble Luzern
- GMkonzerte
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- Good News Productions AG Glattpark
- eco2friendly, c/o Otto Fischer AG
- Act Entertainment AG Basel
- Lucerne Hall