Data
- Act Entertainment AG Basel
- Gadget abc Entertainment Group AG
- Verein Luzerner Blues Session
- Ensemble Corund
- GMkonzerte
- Stargarage AG
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Furler Productions
- Act Entertainment AG Basel