Data
- City Light Concerts
- Gadget abc Entertainment Group AG
- Ensemble Corund
- Pro Senectute Kanton Luzern
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- Euroconcerts Suisse Sarl
- Furler Productions
- SJSO
- Gadget abc Entertainment Group
- ENCORE! Entertainment AG
- ANDO Music Productions GmbH
- Pro Senectute Kanton Luzern