Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Brassband Bürgermusik Luzern
- GMkonzerte
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Feldmusik Hochdorf
- Culture Communication GmbH
- Lucerne Chamber Circle