Data
- Obrasso Classic Events GmbH
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Festival Strings Lucerne
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- GMkonzerte / Odessa Classics
- World Band Festival Luzern
- Act Entertainment AG Basel