Data
- Obrasso Classic Events GmbH
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Jazz Club Luzern
- Festival Strings Lucerne
- argovia philharmonic
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Verein Luzerner Orgelfreunde
- Act Entertainment AG Basel