Data
- KKL Luzern Management AG
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Zürcher Kammerorchester
- Pro Senectute Kanton Luzern
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Feldmusik Hochdorf
- Culture Communication GmbH
- Rima Entertainment AG
- Jazz Club Luzern und AllBlues Konzert AG Winterthur
- Act Entertainment AG Basel