Data
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Gadget abc Entertainment Group AG
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- CLAMUS Lucerne
- Rima Entertainment AG
- eco2friendly, c/o Otto Fischer AG
- Furler Productions
- Verein Luzerner Orgelfreunde
- AllBlues Konzert AG Winterthur