Data
- Obrasso Classic Events GmbH
- 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
- ArteCultura
- Secondhand Orchestra
- AllBlues Konzert AG Winterthur