Data
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- argovia philharmonic
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Secondhand Orchestra
- Festival Strings Lucerne - Daniel Dodds