Data
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- Festival Strings Lucerne
- Zürcher Kammerorchester
- GMkonzerte
- argovia philharmonic
- 21st Century Orchestra
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Festival Strings Lucerne - Daniel Dodds
- 21st Century Orchestra