Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Konzertchor Klangwerk Luzern
- Ensemble Corund
- GC Events Sagl
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- Maya Classics
- eco2friendly, c/o Otto Fischer AG
- CH Regionalmedien AG
- Festival Strings Lucerne - Daniel Dodds
- Act Entertainment AG Basel