Data
- Act Entertainment AG Basel
- Feldmusik Luzern
- Ensemble Corund
- 21st Century Orchestra
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- EJV Abteilung Jodelgesang
- eco2friendly, c/o Otto Fischer AG
- 21st Century Orchestra
- Act Entertainment AG Basel