Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Zürcher Kammerorchester
- Lucerne Festival
- domino Event SARL St. Gallen www.dominoevent.ch
- 21st Century Orchestra
- GC Events Sagl
- Good News Productions AG Glattpark
- EJV Abteilung Jodelgesang
- Lorenz Hauser Management
- Secondhand Orchestra
- Summer Festival | LUCERNE FESTIVAL