Data
- Act Entertainment AG Basel
- Ensemble Corund
- Lucerne Festival
- Pro Senectute Kanton Luzern
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- Good News Productions AG Glattpark
- Euroconcerts Suisse Sarl
- eco2friendly, c/o Otto Fischer AG
- Act Entertainment AG Basel
- Klavier-Fest | LUCERNE FESTIVAL