Data
- others
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Musikschule Stadt Luzern
- Lucerne Festival
- Pro Senectute Kanton Luzern
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- Good News Productions AG Glattpark
- Furler Productions
- Musikgesellschaft Perlen-Buchrain
- GMkonzerte / Odessa Classics