Data
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- City Light Concerts
- Festival Strings Lucerne
- Musikschule Stadt Luzern
- GMkonzerte
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- Good News Productions AG Glattpark
- MyNina Spettacoli sagl
- Secondhand Orchestra
- Festival Strings Lucerne - Daniel Dodds