Data
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- Festival Strings Lucerne
- GMkonzerte
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- Rima Entertainment AG
- MyNina Spettacoli sagl
- Festival Strings Lucerne - Daniel Dodds
- domino Event SARL