Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Feldmusik Luzern
- Lucerne Festival
- domino Event SARL St. Gallen www.dominoevent.ch
- argovia philharmonic
- GC Events Sagl
- Migros-Kulturprozent-Classics
- Alegria Konzert GmbH
- Rima Entertainment AG
- Gadget abc Entertainment Group
- Festival Strings Lucerne - Daniel Dodds