Data
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Lucerne Festival
- GC Events Sagl
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- Maya Classics
- Rima Entertainment AG
- eco2friendly, c/o Otto Fischer AG
- Gadget abc Entertainment Group
- Festival Strings Lucerne - Daniel Dodds
- Concert Hall