Data
- KKL Luzern Management AG
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- Bach Ensemble Luzern
- GMkonzerte
- GC Events Sagl
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- Gadget abc Entertainment Group
- Konzertbüro Augsburg GmbH
- Festival Strings Lucerne - Daniel Dodds