Data
- Talks, Referate
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- Ensemble Corund
- Pro Senectute Kanton Luzern
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Smallflower Events GmbH Elsau
- Good News Productions AG Glattpark
- Rima Entertainment AG
- GMkonzerte / Odessa Classics