Data
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Ensemble Corund
- GC Events Sagl
- Good News Productions AG Glattpark
- EJV Abteilung Jodelgesang
- Rima Entertainment AG
- eco2friendly, c/o Otto Fischer AG
- Furler Productions
- MyNina Spettacoli sagl
- GMkonzerte / Odessa Classics
- AllBlues Konzert AG Winterthur