Data
- Obrasso Classic Events GmbH
- AllBlues Konzert AG, Winterthur
- Festival Strings Lucerne
- Ensemble Corund
- GC Events Sagl
- Good News Productions AG Glattpark
- EJV Abteilung Jodelgesang
- eco2friendly, c/o Otto Fischer AG
- MyNina Spettacoli sagl
- GMkonzerte / Odessa Classics
- Festival Strings Lucerne - Daniel Dodds