Data
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Konzertchor Klangwerk Luzern
- GC Events Sagl
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- Maya Classics
- Furler Productions
- Lorenz Hauser Management
- Festival Strings Lucerne - Daniel Dodds
- Act Entertainment AG Basel