Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Chor der Nationen Luzern
- Bach Ensemble Luzern
- Lucerne Festival
- domino Event SARL St. Gallen www.dominoevent.ch
- Good News Productions AG Glattpark
- Furler Productions
- MyNina Spettacoli sagl
- Konzertbüro Augsburg GmbH
- Festival Strings Lucerne - Daniel Dodds