Data
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- Festival Strings Lucerne
- Lucerne Festival
- GC Events Sagl
- Good News Productions AG Glattpark
- WMC Media GmbH
- MyNina Spettacoli sagl
- ENCORE! Entertainment AG
- Festival Strings Lucerne - Daniel Dodds
- Act Entertainment AG Basel