Data
- Obrasso Classic Events GmbH
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Feldmusik Luzern
- Ensemble Corund
- Stargarage AG
- 21st Century Orchestra
- GC Events Sagl
- Good News Productions AG Glattpark
- Euroconcerts Suisse Sarl
- Lorenz Hauser Management
- 21st Century Orchestra