Data
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Feldmusik Luzern
- Lucerne Festival
- argovia philharmonic
- GC Events Sagl
- Migros-Kulturprozent-Classics
- Alegria Konzert GmbH
- Rima Entertainment AG
- Lorenz Hauser Management
- GMkonzerte / Odessa Classics
- Act Entertainment AG Basel