Data
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- GMkonzerte
- 21st Century Orchestra
- GC Events Sagl
- Smallflower Events GmbH Elsau
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- EJV Abteilung Jodelgesang
- eco2friendly, c/o Otto Fischer AG
- World Band Festival Luzern
- 21st Century Orchestra
- Concert Hall