Data
- Talks, Referate
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- GMkonzerte
- Pro Senectute Kanton Luzern
- 21st Century Orchestra
- GC Events Sagl
- Smallflower Events GmbH Elsau
- Good News Productions AG Glattpark
- eco2friendly, c/o Otto Fischer AG
- GMkonzerte / Odessa Classics
- Concert Hall