Data
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- City Light Concerts
- Festival Strings Lucerne
- 21st Century Orchestra
- GC Events Sagl
- Migros-Kulturprozent-Classics
- Smallflower Events GmbH Elsau
- Good News Productions AG Glattpark
- Konzertbüro Augsburg GmbH
- Festival Strings Lucerne - Daniel Dodds