Data
- Obrasso Classic Events GmbH
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Brassband Bürgermusik Luzern
- GC Events Sagl
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- Euroconcerts Suisse Sarl
- Maya Classics
- eco2friendly, c/o Otto Fischer AG
- Festival Strings Lucerne - Daniel Dodds