Data
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Brassband Bürgermusik Luzern
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- Smallflower Events GmbH Elsau
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- Euroconcerts Suisse Sarl
- Act Entertainment AG Basel