| Name | : Helsingin rock and roll oy |
| Business Number | : 0848954-1 |
| Category | : Limited Company |
| Primary language | : Finnish |
| Place of taxation | : Helsinki  | Date of registration | : 26.06.1991 |
| Activity | : Restaurants |
| Alias | : Helsingin Rock And Roll Oy, Tavastia Klubi, Backstage, Semifinal |