The first OEB was hosted at the Berlin Congress Center (bcc); it then moved to the Hotel InterContinental Berlin in 1996 where it has taken place for subsequent years, apart from 2020, when it was organised as a virtual event.
The inaugural OEB event was initially hosted at the Berlin Congress Center (bcc); subsequently, it moved to the Hotel InterContinental Berlin in 1996 and has continued to be held there annually, with a notable exception being 2020, when it transitioned to a digital conference.