The event is billed as an opportunity for clients to meet the ACC team and be updated on its future direction.
ACC Liverpool, which comprises the BT Convention Centre and Echo Arena, is also inviting partner hotels and venues including the Liverpool Convention Bureau to the London event.
The showcase will also be attended by Virgin Trains, which is set to launch a partnership between the two organisations related to delegate travel.
BT Convention Centre general manager Jacquie Rogers said: "Our Showcase has become recognised in the industry not just for the networking opportunities but for its ability to bring the spirit of Liverpool into the capital for one day only. Last year we went ‘pop-up’ in the BT Tower and this year’s venue will be just as uniquel."