The agreement was made following a series of events by The Halo Group and St Mary's Axe's in-house team. These included a private wedding and a themed Valentines event.
The Halo Group joins Partridge Events on the roster, which includes production, dressing and entertainment duties.
The 39th and 40th floor of St Mary's Axe is available for private and corporate hire, and can seat up to 80 with room to accommodate 240 people standing.
To leave a comment register and let us know your thoughts.