Helical plc has exchanged contracts on a 19,628 sq ft office letting at The Bower in Old Street, further consolidating the campus’s position within London’s technology cluster.
The space has been taken by incident.io – a global AI platform focused on incident response and operational coordination. The company will occupy levels five and six of The Tower building from June 2026.
The transaction accounts for roughly one third of the available space at the mixed-use campus and lifts overall occupancy to 87%. The deal was agreed in line with current estimated rental values. JLL and Compton acted for Helical, while Making Moves represented incident.io.
Discussions are also ongoing regarding the remaining vacant space, alongside negotiations with existing tenants over potential lease re-gears.
Old Street has evolved into a core location for technology and innovation businesses, combining transport connectivity with proximity to venture-backed growth companies and access to specialist talent. The Bower itself hosts a range of established and scaling technology occupiers.
“incident.io join our roster of leading technology occupiers at The Bower, where we have seen a considerable uptick in interest for the remaining space, particularly from the tech community deploying AI in their products.
“Such companies recognise the attraction of well-connected campuses which allow clustering to leverage agglomeration effects, future growth potential and a vibrant creative culture.”
Matthew Bonning-Snook, Chief Executive Officer, Helical
For London’s office market, the letting provides further evidence that AI-driven software businesses continue to take physical space within established urban clusters, even as flexible working patterns persist.
In innovation districts such as Old Street, proximity, brand environment and access to peer networks remain central to occupier decision-making.



