The move is the first major announcement by the firm since it was snapped up by Sky last week for almost £50m. Sky plans to use The Cloud, which has around 22,000 hotspots across the UK, to compete with the wi-fi operations of rival BT.
A spokesman from The Cloud said: “It is expected that more than 350,000 City workers will be able to take advantage of the free 15 minutes.
“Based on the success of the same offer in Glasgow, which experiences thousands of log-ins every day, The Cloud is expecting the initiative to have overwhelming appeal.”
Stuart Fraser, policy chairman at the City of London Corporation said: “When it was launched in 2007, City-wide wi-fi coverage significantly enhanced the Square Mile as a place to do business, providing substantial benefits not only for City workers but also for visitors and residents alike.
“Offering all users 15 minutes of free wi-fi coverage every day, The Cloud’s latest initiative will provide a greater range of connectivity options for all users within the City.”