The basic contract is worth more than 拢5m, but the company is set to work with station owner London & Continental Railways to develop a series of further digital and sponsorship opportunities, including its Transvision model, which is already in place at 15 of Network Rail's 17 major stations.
St Pancras, which will also act as the terminal for High Speed 1, the UK's first high-speed railway, will reopen on 14 November this year after a 拢800m restoration and extension that will feature Europe's longest champagne bar, a daily farmers' market and more than 82,000sqft of retail units.
The win, which followed a traditional pitch process, means Titan will have expanded access to the UK rail audience, which currently stands at 86% according to data collated by Arkenford in 2006.
Jon Slatkin, chief executive of Titan in the UK, said the new St Pancras International station was "the ideal space to show what outdoor is really capable of in the 21st Century".
Titan now holds contracts for eight of London's terminals, including Victoria, Charing Cross, Waterloo, Euston and Paddington, accessing more than 800 million visitors a year.