Pole position: marketing agency WCRS collects the award for Interactive technology

A collaborative campaign by Topshop and Twitter has seen the two companies scoop joint overall winners, along with charity Women's Aid, at this year's Art of Outdoor digital out-of-home competition, run by Ocean Outdoor.

Women's Aid claimed first place in the 'Interactive' category for a campaign that raised awareness of domestic abuse by using facial recognition technology; meanwhile, Topshop and Twitter were winners in the 'Creative Techniques' category for a campaign that displayed catwalk trends live on Ocean's The Grid network. Other big winners on the night included British Airways, which won two awards.

"Our winners are striking in the power of their visual ideas combined with innovative use of technology," states Tim Bleakley, chief executive of Ocean. "They deserve to be recognised for their immediacy and relevance to their target audiences."