Celtra scoops $15m investment with backers including Unilever and WPP

Mobile advertising firm Celtra has today (June 21) announced a $15m funding round with WPP confirming its participation in taking a minority stake alongside CPG giant Unilever. 
US-based Celtra has established itself as one of the foremost companies in the mobile advertising space, having developed a creative management platform for distributing content across multiple screens since it was founded in 2006. 
Celtra makes its AdCreator platform available to both brands and agencies,