
Media services now account for nearly a third of
net revenues for the major agency holding companies, up from just 20% ten years earlier, according to an analysis published early this morning by Brian Wieser's Madison and Wall
newsletter.
"[WPP, Publicis, Omnicom, Interpublic and Dentsu’s International business] had $54 billion in net revenue last year, of which $17 billion, or more than 30% of net revenue,
was attributable to the media agencies within these holding companies," Wieser writes, "meaning GroupM, Publicis Media, OMG, Mediabrands and the media business within Dentsu International."
Citing comparable 2012 estimates that media services accounted for 20% of the holding companies' net revenue, Wieser estimates "media agencies were responsible for nearly two-thirds of large agency
group growth over the past decade."