5 companies integrate with WPP OpenX, tracked by ATDb — grouped by category.
View WPP OpenX’s full profile 
GroupMGroupM, now rebranded as WPP Media, was a U.S.-based media business owned by the multinational…
OgilvyOgilvy is an American advertising, marketing, and public relations agency that operates within the…
VMLY&RVMLY&R, now operating as VML, was an American marketing and communications agency — born from the…
Wunderman ThompsonA global creative and technology agency that combines data, commerce, and experience to deliver…
Hogarth WorldwideHogarth Worldwide is WPP's content production powerhouse — 10,000+ staff. Acquired by WPP 2008.