G
GroupM
RebrandedNew York, New York, United States · Founded 2003
10001+ employees
Sourced & current · updated Jun 1, 20260 of 5 facts verified
GroupM is the world's largest media investment company, managing over $60 billion in annual media spend across multiple agency brands including Mindshare, Wavemaker, EssenceMediacom, and mSix&Partners.
Where they sit
Stack tier: Core Platforms (S)
Attribution & AnalyticsMarketing AgencyProgrammatic Platform
Formerly the world's largest media investment group by spend under management; now operating as WPP Media, retaining its position as the dominant global media buying and planning operation within WPP.
Ownership
Parent: WPP