M
Mediacom
RebrandedLondon, England, United Kingdom · Founded 1986
10001+ employees
Sourced & current · updated Jun 12, 2026Website
Mediacom is a global media agency network and subsidiary of GroupM, specializing in media planning, buying, and performance optimization across all channels.
Where they sit
Stack tier: Core Platforms (S)
Attribution & AnalyticsMarketing AgencyPerformance Marketing
Was one of the top 3 global media agency networks by billings before merging into EssenceMediacom in 2023
Ownership
Parent: GroupM