UM (Universal McCann)
New York, New York, United States · Founded 1999
10000+ employees
Major global media-buying network; one of the surviving IPG Mediabrands media agencies post-Omnicom-IPG merger. Founded 1999 (current form; roots to 1902). Now sits directly under Omnicom Media (led by Florian Adamski) alongside OMD, PHD, Initiative, Hearts & Science, and Mediahub.
Where they sit
Stack tier: Ecosystem Services (A)
Attribution & AnalyticsMarketing AgencyProgrammatic Platform
One of the world's largest media agency networks, now operating under Omnicom Media Group alongside OMD, PHD, Initiative, Hearts & Science, and Mediahub following the 2025 Omnicom-IPG merger.
Ownership
Parent: Omnicom Media Group