OMD, part of Omnicom Media Group, has appointed Ellen Griffin as President, Global Chief Operating Officer. The new role has been established to support the development and implementation of tailored operating models for clients across the agency’s international network.
Griffin was previously Global Chief Client Solutions Officer at OMD. In her new role, she will work across Omnicom Media Group and the wider Omnicom network to support clients with business transformation initiatives and marketing-led growth strategies.
“Earlier this year, OMD made a bold new promise: We create what’s next,” said OMD Worldwide CEO George Manas. “With this new role, we’re delivering on that promise by building solutions that tap into Omnicom’s full advantage across media, data, CRM, commerce, content, and creativity. Ellen brings the vision and operational leadership to help our clients win in an increasingly complex and challenging business environment."
Griffin joined OMD in 2018 as Global Innovation Director before becoming Global Chief Client Solutions Officer. In that position, she led the development of client-focused solutions using Omni, Omnicom’s marketing intelligence platform, contributing to over $2.5 billion in new business.
Commenting on her new role, Griffin said, “In a time of accelerated disruption, even the most seasoned marketers are challenged to keep pace. This role is about accelerating and scaling transformation—ensuring OMD delivers the expertise, tools, and operating models that give our clients a competitive edge today and resilience for tomorrow.”
Griffin will report directly to George Manas, with the appointment effective immediately.
The announcement follows recent recognition for OMD, including being named the top global media agency in the COMvergence Global & Regional Billings report, with $23.6 billion in global billings. The agency was also named Media Network of the Year at the 2025 Cannes Lions.
