Omnicom Media Group’s (OMG) flagship agency OMD has appointed Ellen Griffin as President and Global Chief Operating Officer, a newly created role aimed at accelerating the development and deployment of customized, future-ready operating models across OMD’s worldwide client portfolio.
Griffin, who most recently served as OMD’s Global Chief Client Solutions Officer, brings extensive experience in shaping the agency’s strategy, talent, and service models. She will leverage the collective capabilities of OMG and the wider Omnicom network—including media, data, CRM, commerce, content, and creativity—to help clients navigate business transformation and achieve marketing-led growth.
Since joining OMD in 2018 as Global Innovation Director, Griffin has been at the forefront of key strategic initiatives. As Global Chief Client Solutions Officer, she played a pivotal role in designing bespoke client solutions powered by Omni, Omnicom’s global marketing intelligence platform, contributing to over $2.5 billion in net new business wins. Her work has helped evolve OMD’s operational model and strengthen its global capabilities.
OMD Worldwide CEO George Manas commented on the appointment: “Earlier this year, OMD made a bold new promise: We create what’s next. With this new role, we are 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 succeed in an increasingly complex business environment.”
Griffin added, “In a time of accelerated disruption, even the most experienced marketers face challenges. This role is about accelerating and scaling transformation, ensuring OMD delivers the tools, expertise, and operating models that give our clients a competitive edge today and resilience for tomorrow.”
The appointment is effective immediately, and Griffin will report directly to Manas. Under her leadership, OMD will continue to expand its global capabilities and strengthen support for clients in key markets, including North America, EMEA, Asia-Pacific, and South Asia.
This announcement follows a string of global recognitions for OMD, including being named #1 media agency worldwide in the COMvergence Global & Regional Billings report, with $23.6 billion in global billings, and earning Media Network of the Year at the 2025 Cannes Lions—marking its third win in four years and second consecutive title.
