Andrea Lennon

Andrea Lennon serves as Client Experience Officer at Omnicom Media Group, a role established in 2026 as part of the enterprise client-service architecture under CEO Florian Adamski. In this capacity, she is responsible for overseeing and elevating the client experience across Omnicom Media's portfolio of agency brands, which includes OMD, PHD, and Hearts & Science. Her position reflects Omnicom's strategic investment in centralizing and standardizing client service excellence at scale across one of the largest media holding company networks in the world. Lennon has built her career within the Omnicom ecosystem, developing deep expertise in client relationship management, media strategy, and agency operations. Her elevation to a C-suite client experience role signals the growing importance media holding companies are placing on retention, satisfaction, and integrated service delivery as the competitive landscape for large advertiser relationships intensifies. She operates at the intersection of agency leadership, client strategy, and operational transformation. As a senior operator within Omnicom Media Group, Lennon's work is particularly relevant in an era where advertisers are demanding greater transparency, accountability, and cohesion from their media agency partners. Her role positions her as a key figure in how Omnicom Media differentiates its client offering amid ongoing industry consolidation and the increasing complexity of the modern media and AdTech stack.

Last updated Jul 10, 2026 by ATDb automated enrichment · Connections updated Jul 13, 2026