Omnicom Group Inc. announced the appointment of Andrea Lennon to the new role of Chief Client Officer, effective immediately. Lennon will be responsible for leading Omnicom's multi-disciplinary solutions for enterprise clients, including the company's Global Client Leaders (GCL) Group that manages and orchestrates client solutions across Omnicom's leading agencies and practice areas. As Chief Client Officer, Lennon will focus on transformative marketing solutions and capabilities that drive business results for global enterprise clients. In partnership with her GCL team, she will accelerate solutions that draw on the Group's best talent while expertly integrating Omnicom's leading capabilities in data, creative, media, communications and technology. Lennon has built a strong track record in marketing transformation at Critical Mass, Omnicom's digital experience design agency, where she spent seven years working in Asia, Europe and the US prior to being named President two years ago.

She held previous positions at R/GA and WPP, leading omnichannel brand communications for top global brands in the health and financial space.