Leo

Publicis Groupe's largest creative network and one of the world's biggest global creative agency constellations, competing at the top tier of the holding company agency landscape.

Leo is a global creative network launched in January 2025 by Publicis Groupe, created through the merger of two of its most storied agency brands — Leo Burnett and Publicis Worldwide. With approximately 130 agencies, 15,000 employees, and a presence in 90 countries, Leo stands as Publicis Groupe's largest creative network and one of the biggest creative agency constellations in the world. The network is designed to deliver integrated creative solutions at global scale, combining the legacy strengths of Leo Burnett's iconic brand-building heritage with Publicis Worldwide's broad international footprint. Leo operates as a full-service creative agency network, offering brand strategy, creative development, content production, and integrated campaign execution for some of the world's largest advertisers. The merger was positioned as a response to client demand for simpler, more unified agency relationships and greater operational efficiency, enabling Leo to offer seamless creative services across markets without the complexity of managing multiple agency brands. Within the AdTech and advertising ecosystem, Leo competes directly with other major global creative networks such as WPP's Ogilvy and VMLY&R, Omnicom's BBDO and DDB, and IPG's McCann Worldgroup. As part of Publicis Groupe, Leo benefits from integration with Publicis's broader technology and data capabilities, including the Epsilon data platform and Publicis Sapient's digital transformation services, giving it a distinctive edge in combining creativity with data-driven marketing intelligence.