Omnicom Group

One of the world's top three advertising holding companies by revenue, competing globally with WPP, Publicis Groupe, and IPG

Omnicom Group is a premier global advertising and marketing communications holding company headquartered in New York City. Founded in 1986 through the merger of BBDO Worldwide, DDB Needham, and TBWA, Omnicom operates a vast portfolio of agency brands organized across four disciplines: advertising, customer relationship management (CRM), public relations, and specialty communications. Its flagship agency networks include BBDO, DDB, TBWA, OMD, PHD, and FleishmanHillard, among many others, serving thousands of clients across more than 100 countries. Omnicom's market position is defined by its scale, creative excellence, and integrated service offering. The company competes directly with WPP, Publicis Groupe, and Interpublic Group (IPG) for the world's largest advertising budgets. Omnicom has consistently ranked among the top two or three holding companies globally by revenue, with annual revenues exceeding $14 billion. Its Omnicom Media Group (OMG) division is one of the largest media buying and planning entities in the world, while its precision marketing and data capabilities have been significantly expanded through investments in technology and data partnerships. In the AdTech ecosystem, Omnicom is significant as both a major buyer of digital advertising inventory and a developer of proprietary data and technology solutions. Its Omni marketing orchestration system serves as a data and insights platform enabling audience targeting, personalization, and campaign measurement across channels. Omnicom has also announced a planned merger with Interpublic Group (IPG), which, if completed, would create the world's largest advertising holding company, reshaping the competitive landscape of the global marketing industry.