Omnicom Group

One of the 'Big Four' global advertising holding companies, competing directly with WPP, Publicis Groupe, and IPG for the world's largest marketing budgets.

Omnicom Group is a leading 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 network of agencies across more than 100 countries. Its portfolio includes some of the most recognized names in the industry, including BBDO, DDB, TBWA, OMD, PHD, FleishmanHillard, Ketchum, and RAPP, among hundreds of others organized under its Omnicom Advertising Group, Omnicom Media Group, Omnicom Public Relations Group, and Omnicom Precision Marketing Group divisions. Omnicom serves a broad range of Fortune 500 and global blue-chip clients across virtually every industry vertical, providing integrated marketing solutions that span brand advertising, performance marketing, media planning and buying, public relations, healthcare communications, CRM, and data-driven precision marketing. The company has invested heavily in data and technology capabilities, including its Omni marketing orchestration platform, which unifies audience data, insights, and activation tools across its agency network to deliver more personalized and measurable marketing outcomes. As one of the 'Big Four' advertising holding companies alongside WPP, Publicis Groupe, and Interpublic Group (IPG), Omnicom holds a commanding position in the global advertising ecosystem. The company reported revenues exceeding $14 billion in recent fiscal years and is publicly traded on the New York Stock Exchange. In 2023, Omnicom announced a landmark agreement to acquire Interpublic Group, which would create the world's largest advertising holding company if completed, signaling continued consolidation at the top of the industry.