WPP plc operates as one of the world's largest advertising and marketing services groups, serving clients in over 110 countries. The company organizes its business into three main segments: Global Integrated Agencies, Public Relations, and Specialist Agencies. Its portfolio includes renowned agency networks such as Ogilvy, VML, GroupM, and Burson, which deliver end-to-end marketing solutions. WPP's services span creative campaign development, media investment management, data analytics, and enterprise AI transformation. The firm competes globally with other major holding companies like Publicis and Omnicom, leveraging its scale and integrated capabilities to secure large corporate accounts.