Interpublic Group of Cos., Inc. engages in the provision of advertising and marketing services. The firm specializes in consumer advertising, digital marketing, communications planning and media buying, public relations and specialized communications disciplines. Read More It operates through the following segments: Integrated Agency Network (IAN) and Constituency Management Group (CMG). The IAN segment includes advertising and media services, as well as an array of global communications and marketing services. The CMG segment offers events and public relations services as well as sports and entertainment marketing, corporate and brand identity and strategic marketing consulting. The company was founded on September 18, 1930 and is headquartered in New York, NY. The listed name for IPG is The Interpublic Group of Companies, Inc.