The Interpublic Group of Companies, Inc. (IPG) is one of the "big four" global advertising holding companies (the others being Omnicom, WPP and Publicis). It is headquartered in New York City and is the parent company of advertising and marketing services agencies around the world.The company consists of three major networks: McCann Worldgroup, Lowe and Partners, and FCB. Its media agencies are bundled under the IPG Mediabrands entity.