The Interpublic Group of Companies, Inc.

About The Interpublic Group of Companies, Inc.

The Interpublic Group of Companies, Inc. is an advertising and marketing services holding company, described in one reference as among the world's largest advertising holding companies based on annual revenue. Its companies have offered consumer advertising, digital marketing, communications planning, media buying, public relations, and data management, and its investor materials cite approximately 51,000 employees. Its agency networks have included FCB, IPG Mediabrands, McCann Worldgroup, MullenLowe Group and Marketing Specialists, as well as several independent specialty agencies in the areas of public relations, sports marketing, talent representation and healthcare.

The group's operations were folded into Omnicom after the acquisition, which closed following receipt of all necessary regulatory approvals on November 26, 2025. The Interpublic website now states that Interpublic has been acquired by Omnicom. The company's New York address is 909 Third Avenue, New York, NY 10022. The sources reviewed do not describe a legal department or any legal practice areas, so no practice areas are listed for this organization.

Organization profile based on its official website and public sources (reviewed October 29, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with The Interpublic Group of Companies, Inc..

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