business Shaking up Advertising Power Structure: 4 Potential Consequences of the Omnicom-IPG Merger , and Administrator 2025 May 1
business Unexpected Allies: Guiding IPG and Omnicom Through Ongoing Competitive Bids , and Administrator 2025 May 1
business Omnicom acknowledges acquisition by IPG and announces revised corporate hierarchy , and Administrator 2025 April 29
