Omnicom Recognized As a Leader in Two 2026 Gartner Reports for Global Digital Marketing Agencies

<p>NEW YORK, Sept. 28, 2026 /PRNewswire/ -- Omnicom (NYSE: OMC), the world's leading marketing and sales company, today announced it has been ranked first across all evaluated categories in the 2026 Gartner® Critical Capabilities for Global Digital Marketing Agencies report. Omnicom was also...</p>