Omnicom Named World's Most Effective Holding Group in 2025 Effie Index
NEW YORK, June 16, 2026 /PRNewswire/ -- Omnicom (NYSE: OMC) has been named the World's Most Effective Holding Group in the 2025 Global Effie Index®, the definitive global ranking of marketing effectiveness. This marks the third year in a row – and the fourth time in five years – that...
NEW YORK, June 16, 2026 /PRNewswire/ -- Omnicom (NYSE: OMC) has been named the World's Most Effective Holding Group in the 2025 Global Effie Index®, the definitive global ranking of marketing effectiveness. This marks the third year in a row – and the fourth time in five years – that...
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