Omnicom Named World's Most Effective Holding Group in 2024 Effie Index®
1. Omnicom ranked Most Effective Holding Group in 2024 Effie Index. 2. BBDO Worldwide ranked third, DDB Worldwide fourth for agency effectiveness. 3. Omnicom leads in Latin America, with top agencies recognized. 4. Repeat recognition highlights Omnicom's commitment to marketing effectiveness. 5. Recent industry accolades reinforce Omnicom's leadership position.