- Campaign, Friday, April 29, 2016 6:21 AM
Ogilvy & Mather has been named as the most effective ad network in the world by the Effie Index, while its owner, WPP, was named the most effective holding company for the fifth
year in a row. The Coca-Cola Company retained top spot as the highest-ranked marketing company after toppling Unilever last year. Coca-Cola was also the most effective brand for the fourth consecutive
year.
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