McCann Worldgroup Named Most Effective Network & McCann Most Effective Agency At 2020 US Effie Awards

NEW YORK, Oct. 1, 2020 /PRNewswire/ -- McCann Worldgroup dominated the 2020 U.S. Effie Awards, most notably winning the Most Effective Agency Network and Most Effective Agency honors in the U.S. This represents the third year in a row that McCann Worldgroup has collected this prestigious...

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