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Leo Burnett
Founded in Chicago in 1935, Leo Burnett Worldwide is a wholly-owned subsidiary of Paris-based Publicis Groupe S.A.
+1 312-220-5959
Latest News
Nov. 11, 2026
Bannerflow Expands into UK and US with new London and New York Offices
Tenzing-backed launch marks the next stage of growth for creative automation platform, which is trusted by more than 2,000 brands
Nov. 11, 2026
M&S Food and Mindshare win Grand Effie at the 2026 Effie Awards UK
Thirty-one Gold, Silver and Bronze Effies were also awarded this year with adam&eve\TBWA the biggest agency winner