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John Costello

Operator

John Costello is a seasoned marketing and brand executive best known for senior leadership roles at some of America's most recognized consumer companies. He served as President of Global Marketing and Innovation at Dunkin' Brands, where he was instrumental in repositioning the Dunkin' Donuts brand and driving its global expansion strategy. Earlier in his career, he held the role of Chief Marketing Officer at The Home Depot and also served in senior marketing roles at Yahoo! and Procter & Gamble, building a reputation as a versatile operator across retail, digital media, and consumer goods. Costello now serves as Vice Chair of the Board of Directors at ZeroToOne.AI, an artificial intelligence company, where he contributes strategic and governance oversight. His career spans traditional brand marketing, digital advertising, and retail media, giving him a broad perspective on how marketing and technology intersect.

Last updated Oct 25, 2026 by ATDb automated enrichment

Role
Vice Chair, Board of Directors
Company
ZeroToOne.AI
Based
New York, New York, United States
Boards
1

AI-drafted from public sources1 source cited

Years in industry
40 years

Bio

John Costello is a seasoned marketing and brand executive best known for senior leadership roles at some of America's most recognized consumer companies. He served as President of Global Marketing and Innovation at Dunkin' Brands, where he was instrumental in repositioning the Dunkin' Donuts brand and driving its global expansion strategy. Earlier in his career, he held the role of Chief Marketing Officer at The Home Depot and also served in senior marketing roles at Yahoo! and Procter & Gamble, building a reputation as a versatile operator across retail, digital media, and consumer goods. Costello now serves as Vice Chair of the Board of Directors at ZeroToOne.AI, an artificial intelligence company, where he contributes strategic and governance oversight. His career spans traditional brand marketing, digital advertising, and retail media, giving him a broad perspective on how marketing and technology intersect.

Expertise & education

Expertise

Brand StrategyGlobal MarketingRetail MarketingConsumer Goods MarketingDigital AdvertisingMarketing InnovationCorporate Governance

Speaking topics

Brand BuildingMarketing InnovationRetail Marketing Strategy

Recognition

Notable achievements

  • Led global brand repositioning of Dunkin' Donuts as President of Global Marketing and Innovation at Dunkin' Brands
  • Served as CMO of The Home Depot, one of the largest retail advertisers in the United States