John Costello serves as an advisor and investor at ZeroToOne.AI and BrandRank.ai, contributing expertise in Gen AI platforms and SaaS solutions. As CEO of Costello Ventures, John provides guidance to companies across various sectors, including consumer products and technology. John holds significant positions on the Board of Directors for American Rivers and FabFitFun, and is an advisor for Canva and UNTUCKit. Additionally, John is involved with the Modern Marketing Association as Chairman Emeritus and serves as a trustee for Silicon Couloir, supporting business growth in Teton County. With a long-standing role at the Ad Council, John has facilitated impactful public service campaigns.
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