Jeff Greenspoon
Chief Executive Officer, Americas
Kantar
Jeff Greenspoon is CEO of the Americas at Kantar, the world’s leading marketing data and analytics company. He partners with Csuite leaders to shape creative, media, and brand strategies that drive growth — and is accelerating Kantar’s shift to an AI-native, connected insights platform.
Jeff joined Kantar in August 2025 from dentsu, where he served as Chief Global Client Officer and Chief Business Officer for the Americas. He has advised brands including General Motors, Kraft Heinz, Nestlé, AB InBev, Disney, and Hilton. An entrepreneur at heart, he cofounded digital agency SPOKE (acquired by dentsu in 2014) and serves as an Entrepreneur-in-Residence at Ivey Business School.
Jeff joined Kantar in August 2025 from dentsu, where he served as Chief Global Client Officer and Chief Business Officer for the Americas. He has advised brands including General Motors, Kraft Heinz, Nestlé, AB InBev, Disney, and Hilton. An entrepreneur at heart, he cofounded digital agency SPOKE (acquired by dentsu in 2014) and serves as an Entrepreneur-in-Residence at Ivey Business School.