Jeff Greenspoon

Jeff Greenspoon serves as Americas CEO at Kantar, the global marketing data, insights and consulting group that helps brands make critical business decisions through data-driven intelligence. In this role he oversees Kantar's business across North and South America, one of the company's most significant regional operations spanning brand strategy, media measurement, consumer intelligence and marketing effectiveness. Greenspoon has built his career at the intersection of marketing strategy and data-driven brand consulting. Prior to his current role, he held senior leadership positions at Dentsu, where he was President of Solutions at Dentsu Americas, helping to shape the agency network's integrated marketing and data capabilities for clients across the region. His background reflects a consistent focus on connecting marketing investment to measurable business outcomes.

Last updated Oct 23, 2026 by ATDb automated enrichment · Connections updated Oct 26, 2026