Kantar Taps Dentsu Veteran Jeff Greenspoon as Americas CEO
- Jeff Greenspoon will assume the role of CEO for Kantar’s Americas region starting August 4, 2025, and will report directly to the company’s global CEO, Chris Jansen, based in New York.
- Greenspoon joins from dentsu to take over from Wayne Levings, who will step back to the UK to dedicate his efforts to his role as Chief Client Officer after leading Kantar’s Americas division for two years.
- Kantar specializes in marketing data and analytics, leveraging a combination of behavioural and attitudinal insights along with expert knowledge to help brands decode consumer behavior and guide their strategic planning.
- Greenspoon highlighted that his attraction to Kantar stems from its distinctive combination of worldwide expertise, reliable marketing resources, and a strong conviction in the transformative impact of valuable insights, expressing enthusiasm to contribute innovative ideas and foster stronger collaborations.
- His appointment signals Kantar’s intent to bring fresh energy and future-focused leadership to unlock more client value and redefine marketing’s impact across the Americas.
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Charles Kantor will transfer his position as Managing Director to Gautier Cloix, former Managing Director France of the American data analysis company Palantir.

Kantar appoints Jeff Greenspoon as CEO, Americas
NEW YORK, June 11, 2025 /PRNewswire/ -- Kantar, the world's leading marketing data and analytics company, has appointed Jeff Greenspoon as CEO for the Americas. Jeff will partner closely with clients and Kantar's industry strategists, consultants and analytics experts in…
Kantar appoints Jeff Greenspoon as CEO for Americas region
Kantar, the marketing data and analytics company, has appointed Jeff Greenspoon as CEO for the Americas. Jeff will partner closely with clients and Kantar’s industry strategists, consultants and analytics experts in the Americas to help the world’s top brands build the creative, media and brand strategies that shape their future. Reporting to Chris Jansen, Kantar’s […] The post Kantar appoints Jeff Greenspoon as CEO for Americas region appeared …
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