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Why CultureX? 

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Founded in 2019 and based in Cambridge, Massachusetts, CultureX delivers actionable insights organizations need to measurably improve their cultures. Harnessing cutting-edge artificial intelligence developed at MIT, CultureX measures culture with high accuracy and pinpoints concrete ways to improve. Based on decades of research and work with dozens of Fortune Global 500 companies, CultureX provides evidence-based interventions tailored to the client’s unique needs. CultureX builds vibrant cultures to enrich the lives of employees and win in the marketplace.

Leadership Team

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Don Sull, Co-Founder

Don is a Senior Lecturer at the MIT Sloan School of Management, where he teaches strategy, serves on the committee overseeing MIT's Master of Business Analytics program, and co-founded and co-directed the X-Lab to run randomized controlled trials in organizations.


Sull was formerly a Professor of Strategy and Entrepreneurship at Harvard Business School and the London Business School. He earned his bachelor's, master's, and doctorate at Harvard University. Prior to academia, Don worked as a strategy consultant with McKinsey & Company, and a management-investor with the leveraged buyout firm Clayton, Dubilier & Rice.


The Economist named him "a rising star in a new generation of management gurus" and identified his theory of active inertia as an idea that shaped business management over the past century. Fortune listed him among the ten new management gurus. Don has published five books and over 100 case studies and articles, including ten best-selling Harvard Business Review articles. He has advised top teams of over 50 Fortune Global 500 companies. 

Charlie Sull, Co-Founder

Charlie has led successful consulting engagements for top teams from around the world around a variety of strategic and cultural issues, and published several articles about related research in leading journals. Prior to co-founding CultureX, Charlie co-founded Charles Thames, a boutique advisory firm specializing in strategy execution. Charlie graduated from Harvard College, where he was the President, Business Manager, and Tech Board Founder of the Harvard Lampoon.  

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