About Us

Using AI from MIT to Understand and Act on the Employee Voice

CultureX combines globally recognized thought leadership with groundbreaking technology to measure and improve organizational cultures

About CultureX

Launched in 2020 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 500 companies, CultureX provides evidence-based interventions tailored to the client’s unique needs.


Don Sull

Co-Founder, CEO
Don is a Senior Lecturer at the MIT Sloan School of Management, where he teaches the introductory strategy course, 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

Charlie has advised the senior executive teams of dozens of multinational organizations on cultural management, strategy development, and strategy execution. He conducts regular research at MIT, and his thought leadership has been featured in the Economist, Harvard Business Review, MIT Sloan Management Review, Bloomberg, CNBC, Fortune, Forbes, the Financial Times, Fast Company, Business Insider, Inc., and more.
With Don, Charlie created the MIT Sloan Management Review // Glassdoor Culture 500, the largest systematic study of corporate culture ever conducted. Charlie graduated from Harvard College, where he was the President of the Harvard Lampoon and wrote a New York Times-bestselling novel.

The Culture 500

CultureX started as a MIT research project, the Culture 500. The MIT Sloan Management Review // Glassdoor Culture 500 is the largest systematic study of corporate culture ever conducted, analyzing 1.4 million Glassdoor reviews from more than 500 of the largest employers in the United States.

Since the launch of the Culture 500, CultureX has been publishing regular articles in MIT Sloan Management Review based on this sample of companies. This research has been covered by many of the largest media outlets in the world and has provided insight about culture to millions of readers. 

Published & Featured In

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The Gold Standard of Cultural Management

CultureX is tightly embedded in the academic community, and thought leaders from some of the world’s premier academic institutions use CultureX’s AI platform to conduct peer-reviewed research about organizational culture. These institutions include MIT, Stanford, Wharton, Oxford, and the University of Chicago. In turn, CultureX will closely collaborate with leading academics to better understand niche domains of culture and build a stronger, evidence-based platform.  

Start your Culture Journey Today

A strong culture can add 20% to your market capitalization,9 and requires little financial investment to build. It will also improve the lives of your employees. Find out how to build a great culture today.