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J.J. Kardwell is the current CEO at Constant. Prior to this, they served as the Board of Directors at ProtectCELL and as the CEO & Co-founder of EverString.

Kardwell has always been interested in technology and its potential to make a difference in people's lives. They co-founded EverString in September 2012 with the goal of providing machine learning-enhanced data and automated modeling to B2B companies to improve decision making. Under their leadership, EverString grew to become a leading B2B data company, providing company data with the highest accuracy and coverage.

In November 2020, EverString was acquired by ZoomInfo (NASDAQ: ZI). Following the acquisition, Kardwell continued to serve as President until November 2016, when they became CEO.

Kardwell is passionate about using technology to help businesses grow and thrive. They are constantly looking for new ways to use technology to improve decision making and help businesses reach their full potential.

J.J. Kardwell has a MBA from Harvard Business School and a BA from Harvard University.

Some direct reports include Mike Marinescu - Chief Technology Officer, David Gucker - Chief Operating Officer, and Anthony Quon - Chief Information Officer.