Mark Leslie is currently the managing director of Leslie Ventures, a private investment company. He is also a Lecturer at Stanford Graduate School of Business where he teaches courses in Entrepreneurship and Ethics.

Mark Leslie was the founding Chairman and CEO of Veritas Software. During his tenure as CEO, the company went from 12 employees to 5,500 employees and from a revenue base of $95,000 per year to $1,500,000,000 per year. In 2000 Veritas was the tenth largest independent software company by revenue, the third largest by market capitalization, and achieved the distinction of becoming a Fortune 1000 company.

Mark currently serves on the boards of a number of privately held high-technology corporations, including Big Switch, Nutanix, Liquid Robotics, Model N Software, Proxim Data, Pure Storage, Skybox Imaging, Sugar CRM. In addition, he serves on the NYU Board of Trustees, the NYC Board of Overseers and is the Chairman of the NYU Science Advisory Board.

Mark received a Bachelor of Arts degree in physics and mathematics from New York University in 1966 and completed Harvard Business School's program for management development in 1980.