Marc, called by Fortune America's leading advisor for the new CEO, has advised and trained over 35 CEOs, including the CEOs of Disney and Ford. Most of Marc’s clients have delivered outstanding performance — almost all outperforming their peer groups.

Over the last several years, Marc has prepared roughly one in four new CEOs in the Fortune 100. In 2017, Shawn Tully profiled Marc’s work in a five-page article in Fortune Magazine.

Marc also founded Hercules Solutions LLC, a software platform built to support CEOs in Investor Relations, which was sold to the New York Stock Exchange in 2021.

Marc taught governance at the Wharton Spencer Stuart Director’s Institute and publishes frequently in the Harvard Business Review. Marc is a co-founder and Executive Vice-Chairman of Cambridge in America, an organization that has raised over $900 million for Cambridge. Marc conceived and created two CEO forums: the Bower Forum, McKinsey & Company’s training program for new CEOs and Prium, a leading CEO roundtable.

Marc has a BA with honors in History from the University of Pennsylvania, an M. Phil. in International Relations from Cambridge University, where he was a Thouron Fellow, and an MBA from The Harvard Business School. Previously, Marc was an Associate at McKinsey & Company, where he co-authored a best-selling business book on creating growth and performance. From 1998 to 2009, he founded and built a management consulting firm with expertise in strategy and value creation. The firm was acquired by Booz & Company (now part of PwC).

An Honorary Fellow of St John’s College, Cambridge Marc is a Visiting Lecturer at the Cambridge Judge Business School.