William O. Hall, III

Managing Director



Bill has been in the investment advisory and wealth management business for more than 30 years. Currently, he is President and CEO of Plimsoll Mark Trust, a Portland, Maine-based trust company. He is also a shareholder and board member of Hartland & Co., a $17 billion global asset manager. Before founding Plimsoll Mark in 2009, Bill served as Chief Executive of WP Stewart Asset Management and Executive Officer of WP Stewart & Co., Ltd, a publicly traded investment firm managing more than $12 billion from its offices in New York City, London, Bermuda, and Hong Kong.

Bill is an avid sports fan and wrote the bestselling book Changing the Game: How to Profit from Your Passion for Sports. He lives with his family in Cape Elizabeth, Maine.