Bill Achtmeyer started his career in the strategy consulting industry in 1977 at Bain and Company, where he rose to being one of ten Senior Partners leading the firm, working alongside Bill Bain and Mitt Romney. He started the mergers and acquisitions practice and led Bain’s North American business development activities.

In 1991, Bill Co-founded Parthenon and became Chairman, CEO, and Managing Partner in 1994. Parthenon merged with EY in the fall of 2014. Bill continued to lead the organization until the end of 2019. At the time of handing over the reins, he had built EY-Parthenon into a $2 billion, 500 partner, and 5,000 consultant juggernaut.

Not content with having built the world's fifth largest strategy firm, Bill moved on to building a CEO Advisory boutique Acropolis in 2021, along with his long time friend and associate, Professor Michael Porter, and other strategy, investment and economics stalwarts.

Bill developed a proprietary strategy construct called The Full Potential Paradigm ™ (FPP) that he utilized and perfected throughout his career. FPP helps CEO's set growth and margin expectations for investors and employees that are fact based and reliable.

During the course of working in the consulting business for over forty years, Bill has advised a number of Chief Executive Officers on the strategic direction of their corporations. Bill is recognized as an expert in corporate strategy, as well as mergers and acquisitions strategy and integration.

Philanthropically, Bill has served as Chairman of numerous organizations, including: the Boston Symphony Orchestra; the Massachusetts Society for the Prevention of Cruelty to Children; the Massachusetts High Technology Council; Tenacity; Lawrence Academy; and the Tuck School of Business at Dartmouth College. In June of 2012, Bill stepped down as Chairman of the Board of Overseers at the Tuck School of Business at Dartmouth after 11 years of service. At that time, he was awarded the Overseers’ Medal in recognition of his dedicated service to Tuck, where he has hooded over 2,600 students at investiture ceremonies. Finally, he has served as Vice Chair at his alma mater, Belmont Hill, for over two decades.

Bill holds an A.B. from Princeton University (Woodrow Wilson School of Public and International Affairs) and an M.B.A. from the Tuck School of Business at Dartmouth. Bill has five children and resides in Boston, MA with his wife Alli.