Darcy is the founder and CEO of Kalion, an industrial biotech company focused on manufacturing glucaric acid and related molecules. He formerly worked at McKinsey & Co. and several different startups. While at McKinsey, one of his key assignments was to develop a strategy for a key bioengineered product for a Fortune 500 company. The strategy proved widely successful for the company, and for over a decade, has driven billions in profits. He received his MA in Philosophy, Politics and Economics while studying at Oxford University on a Rhodes Scholarship. He received two S.B.'s from MIT, one in Electrical Engineering and one in Science, Technology and Society. He is a former member of the Massachussets Institute of Technology's board of trustees and Great Lakes Industrial Technology Council (GLITeC) Advisory Board.