Ellen Kullman
Chair, Carbon
After studying mechanical engineering at Tufts and earning her MBA at Kellogg, Ellen began her career at General Electric and then DuPont—never fathoming that she would rise to the top of that Fortune 500 giant. She led Dupont as Chair and CEO for seven years until 2015. Then she did something no one expected: She moved to Silicon Valley to lead Carbon, a 3D printing startup, where she remains Chair. Ellen is also on the boards of Amgen, Dell Technologies, and Goldman Sachs.