19. Carly Fiorina Carly Fiorina served as chief executive officer at Hewlett-Packard from 1999 to 2005. A year after joining Hewlett-Packard, Fiorina also became the company's chairman of the board.
She completed a controversial merger with rival Compaq in 2002. However, in 2005 she was forced to quit as the merger could not bring profits she had promised.