Age: 53
Occupation: Executive chair of the board of Deloitte

Foutty is the highest-ranking female leader in the U.S. for the $21 billion, 100,000-employee accounting and consulting firm. She uses her visibility — and her 280 Twitter characters — to promote the advancement of women in tech and business. Deloitte even created an alter ego of Foutty for Ella the Engineer, the company’s comic book series about girls in STEM.