Silicon Valley's leading women
Mayer is a symbolic systems and computer science graduate of Stanford University. She was Google’s first female engineer when she joined the search giant in 1999.
Pictured here speaking at the FORTUNE Most Powerful Women Dinner in New York last year.
Whitman is a Princeton and Harvard Business School graduate who has served as an executive at DreamWorks, The Walt Disney Company, Hasbro and Procter & Gamble.
Pictured here speaking during "One on One: Ginni Rometty" at the Fortune Most Powerful Women Summit last year.
Image: Asa Mathat / Fortune Live Media