Ginni Rometty
Ginni Rometty
Company: IBM
Global 500 rank: 57

Rometty got her start in 1979 at the General Motors Institute, a program that allowed recent college grads to try out various jobs at the auto giant.

BS, Computer Science and Engineering, Northwestern University, 1979

By Colleen Leahey, reporter - Last updated July 09 2012: 11:40 AM ET