Elizabeth Holmes, w
Alma Mater: Stanford University (Dropped out)
Website: theranos
Residence: Palo Alto, America
At age 31, Elizabeth Anne Holmes is the world's youngest self-made female billionaire. Her uncle's death from cancer moved her to develop a way to detect diseases earlier. She dropped out of Stanford University her sophomore year and founded Theranos in 2003 to make cheaper, easier-to-use blood tests. With a virtually painless prick of the finger and a few drops of blood, her labs can quickly run a multitude of tests at a fraction of the price of commercial labs.