Safra Catz

Oracle president Safra Catz is routinely referred to as one of the most powerful women in the technology biz -- and for good reason. As president of Oracle since 2004, she's a heavy hitter and in a very strong position to run the joint when -- and if ever -- Larry Ellison calls it a day. And just like her boss, Catz is ever the style maven when it comes to her personal wardrobe.