Marissa Mayer is an American business executive, software engineer, and investor. She served as President and Chief Executive Officer of Yahoo! from 2012 to 2017, a period that concluded with the company's sale to Verizon.
Prior to her leadership role at Yahoo!, Mayer was a long-time executive, usability leader, and key spokesperson for Google, where she was employee No. 20 and the company's first woman software engineer.