Marissa Mayer

Marissa Ann Mayer, born May 30, 1975, is an American business executive, software engineer, and investor. From 2012 to 2017, she was Yahoo!’s president and CEO, overseeing its sale to Verizon. Earlier, she was Google’s 20th employee, its first female software engineer, and a longtime executive and usability leader who often represented the company publicly. After Yahoo!, she co-founded Sunshine; when its assets were sold in 2025, she launched the AI company Dazzle AI.

Mayer grew up in Wausau, Wisconsin. Her mother, Margaret, was an art teacher of Finnish descent; her father, Michael, worked as an environmental engineer for water companies. Her grandfather, Clem Mayer, contracted polio at age seven and later served as mayor of Jackson, Wisconsin, for 32 years. She has a younger brother and has described her childhood self as “painfully shy.” She kept a packed schedule of after-school activities—ballet, ice-skating, piano, swimming, debates, and Brownies—and continued piano and ballet through middle and high school, crediting ballet with teaching her “criticism and discipline, poise, and confidence.” From an early age, she showed a strong interest in math and science.

At Wausau West High School, Mayer excelled in chemistry, calculus, biology, and physics. She was president of the Spanish club, treasurer of the Key Club, captain of the debate team, and captain of the pom-pom squad. Her debate team won the Wisconsin state championship, and the pom-pom squad was state runner-up. She also worked as a grocery clerk. After graduating in 1993, Wisconsin Governor Tommy Thompson selected her as one of two state delegates to the National Youth Science Camp in West Virginia.

Mayer entered Stanford University intending to become a pediatric neurosurgeon and took pre-med courses. She later switched to symbolic systems, a major combining philosophy, cognitive psychology, linguistics, and computer science. At Stanford, she danced in the university ballet’s Nutcracker, joined parliamentary debate, volunteered at children’s hospitals, and helped bring computer science education to Bermuda’s schools. During her junior year, she taught a symbolic systems class under Eric S. Roberts; it was so well received that Roberts asked her to teach another class that summer. She received the Centennial Teaching Award and the Forsythe Award. She graduated with honors in 1997 with a BS in symbolic systems and earned an MS in computer science in 1999, both specializing in artificial intelligence. Her undergraduate thesis built travel-recommendation software that gave advice in natural-sounding human language.

In 2009, the Illinois Institute of Technology awarded her an honorary doctorate in engineering for her work in search. She interned at SRI International in Menlo Park, California, and at Ubilab, UBS’s research lab in Zurich, Switzerland. She holds several patents in artificial intelligence and interface design.

After Stanford, Mayer had 14 job offers, including a teaching position at Carnegie Mellon and a consulting role at McKinsey & Company. During her Google interview, co-founder Sergey Brin quizzed her on artificial intelligence and user-friendly web design. She joined Google in 1999 as employee number 20 and its first female software engineer, initially writing code and leading small engineering teams to develop and design search offerings. Though primarily a software engineer, she moved into user interface design and became known for her meticulous attention to detail, which led to a promotion to product manager and later director of consumer web products. She oversaw the layout of Google’s famously sparse search homepage, arguing that other search engines were too cluttered and that usability required reducing clutter. She was also part of the three-person team behind Google AdWords, which generated 96% of the company’s revenue in the first quarter of 2011.

In 2002, Mayer launched the Associate Product Manager (APM) program, a mentorship initiative to recruit and groom new talent for leadership. Each year she selected a few junior employees for the two-year program, which included extracurricular assignments and intensive evening classes. Notable APM graduates include Bret Taylor and Justin Rosenstein. In 2005, she became vice president of search products and user experience. She played key roles in developing Google Search, Google Images, Google News, Google Maps, Google Books, Google Product Search, Google Toolbar, iGoogle, and Gmail. She held that VP role until the end of 2010, when then-CEO Eric Schmidt asked her to head local, maps, and location services—a move widely seen as a demotion. That same year, Schmidt promoted her to Google’s operating committee, making her its youngest member. In 2011, she secured Google’s acquisition of a survey company.