Billionaire Profile
Marissa Mayer
Global Rank
#2643

Image: Public domain | via Wikimedia Commons

Marissa Mayer

CEO, Alphabet Inc. (Google)
US
Real-Time Net Worth
$1.3B
As of December 2025
Age
50
Source
Google, Yahoo
Industry
technology
Citizenship
US

Biography

Marissa Mayer is a prominent American business executive, software engineer, and investor. With an estimated net worth of $1.3 billion as of November 2025, she is a notable figure in the tech industry. Mayer's career includes significant roles at Google and as CEO of Yahoo!. Her wealth stems from her long tenure at Google, where she was employee number 20 and the first female engineer. She also held key positions managing several Google products and contributed significantly to the company's search offerings. Following her time at Google, she served as the President and CEO of Yahoo! from 2012 to 2017. Since leaving Yahoo!, Mayer has co-founded Sunshine, an AI-focused venture developing applications for photo sharing and task automation. Mayer is known for her attention to detail, her focus on user experience, and her hands-on management style, which has made her a significant influencer in the tech world.

Wealth Over Time

In-Depth Profile

Early Life

Marissa Ann Mayer was born on May 30, 1975, in Wausau, Wisconsin. Her parents were Michael Mayer, an environmental engineer, and Margaret Mayer, an art teacher. She described herself as a shy child who was involved in various after-school activities, including ballet, piano, and debate. Mayer excelled in school, particularly in math and science. During her high school years, she participated in numerous extracurriculars and was chosen to represent Wisconsin at the National Youth Science Camp.

Rise to Success

Mayer attended Stanford University, where she studied symbolic systems with a focus on artificial intelligence, earning both a B.S. and an M.S. degree. After graduating from Stanford, she received multiple job offers but chose to join Google in 1999 as employee number 20 and its first female engineer. At Google, she worked on developing and designing Google's search offerings, overseeing the layout of the search homepage, and contributing to the company's success. By 2005, she became Vice President of Search Products and User Experience. In 2012, Mayer was appointed President and CEO of Yahoo!.

Key Business Strategies

Mayer's leadership style at Yahoo! focused on innovation and data-driven decisions. She implemented a strategy to improve mobile and social networking services. She also emphasized the importance of attracting top talent and building strong teams. During her time at Google, she was known for her attention to detail and for letting her work speak for itself.

Philanthropy

During the 2021 California gubernatorial recall election, Mayer donated $200,000 against an effort to recall Governor Gavin Newsom. Details on other philanthropy initiatives were not found in the search results.

Career Milestones

1999

Joined Google

Joined Google as employee number 20 and the first female software engineer.

2005

Vice President of Search Products and User Experience at Google

Promoted to Vice President of Search Products and User Experience.

2012

CEO of Yahoo!

Appointed as President and CEO of Yahoo!.

2017

Resigned from Yahoo!

Resigned as CEO of Yahoo! after the company was sold to Verizon.

2018

Co-founded Lumi Labs

Co-founded Lumi Labs, later renamed Sunshine, an AI-focused venture.

2025

Joined the Board of Directors at Starbucks

Joined the board of directors at Starbucks.

Philanthropy & Social Impact

Political

Political Contributions

$0.2M

Donated $200,000 against the recall of Governor Gavin Newsom.

Business Philosophy & Leadership

Leadership Principles

Embrace introversion

Leverages introverted traits, such as focus and analytical thinking.

Let work speak for itself

Focuses on delivering results rather than self-promotion.

Build a strong team

Attracts and empowers top talent.

Data-driven decisions

Use more data to decide to develop new products.

Controversies & Challenges

2015

Telecommuting Ban at Yahoo!

Mayer's decision to end telecommuting at Yahoo was controversial, drawing resistance from some employees.