17. Larry Page

Title: Cofounder and CEO, Alphabet

Country: US

Age: 42

Larry Page made some major moves this year, starting with a massive overhaul of Google’s business structure in August. He announced via press release that Google would become a subsidiary of new holding company Alphabet, which would oversee all of Google’s ventures, such as Nest, Calico, and Google X, as standalone entities.

Previously the chief executive of Google, Page moved up to helm Alphabet as CEO, leaving company veteran Sundar Pichai in his spot. The change became official in October, and Page even dropped Google’s famous “don’t be evil” slogan from the new company.

Page cofounded Google with Sergey Brin, who will help run Alphabet as president, in 1998, and they've earned fortunes of $42 billion and $38 billion today, respectively. The pair grew the company from a Ph.D project at Stanford into one of the biggest and farthest-reaching tech companies in the world. In addition to its ubiquitous search engine, the company has its hands in everything from home automation and self-driving cars to prolonging human life.