Larry Page, Google

Page, 40, helped co-found Google with his partner Sergey Brin in a Stanford laboratory nearly 20 years ago. Since that time, he's amassed nearly $32.3 billion in net worth, according to Forbes' latest list, putting him No. 17 on the overall list.

Since that time in August of 1998, Page has gone on to help transform Google into more than just the world's leading search engine. The company has its arms in almost every area of technology, including mobile devices, Internet of Things, home automation, driverless cars, and health.

Even though Google is moving into other areas, its basic business is still search, which is incredibly profitable. For the fourth quarter, Mountain View, Calif.-based Google earned on a non-GAAP basis $12.01 share, generating $13.55 billion in revenue, excluding traffic acquisition costs (TAC).

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