1.Bill Gates
William Henry "Bill" Gates III (born October 28, 1955) is an American business magnate, investor, programmer inventor and philanthropist. Gates is the former chief executive and current chairman of Microsoft, the world’s largest personal-computer software company, which he co-founded with Paul Allen.
Gates dropped out of Harvard to start his own company. He had talked this decision over with his parents, who were supportive
of him after seeing how much Gates wanted to start a company. link
2.Mark Zuckerberg
Mark Elliot Zuckerberg (born May 14, 1984) is an American computer programmer and internet entrepreneur. He is best known as one of five co-founders of the social networking website Facebook. As of April 2013, Zuckerberg is the chairman and chief executive of Facebook, Inc.and in 2013 his personal wealth was estimated to be US$16.8 billion.
Zuckerberg dropped out of Harvard in his sophomore year to complete his project to work on facebook. link
3.Steve Jobs
Steven Paul "Steve" Jobs (; February 24, 1955 – October 5, 2011) was an American entrepreneur,marketer, and inventor, who was the co-founder (along with Steve Wozniak and Ronald Wayne), chairman, and CEO of Apple Inc).
Jobs dropped out of college after six months and spent the next 18
months dropping in on creative classes, including a course on
calligraphy.link
4.Gabe Newell
After having dropped out of Harvard University, Newell spent thirteen years working for Microsoft Corporation, ultimately becoming a "Microsoft Millionaire". link