Please note that not all billionaires have disclosed their complete educational qualifications publicly.

1. Bill Gates (Microsoft): Bill Gates attended Harvard University but dropped out before completing his degree. However, he received an honorary degree from Harvard later in recognition of his contributions to the field of technology.

2. Mark Zuckerberg (Facebook): Mark Zuckerberg attended Harvard University but also dropped out to focus on building Facebook.

3. Larry Ellison (Oracle): Larry Ellison attended the University of Illinois at Urbana-Champaign and the University of Chicago but did not complete his degree.

4. Larry Page (Alphabet/Google): Larry Page earned a Bachelor of Science degree in Computer Engineering from Stanford University and later pursued a Master's degree in Computer Science at Stanford as well.

5. Sergey Brin (Alphabet/Google): Sergey Brin also attended Stanford University and earned a Bachelor of Science degree in Mathematics and Computer Science. He later pursued a Ph.D. in Computer Science at Stanford but did not complete it.

6. Elon Musk (Tesla, SpaceX): Elon Musk attended Queen's University in Canada for two years and transferred to the University of Pennsylvania, where he earned dual Bachelor's degrees in Physics and Economics.

7. Jeff Bezos (Amazon): Jeff Bezos attended Princeton University and graduated with a Bachelor of Science degree in Electrical Engineering and Computer Science.

8. Jack Ma (Alibaba): Jack Ma attended Hangzhou Teacher's Institute (now known as Hangzhou Normal University) and graduated with a Bachelor's degree in English.

9. Steve Ballmer (Former CEO of Microsoft): Steve Ballmer attended Harvard University and graduated with a Bachelor's degree in Applied Mathematics and Economics.

10. Michael Dell (Dell Technologies): Michael Dell attended the University of Texas at Austin and studied pre-med for a short period before dropping out to focus on building his computer business.