As of my knowledge cutoff in September 2021, here are the top 30 billionaires in the world according to Forbes' real-time billionaire tracker:


1. Jeff Bezos - Amazon

2. Elon Musk - Tesla, SpaceX

3. Bernard Arnault & family - LVMH

4. Bill Gates - Microsoft

5. Mark Zuckerberg - Facebook

6. Warren Buffett - Berkshire Hathaway

7. Larry Ellison - Oracle

8. Larry Page - Google (Alphabet)

9. Sergey Brin - Google (Alphabet)

10. Mukesh Ambani - Reliance Industries

11. Amancio Ortega - Inditex (Zara)

12. Steve Ballmer - Microsoft

13. Francoise Bettencourt Meyers & family - L'Oreal

14. Zhong Shanshan - Nongfu Spring, Beike

15. Carlos Slim Helu & family - America Movil

16. Jim Walton - Walmart

17. Alice Walton - Walmart

18. Rob Walton - Walmart

19. Phil Knight & family - Nike

20. MacKenzie Scott - Amazon

21. Ma Huateng - Tencent Holdings

22. Jack Ma - Alibaba Group

23. Michael Bloomberg - Bloomberg LP

24. Charles Koch - Koch Industries

25. Julia Koch & family - Koch Industries

26. David Koch - Koch Industries

27. Giovanni Ferrero - Ferrero Group

28. Beate Heister & Karl Albrecht Jr. - Aldi

29. Elon Musk - SpaceX

30. Colin Zheng Huang - Pinduoduo


Please note that the rankings and net worth of billionaires may change over time due to fluctuations in their personal wealth and the stock market. It's always a good idea to refer to the latest Forbes' billionaire tracker or other reliable sources for the most up-to-date information.