1. ​Apple Inc. - market cap of $2.266 trillion.

2. Saudi Aramco - market cap of $2.028 trillion.

3. Microsoft Corporation - market cap of $1.806 trillion.

4. Amazon - market cap of $1.696 trillion.

5. Alphabet Inc. (Google Parent Company) - market cap of $1.301 trillion.

​6. Tencent Holdings Limited has a market cap of $895.6 billion.

​7. Tesla, Inc has a market cap of 827.32 billion

​8. Facebook has a market cap of $760.56 billion.

​9. Alibaba Group Holding Limited has a market cap of $725.27 billion.

​10. TSMC has a market cap of $593.17 billion.

​11. Berkshire Hathaway Inc has a market cap of $545.98 billion.

​12. Samsung Electronics has a market cap of $507.6 billion.

​13. Visa Inc. has a market cap of $433.03 billion.

​14. Johnson & Johnson - market cap of $424.5 billion.

​15. JPMorgan Chase & Co. - market cap of $407.43 billion.

​16. Walmart - market cap of $398.28 billion.

​17. Nvidia Corporation is worth $335.67 billion.

​18. Mastercard Incorporated - market cap of $332.85 billion.

​19. Nestle - market cap of $330.22 billion.

​20. UnitedHealth Group - market cap of $321.38 billion.