As of September 2021, the following 10 global corporations have the highest market capitalization:
1. Apple Inc.
2. Saudi Aramco
3. Microsoft Corporation
4. Amazon.com Inc.
5. Alphabet Inc. (parent company of Google)
6. Facebook Inc.
7. Tencent Holdings Limited
8. Tesla Inc.
9. Taiwan Semiconductor Manufacturing Company Limited (TSMC)
10. Alibaba Group Holding Limited
Please note that market capitalization values can fluctuate over time, and the ranking might change.