| | | | | | | | | |
| Subsidiary | | Jurisdiction of Incorporation / Formation |
| 1. | Tradeweb Markets LLC | | Delaware |
| 2. | BNX LLC | | Delaware |
| 3. | BondDesk Group LLC | | Delaware |
| 4. | Dealerweb Inc. | | New York |
| 5. | DW SEF LLC | | Delaware |
| 6. | Munigroup.com, LLC | | Delaware |
| 7. | Refinitiv US Tradeweb LLC | | Delaware |
| 8. | Tech Hackers LLC | | Delaware |
| 9. | TIPS LLC | | Wyoming |
| 10. | Tradeweb Commercial Information Consulting (Shanghai) Co., Ltd. | | People’s Republic of China |
| 11. | Tradeweb Direct LLC | | Delaware |
| 12. | Tradeweb EU B.V. | | Netherlands |
| 13. | Tradeweb Europe Limited | | England and Wales |
| 14. | Tradeweb Execution Services Limited | | England and Wales |
| 15. | Tradeweb Global Holding LLC | | Delaware |
| 16. | Tradeweb Global LLC | | Delaware |
| 17. | Tradeweb IDB Markets, Inc. | | Delaware |
| 18. | Tradeweb Japan K.K. | | Japan |
| 19. | Tradeweb LLC | | Delaware |
| 20. | Tradeweb Markets International LLC | | Delaware |
| 21. | TW SEF LLC | | Delaware |
| 22. | TWC Limited | | Cayman Islands |
| 23. | TWEL Holding LLC | | Delaware |
