1. Airspan Networks Holdings Inc.
2. Amazon Web Services Inc.
3. American Tower Corporation
4. AT&T Inc.
5. Bell Canada Enterprises Inc.
6. Broadcom Inc.
7. BT Group PLC
8. Capgemini SE
9. China Mobile Limited
10. Ciena Corporation
11. Cisco Systems Inc.
12. Comba Telecom Systems Holdings Limited
13. CommScope Inc.
14. Deutsche Telekom AG
15. Extreme Networks Inc.
16. F5 Inc.
17. FiberHome Telecommunication Technologies Co. Ltd.
18. Fujitsu Limited
19. Hewlett Packard Enterprise Company
20. Huawei Technologies Co. Ltd.
21. Kyocera Corporation
22. Mavenir Systems Inc.
23. Microsoft Corporation
24. NEC Corporation
25. Nokia Corporation
26. NTT DATA Corporation
27. Parallel Wireless Inc.
28. Qualcomm Incorporated
29. Reliance Industries Limited
30. Samsung Electronics Co. Ltd.
31. SK Inc.
32. Sunrise LLC by Liberty Global PLC
33. Telefonaktiebolaget LM Ericsson
34. Telstra Corporation Limited
35. Verizon Communications Inc.
36. Vodafone Idea Limited
37. VVDN Technologies
38. ZTE Corporation