1. ADTRAN Inc.
2. Advanced Micro Devices Inc.
3. Airspan Networks Inc.
4. ALCAN Systems GmbH
5. Analog Devices Inc.
6. Anritsu Corporation
7. AT&T Inc.
8. Cisco Systems Inc.
9. Corning Incorporated
10. Ericsson AB
11. Fujitsu Limited
12. Huawei Technologies Co. Ltd.
13. Keysight Technologies
14. Mavenir Systems Inc.
15. MediaTek Inc.
16. Movandi Corporation
17. NEC Corporation
18. Nokia Corporation
19. NXP Semiconductors N.V.
20. Qorvo Inc.
21. Qualcomm Technologies Inc.
22. Rakuten Mobile Inc.
23. Renesas Electronics Corporation
24. Samsung Electronics Co. Ltd.
25. Singtel
26. Sivers Semiconductors AB
27. T?Mobile USA Inc.
28. Verana Networks Inc.
29. Verizon Communications Inc.
30. ZTE Corporation