1. Amdocs Ltd.
2. AT&T Inc.
3. BT Group plc
4. Cisco Systems
Inc
5. Fujitsu Limited
6. Huawei Technologies Co. Ltd.
7. Intel Corporation
8. KDDI Corporation
9. NEC Corporation
10. Orange S.A.
11. Qorvo Inc.
12. Qualcomm Technologies Inc.
13. Samsung Group
14. T-Mobile US Inc.
15. Telus Communications Inc.
16. Verizon Communications Inc.
17. Vodafone Group plc