1. Adtran
2. Cisco Systems Inc.
3. Citrix Systems Inc.
4. Commverge Solutions
5. Extreme Networks
6. F5 Inc.
7. Hewlett Packard Enterprise Company
8. Huawei Technologies Co. Ltd.
9. IBM Corporation
10. Juniper Networks Inc.
11. NEC Corporation
12. Nokia Corporation
13. Oracle Corporation
14. Samsung Electronics Co. Ltd.
15. Telefonaktiebolaget LM Ericsson
16. Telstra Group Limited