1. Adtran Inc.
2. Adva Optical Networking SE
3. Advanced Micro Devices Inc.
4. Aliathon Technology
5. Allied Telesis Inc.
6. Belkin Corporation
7. Ciena Corporation
8. Cisco Systems Inc.
9. Coriant Inc.
10. ECI Telecom Ltd.
11. Ekinops SA
12. FiberHome Communication Technology Co. Ltd.
13. Fujitsu America Inc.
14. Huawei Technologies Co. Ltd.
15. Infinera Corporation