1. Airspan
2. At&T
3. Corning Incorporated
4. Crown Castle
5. Extenet
6. Nokia
7. Samsung
8. T Mobile
9. Verizon
10. Zenfi
11. Cisco Systems Inc
12. Ericsson
13. Commscope Holding Company Inc
14. Huawei Technologies Co Ltd
15. Nec Corporation
16. Nokia Corporation
17. Samsung Electronics Co Ltd
18. Zte Corporation