?- Corning Inc.
- Sumitomo Electric Industries Ltd
- Finisar Corporation
- Leoni AG
- Prysmian Group
- Coherent Inc.
- Furukawa Electric Co. Ltd
- LS Cable & System (LS Group)
- Sterlite Technologies Ltd
- Yangtze Optical Fiber and Cable Joint Stock Ltd Co.
- Hengtong Group Co. Ltd
- Fujikura Ltd
- Nexans
- Commscope Inc.
- Hitachi Cable America Inc. (Hitachi Cable)
- Nestor Cables Ltd
- KST Cable Co. Ltd
- Communication Cable System Indonesia PT
- Reichle & De-massari AG (R&M)
- UnitekFiber Solutions
- FOLAN
- Multilink Inc.
- OFS Fitel
LLC.
- AFL Hyperscale
- HYESUNG Cable & Communication Inc.
- Schneider Electric SE