OFS Optics, a Furukawa Electric subsidiary founded in 2001, operates as a premier manufacturer of fiber-optic cables specializing in cutting-edge fiber-optic technologies. Yangtze Optical Fibre and Cable Joint Stock Limited Company (YOFC) (Stock Code: 601869. Industry: Telecommunications, Broadband, 5G Wireless Networks Key Products: Why. YOFC is the only company in the world that has independently possessed the manufacturing technology of all three mainstream preforms (PCVD, VAD and OVD), and successfully achieved the industrialization of preform manufacturing technology. In 2021, YOFC won a gold medal from EcoVadis. YOFC has. This updated list ranks the 20 largest fiber-optic cable companies worldwide and summarizes what each vendor is best known for—core product lines, regional strengths, and typical project fit. Use it as a fast shortlist when planning new FTTH/FTTA or data-center builds. They are headquartered in locations across the globe, including the United States, China, Brazil, and India, with founding years ranging from 1964 to 2019. These cables carry data using light, which allows faster speeds and better signal quality. Many companies now produce fiber solutions, yet only a few stand out for consistent performance and trusted.