Prysmian Group, Corning, Sumitomo Electric, LS Cable & System, and Southwire are among the top global optical cable steel wire manufacturers in 2026.

Top Manufacturers Overview

1. Prysmian Group (Italy) Prysmian is the largest global cable manufacturer, producing fiber optic, energy, and armored cables. It has a strong global footprint with over 70 plants worldwide and a diversified portfolio including OPGW and ADSS cables. The company emphasizes R&D, sustainability, and advanced technologies like E3X for energy-efficient cabling, making it a benchmark in the industry .
2. Corning Incorporated (USA) Corning is a pioneer in low-loss optical fibers and photonic components. Its innovations in bend-resistant fibers and high-quality preforms make it a leader in high-speed communication networks. Corning's global reach and technological expertise position it as a top supplier for both terrestrial and submarine fiber optic applications .
3. Sumitomo Electric Industries (Japan) Sumitomo Electric specializes in high-capacity optical fiber cables and advanced materials. With a strong focus on R&D and a presence in over 400 subsidiaries, it supports major global telecom and infrastructure projects. The company is recognized for its quality compliance and innovative solutions in harsh environments .
4. LS Cable & System (South Korea) LS Cable & System is a leader in hybrid power-fiber and HVDC cables, with expertise in armored and offshore wind farm applications. Its global operations span 50+ countries, and it invests heavily in low-latency fibers, eco-friendly materials, and high-capacity AI data center cabling .
5. Southwire (USA) Southwire is a major North American manufacturer of power, control, and specialty cables, including optical fiber steel wire solutions. Its strong financial position allows continuous investment in HVDC technology, offshore wind integration, and high-performance cabling for AI and telecom infrastructure .
6. Nexans (France) Nexans produces sophisticated cable solutions for energy, communication, and industrial applications. It is notable for eco-friendly manufacturing, renewable energy integration, and submarine cable expertise, making it a key player in global optical cable markets .
7. Yangtze Optical Fibre and Cable (YOFC, China) YOFC focuses on ultra-long-haul and FTTH fiber optic cables, with a strong presence in Asia-Pacific and exports to 80+ countries. Its R&D includes dispersion-shifted fibers for 400G systems and sustainable manufacturing practices .
8. Furukawa Electric (Japan) Furukawa Electric, also known as OFS Optics, provides telecom and submarine fiber optic solutions, emphasizing innovation in low-loss fibers and high-speed network applications .
9. Sterlite Technologies (India) Sterlite Technologies specializes in fiber optic cables and network solutions, with a focus on cost-effective, high-performance products for global telecom infrastructure .
10. CommScope (USA) CommScope delivers fiber optic connectivity and cabling solutions for data centers and telecom networks, combining innovation with a broad product portfolio .

Key Considerations for Selection

• Global Reach: Companies with operations in multiple continents ensure reliable supply chains.
• Technological Innovation: Look for low-loss fibers, armored designs, and high-capacity solutions.
• Product Portfolio: Includes OPGW, ADSS, FTTH, submarine, and hybrid power-fiber cables.
• Sustainability & Compliance: ISO, IEC, and environmental certifications indicate long-term reliability.
• R&D Investment: Continuous innovation in materials, splicing, and high-speed fiber technology is critical for future-proof networks. This ranking reflects the 2025–2026 industry landscape, highlighting manufacturers that combine scale, innovation, and supply chain resilience to meet global optical cable steel wire demands .