Prysmian Group is currently the world's largest fiber optic cable manufacturer.

Prysmian Group, headquartered in Italy, commands a 15% share of the global fiber optic cable market and operates over 108 manufacturing facilities across more than 50 countries . The company produces a wide range of fiber optic cables, including submarine, fire-resistant, and bend-optimized fibers, supporting long-haul networks, 5G infrastructure, and data centers . Prysmian's vertical integration—from raw materials to finished products—ensures high-quality standards and rapid innovation cycles, making it a dominant force in global telecommunications .

Key Competitors

While Prysmian leads globally, Corning Inc. is a major competitor, holding approximately 10.4% of the global market . Corning, based in the U.S., is renowned for its low-loss optical fibers, bend-insensitive designs, and high-purity glass technology, supplying major telecom operators and data centers worldwide . Other notable suppliers include Fujikura, Sumitomo, CommScope, AFL, and Superior Essex, each with specialized products and regional strengths .

Global Impact

Prysmian's cables are critical for subsea networks, 5G rollouts, and cloud infrastructure, while Corning's innovations support high-speed data transmission and dense network deployments . Both companies invest heavily in R&D and sustainable manufacturing, with Prysmian reducing carbon emissions through eco-jacket innovations and Corning using recycled silica in production . In summary, Prysmian Group is the largest fiber optic cable supplier worldwide, with Corning Inc. as a close second, both shaping the backbone of modern global connectivity.