Corning is a materials science company with major product lines including display glass, pharmaceutical packaging, and optical fiber and connectivity products. Corning is the world's largest manufacturer of optical fiber, the medium through which data travels as light across long distances and within data center campuses. As data centers have scaled in size and the distances between buildings and facilities have grown, optical fiber has become a fundamental infrastructure material.

AI data center campuses are physically larger and more bandwidth-intensive than conventional facilities. A hyperscaler building a large AI training campus may occupy multiple buildings connected by fiber networks carrying petabits per second of aggregate data. Inside facilities, the density of optical connections between racks has grown as switch speeds have increased. This combination—more buildings, more racks, more connections per rack—has driven higher volumes of optical fiber procurement.

Corning launched new high-density fiber solutions tailored to AI campus architecture in 2025, optimizing for rapid installation in large-scale builds. Data center has become one of Corning's highest-growth end markets, with revenue exceeding $1B annually and growing double-digit YoY. The company benefits from both the volume growth in fiber demand and its position as the leading supplier, with manufacturing scale and fiber process expertise that is difficult to replicate.