Ciena, also known as Ciena Corporation, is a publicly owned company headquartered in the US. Founded in 1992, the company employs approximately 9080 individuals and reported $4.8B in revenue as of 2025. Specializing in fibre access, Ciena provides network strategy and technology through network hardware, software, and services that support the transport, switching, aggregation, service delivery, and management of video, data, and voice traffic on communications networks.

2025 Revenue

Founded

1992

Headcount

9,078

Headquarters

US

Primary Segment

Fibre access

Ownership

Publicly Owned

Deployments

63

News Summary:

Ciena rejoined the S&P 500 index on May 2, 2026, signaling renewed attention from equity investors as AI data center demand contributes to its valuation. This follows the company's positioning on May 1, 2026, to lead the AI-driven optical networking sector, supported by surging demand and backlog growth. Ciena, a provider of high-speed optical networking equipment, software, and services, plays a critical role in enabling the data flows for modern telecommunications and cloud computing. Earlier, on April 30, 2026, Ciena detailed its advancements in coherent and photonic innovations, which are powering regional and multi-regional "scale across" applications—a new architectural model for distributed AI training extending beyond single data centers. Historically, Ciena was among vertically integrated vendors known for controlling their own digital signal processors (DSPs), achieving success in selling coherent optical ports for long-haul and high-capacity metro routes.

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Ciena offers 9 products in the media tech and telecoms tech industries. Ciena's product portfolio comprises of connectivity and distribution services, fibre access, telecoms network infrastructure and enterprise and telecoms software.
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Ciena's revenues were $4.8B in 2025. Caretta Research has split Ciena's revenue into 5 different product categories, the largest of which is oNTs, which represents 73% of Ciena's revenue.
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Ciena's customers primarily consist of telecoms companies. Examples of Ciena's customers include BT Group, Telefonica and Vodafone. Ciena has commercial and technical partners like Samsung Device eXperience, Telus and Comcast Corporation. Ciena has suppliers like Spotnana.

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