Alternatives to Ciena

Ottawa-based telecommunications company developing advanced optical networking solutions.

Designs, develops, and sells high-performance networking products and services.

Sedona Systems' NetFusion platform provides real-time visibility and deep analytics for optimizing and automating Service Provider optical and IP networks.

Global leader in telecommunications, network infrastructure, and mobile devices.

Swedish multinational networking and telecommunications company providing infrastructure, software, and services.

Global leader in telecommunications equipment, consumer electronics, and digital solutions.

Supplier of optical networking equipment and laser components.

Designs and manufactures advanced photonic semiconductor chips for optical transceivers, LiDAR, and high-performance applications.

Software company building cloud-native networking solutions for service providers and hyperscalers.

Pan-African telecommunications provider delivering integrated network services and digital infrastructure across Africa.

Cellwize provides a cloud-native, AI-driven platform called Chime to automate 5G network configuration, management, and optimization for mobile network operators.

WEEZIE provides a cloud-based platform for telecom companies to map and manage their FTTx networks.

European tower company providing passive infrastructure for mobile network operators.

Designs and sells high-performance cloud networking solutions for data centers and enterprise environments.

Global cloud connectivity and networking services provider.

Global provider of communications infrastructure, including fiber, colocation, and cloud connectivity.

GoFibre is a Scottish full-fibre broadband provider building and operating its own network in towns and cities across Scotland and the North of England.

A telecommunications company offering mobile and broadband services.

TelecomOS provides a cloud-native, AI-powered platform for telecom operators to automate network operations and services.

Technology infrastructure and networking company providing enterprise solutions

Wireless equipment maker focusing on fixed wireless access and 5G routers for enterprise manageability.

Developing AI-native RAN (AI RAN) networks for the next era of telecommunications.

Develops next-generation fixed wireless access (ngFWA) technology for reliable and affordable internet connectivity.

Fabless technology company developing next-generation communications hardware for 5G and beyond.

Prodapt designs, builds, manages, and modernizes networks for telecom and tech enterprises globally.

Indian conglomerate investing heavily in AI infrastructure and services.

Hyperconverged edge solutions for AI, telecom infrastructure, and enterprise networking.

The largest private owner and operator of communications infrastructure in the United States.

A leading telecommunications company providing mobile, broadband, DTH, and digital services across India and Africa.

Cradlepoint provides cloud-delivered LTE and 5G wireless network solutions for businesses, enabling secure and reliable connectivity anywhere.

Enabling scalable, low-cost space-to-Earth laser communications.

Semiconductor startup developing novel DSP innovations for AI-driven networks and data centers.

CoreSite provides carrier-neutral data centers, colocation, and interconnection services.

Operator of internet satellites.

UK-based full-fibre broadband network provider building and operating its own infrastructure.

API-driven cloud cellular network enabling enterprise IT integration for IoT connectivity.

Parallel Wireless is a leading OpenRAN company providing cloud-native 5G/4G/3G/2G OpenRAN architecture for mobile operators.

Global provider of open, disaggregated networking and communications solutions for broadband access and optical networking markets.

Teridion provides a global, high-performance WAN service built on the public cloud, offering fast setup and scalable bandwidth.

Provides software-based solutions to mobile operators for significantly reducing energy consumption in base stations.

Siklu offers a comprehensive portfolio of mmWave wireless solutions for multi-Gigabit connectivity in various network configurations.

RADCOM provides an AI-powered network intelligence platform for telecom operators to assure 5G network performance and customer experience.

Canadian subsidiary of Huawei, focusing on R&D in telecommunications, particularly 5G technology.

Designs, develops, and manufactures high-performance fiber-optic components for dynamic wavelength management and signal conditioning.

Satellite operator providing high-speed broadband internet to Southeast Asia and Pacific Islands.

A multinational mass media, telecommunications, and entertainment conglomerate.

Canadian telecommunications and media company providing wireless, cable, internet, and sports entertainment services.

Automates network documentation, troubleshooting, and security for enterprises.

Provides high-speed fiber optic network infrastructure for businesses and data centers.

Institutional VoIP infrastructure management for agencies and carriers.

Starlink is SpaceX's satellite internet constellation providing high-speed broadband internet access to underserved areas worldwide.

Designs, manufactures, and launches advanced rockets and spacecraft, aiming to make humanity multiplanetary.

Australian telecommunications company providing mobile, broadband, and voice services.

The world's first SASE platform, converging SD-WAN, network security, and a global private backbone.

Arista Networks is a leader in data-driven, client-to-cloud networking for data center/AI, campus, and routing environments.