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Extreme Networks

Extreme Networks, with roots going back to its foundation as networking innovator Cabletron in 1983, is a Siemens Enterprise Communications company. It is a multi-billion dollar provider of hardware, software, and services delivers unified voice, video, and data communications that are open, mobile, and secure. Its Irish base is located in Shannon, Co Clare, and specialises in distributing local area network and enterprise network systems.

Financial Data


By Turnover

(€165.3 million)

By Employees

333rd in Top Companies By Turnover
  • 55
  • €165.3 million


  • Mary Donegan Head of strategy

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