Arista Networks

Cloud and AI data-centre switching

Overview

Arista Networks sells Ethernet switching and routing for AI clusters, data centres, campus networks and wide-area networks, all running its Extensible Operating System (EOS)[41]. Revenue for 2025 was US$9,006 million, up 29%[41]. In June 2025 Arista completed the acquisition of VeloCloud, adding an SD-WAN portfolio for branch networks[41]. Arista is incorporated in Delaware, headquartered in Santa Clara, California, and listed on the New York Stock Exchange. It employed approximately 5,115 full-time staff on 31 December 2025[41], a small workforce for a company of its revenue.

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