Arista Networks builds the high-speed switches and networking software that move data inside cloud data centers, competing directly with the networking equipment Cisco has long dominated. Its products are built around a single operating system that runs across its whole hardware lineup, which large cloud operators and enterprises value for consistency and easier automation at scale. Arista's customer base is concentrated among a small number of very large cloud and enterprise buyers, including major hyperscale cloud providers, which makes its revenue sensitive to the data center buildout plans of a handful of companies. As AI workloads increase the amount of data moving between servers, demand for the high-bandwidth networking gear Arista specializes in has grown alongside it.