Arista Networks, Inc.
Arista Networks designs and sells high-performance networking systems and software for data-intensive environments, with a business built around Ethernet switching, routing, and network operating software. The company’s core platform combines its EOS operating system, NetDL data lake, and CloudVision management software to help customers run large-scale AI, data center, campus, and WAN networks with more automation and visibility. Arista also sells support and subscription-style services, including A-Care and related maintenance contracts, which extend the installed base relationship after the initial hardware sale. Its business is shaped by large, lumpy deployments at a relatively small number of very large customers, especially cloud and AI operators.
Fiscal year 2025 · change from previous year
Development 2020–2025
Business
Share of revenueHigh-speed Ethernet switches used in AI clusters, data centers, and campus networks.
Routing platforms for WAN, data center interconnect, and enterprise edge connectivity.
EOS, CloudVision, NetDL, AVA, and related management, observability, and security software.
PCS, A-Care, renewals, and technical support tied to installed hardware and software.
Products
Reported · share of revenue- Products84.1 %
- Services15.9 %
Source: 10-K FY2025, revenue the company reports per product line (SEC XBRL). Shares are of the lines shown and add up to 100 %.
Customers
Arista sells primarily to large cloud and AI operators, including hyperscale customers that build and expand massive AI and data center networks. It also serves AI and specialty providers such as AI neoclouds and internet/service providers that need low-latency, high-throughput networking. A broad enterprise base buys Arista for campus, data center, and routing environments, with notable exposure to financial services, government, media and entertainment, healthcare, oil and gas, education, and industrial customers. The company’s customer mix is concentrated, with a small number of very large accounts able to materially influence quarterly revenue timing and product mix.
Hyperscale cloud operators and AI builders that buy large switching and routing systems for AI centers and data centers because they need scale, automation, and fast deployment.
AI neoclouds, specialty providers, and internet/service providers that purchase high-performance networking platforms to support low-latency, high-bandwidth workloads.
Enterprises across financial services, government, healthcare, education, media, manufacturing, and industrial sectors that buy campus, data center, and WAN networking plus management software.
End customers reached through distributors, resellers, systems integrators, and OEM partners that buy Arista products through partner-led procurement and deployment.
Strategy
Arista’s strategy is to extend its 'Centers of Data' architecture across AI centers, data centers, campus centers, and WAN centers, using a common operating model rather than separate legacy networking silos. The company is pushing deeper into AI networking while preserving its core advantage in high-speed Ethernet switching, where it emphasizes reliability, open standards, and automation. Software is a strategic layer in the model: EOS, CloudVision, NetDL, and AVA are intended to increase customer stickiness, improve operations, and expand the value of each hardware deployment. Arista also continues to broaden its enterprise footprint and partner ecosystem so that growth is not dependent only on hyperscale cloud spending cycles.
AI cluster buildouts are driving incremental demand and require high-performance, low-latency Ethernet solutions.
Software and observability tools improve customer retention, simplify operations, and increase the value of each installed network.
A wider enterprise base and stronger channel coverage reduce dependence on a small number of hyperscale customers.
Geography
Q1/2026Arista is headquartered in the United States and sells globally, with its revenue mix still weighted toward the Americas but with a growing international contribution. Management disclosed that non-Americas revenue rose to 20.9% of total revenue in 2025 from 18.2% in 2024, while international revenue was 20.3% in the first quarter of 2025 and 21.8% in the second quarter of 2025. The company’s sales teams are organized by geography as well as by major accounts and verticals, which matters because large customer deployments can shift regional mix materially from period to period. Manufacturing is outsourced to third-party contract manufacturers and merchant silicon vendors, so geography also affects supply chain, freight, and tariff exposure rather than only end-market demand.
Share of the revenue the company reports by geography.
Risks
Arista’s biggest business risk is customer concentration: a small number of large cloud customers can shift orders, product mix, and pricing from quarter to quarter, creating revenue volatility. The company also faces intense competition from Cisco, HPE, Juniper, Nvidia, white-box vendors, and alternative AI interconnect technologies such as InfiniBand and NVLink, which can pressure pricing and design wins. Because Arista relies on third-party manufacturers, logistics providers, cloud service providers, and channel partners, cybersecurity or operational failures at those parties can disrupt deliveries, support, or sales execution. Trade restrictions, tariffs, and evolving regulatory standards can also affect where products can be sold and how much they cost to build and ship.
- Customer concentration and order timing volatilityImpact: HighLikelihood: High
A few very large customers account for a meaningful share of revenue, and their deployment schedules can change quickly based on testing cycles and capex decisions.
Exposure: Microsoft and Meta were specifically disclosed as large customers in prior periods.
- Competitive displacement in AI and data center networkingImpact: HighLikelihood: Medium
The company competes against large incumbents and alternative AI interconnect technologies that can influence buying decisions and pricing.
Exposure - Cybersecurity and third-party dependencyImpact: HighLikelihood: Medium
Arista depends on outsourced manufacturers, logistics providers, cloud providers, and channel partners, all of which can be attack surfaces or points of operational failure.
Exposure - Trade and regulatory complianceImpact: MediumLikelihood: Medium
Networking products must comply with evolving standards and government rules, and tariffs can increase costs for internationally manufactured products.
Exposure: International sales and supply chain
Accounting
Judgemental itemsProduct and service revenue are recognized at different times, so contract structure and delivery timing directly affect reported revenue by quarter.
Impact: Can shift revenue between periods and affect gross margin mix
The company has increased inventory and commitments to manage AI-related demand and supplier lead times, which requires judgment on demand forecasts and obsolescence.
Impact: Can affect working capital, cost of revenue, and reserve levels
Large orders depend on customer qualification and rollout schedules, making quarterly comparability less stable than annual trends.
Impact: Can distort near-term growth and margin analysis
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Last updated: 24/09/2026