Financial research concept

Networking Top-Two End-Customer Revenue Concentration

Networking top-two end-customer revenue concentration measures the combined share of revenue generated by the issuer's two largest disclosed end customers.

By Lee BaileyPublished Sep 25, 2026

Research context

See what supports this page, how current it is, and where comparable or historical context is available.

Research date: Sep 25, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context: 16 connected conceptsPart of the reviewed Networking Platform Economics; issuer definitions remain distinct where disclosed.
Company examples: 1 reviewed companyRelationships reflect supported examples, not a normalized cross-company KPI ranking.

The top two represented approximately 42% of total revenue
The largest customer alone was more than one-quarter of revenue
Concentration can amplify both growth and volatility
Part of the Networking Platform Economics
See It in Company Research
Continue Research

Networking top-two end-customer revenue concentration measures the combined share of revenue generated by Arista's two largest disclosed end customers.

Arista disclosed one end customer at 26% of 2025 revenue and another at 16%.

The top two represented approximately 42% of total revenue

Adding the two disclosed shares gives approximately 42% of total revenue.

That leaves about 58% for all other customers combined.

The largest customer alone was more than one-quarter of revenue

At 26%, the largest disclosed end customer represented more revenue than the entire non-Americas geographic mix of 20.9%.

That comparison illustrates why geographic diversification does not automatically imply customer diversification.

Concentration can amplify both growth and volatility

Large customer deployments can accelerate revenue when capital spending rises, but can also increase sensitivity to qualification timing and pricing leverage.

Use Networking Non-Americas Revenue Mix to keep geographic mix separate from customer concentration.

Primary source: Arista Networks 2025 Form 10-K.

Part of the Networking Platform Economics

Connect networking product-category mix, hardware and support economics, customer and geographic concentration, deferred-revenue conversion, and supply-chain exposure to understand networking-platform performance.

Browse the full operating model in Company Analysis →

Where this concept fits

Unit economics and concentrationCurrent relationship
Product and service gross margins show the different cost structures of hardware-oriented shipments and support delivery. Non-Americas mix and top-two customer concentration show where revenue is generated and how dependent results are on a small number of large customers whose deployment timing and pricing can affect reported margins.
Non-Americas Revenue Mix Product Gross Margin Service Gross MarginTop-Two Customer ConcentrationCurrent concept
Platform mix and revenue composition
Core, Cognitive Adjacencies, and Software and Services describe Arista's product-category mix, while product and service revenue use the financial-statement classification. Product and service revenue mix therefore answer a different question from product-category mix and should be analyzed separately.
Cognitive Adjacencies Mix Core Revenue Mix Networking Product Revenue Product Revenue Mix Networking Service Revenue Service Revenue Mix Software & Services Mix
Deferred revenue and supply-chain commitments
Deferred revenue and its opening-balance recognition rate connect product acceptance and support contracts to future recognition, while the two-year future-revenue mix adds timing. Inventory write-downs and purchase commitments show the operating risk created when long-lead sourcing and product transitions outrun realized customer demand.
Networking Deferred Revenue Deferred Revenue Recognition Rate Two-Year Future Revenue Mix Inventory Write-Downs Purchase Commitments

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

ANETOpen operating-model research →16 of 16 reviewed concepts in Networking Platform EconomicsUnit economics and concentration4 of 4 bridge concepts supportedContinue through this bridge:Non-Americas Revenue Mix Product Gross Margin Service Gross Margin

Continue Research

Continue from the concept into the Grizzly Bulls research surface that best matches the next question. These links are research continuations, not recommendations or required steps.

Continue Research

Compare public companies

Compare the 42% top-two customer share with the remaining revenue pool and geographic mix.

Continue research

Explore more topics in the Financial Research Encyclopedia.