A plain-English look at how Arista Networks turns Ethernet switches into $9.0 billion in revenue and a $194.3 billion market value.
A Switch Maker Built for Speed
Walk into a data center run by a major cloud provider and there's a good chance Arista Networks hardware is quietly moving the traffic. Founded in 2004 and based in Santa Clara, California, the company makes Ethernet switches and the software that runs them, aimed squarely at the high-speed networking needs of data centers.
One Operating System, Every Device
Arista's signature idea is simple but powerful: a single extensible operating system runs across its entire device lineup. That consistency has helped the company steadily gain market share since its founding, particularly among customers running demanding, high-speed applications.
Who Buys the Gear
The company operates as one reportable business segment, and its customer list leans heavily on a handful of giants. Microsoft and Meta Platforms are Arista's largest customers, and roughly three-fourths of its sales come from North America — a reminder that even a global technology supplier can have a concentrated home market.
What the Revenue Numbers Show
Arista generated $9.0 billion in revenue in fiscal 2025. To put the growth in context, that revenue climbed 289% from fiscal 2020 to fiscal 2025 — a five-year stretch that turned a mid-sized networking vendor into a much larger player in computer hardware.
Profit That Keeps Pace
Growth alone doesn't guarantee a healthy business, but Arista's profitability has scaled right along with its sales. The company posted net income of $3.5 billion in fiscal 2025, translating to a net margin of 39.0%. Its gross margin sits at 64.1%, a sign that the company keeps a large share of each sales dollar after covering the direct cost of building its switches.
Sizing Up the Balance Sheet
Arista's total assets stand at $19.4 billion. Compared against its $9.0 billion in annual revenue, that balance sheet reflects a company that has accumulated substantial resources relative to its yearly sales — a common pattern for a business generating strong profits year after year.
Market Value and Where Shares Stand
On the stock market, Arista carries a market capitalization of $194.3 billion, with shares recently trading at $159.99 on a 15-minute delayed basis. That valuation works out to a price-to-earnings ratio of 58.2, meaning the stock trades at a multiple well above its current annual earnings — a figure investors often weigh against a company's growth trajectory. Shares are currently trading 10% below their 52-week high.
Public Since 2014
Arista Networks trades on the New York Stock Exchange under the ticker ANET. The company went public in June 2014, a decade after its founding, and has grown its workforce to approximately 5,115 employees as of the latest count.
The Bottom Line on the Numbers
Taken together, the figures describe a networking equipment company that has grown revenue nearly fourfold over five years while maintaining high profit margins, a sizable asset base, and a market valuation that places it among the larger names in computer hardware. This article is factual reporting drawn from public filings and market data, not investment advice.
