Arista Networks vs Cisco Systems: revenue, profit, margins and growth compared
Arista Networks brought in $9B of revenue in fiscal 2025, Cisco Systems $63.3B in fiscal 2026. Revenue changed by +28.6% at Arista Networks and +11.8% at Cisco Systems on the year before, so Arista Networks grew faster. Arista Networks kept 39.0% of its revenue as net profit, Cisco Systems 21.0%. Free cash flow was $4.3B at Arista Networks and $12.8B at Cisco Systems.
Fiscal years as each company reports them; the two may end in different months.
Questions about Arista Networks and Cisco Systems
Which is bigger by revenue, Arista Networks or Cisco Systems?
Cisco Systems is bigger by revenue: $63.3B in fiscal 2026, against $9B for Arista Networks in fiscal 2025.
Which keeps more of its revenue as profit, Arista Networks or Cisco Systems?
Arista Networks had a net margin of 39.0% in fiscal 2025; Cisco Systems had 21.0% in fiscal 2026.
Which grew revenue faster, Arista Networks or Cisco Systems?
In their latest fiscal years revenue changed by +28.6% at Arista Networks and +11.8% at Cisco Systems.
Where do these numbers come from?
From the annual reports each company files with the SEC (10-K, or 20-F and 40-F for foreign companies), read from their XBRL data. Margins and growth are simple arithmetic on those figures. Nothing here is a recommendation.