F5, INC.

F5, INC.

FFIVInfrastructure

F5 keeps applications running and secure, even when millions of people hit them at once.

Key figures

Data as of Mar 2026 · Pills compare vs Dec 2025
ARR Multiple
5.1x
+0.6x
ARR
$3.2B
+6.6%
YoY Growth
10.8%
-0.2pp
Market Cap
$16.4B
+13.1%
Revenue (Q)
$812M
+6.6%
Gross Margin
81.4%
+0.8pp
Op. Margin
22.1%
+5.9pp
Rule of 40
32.9
+5.7
Magic Number
0.89
+1.08

Revenue, margins & ratios from SEC filings; market cap & ARR multiple from market data.

AI Replacement Risk
9/ 100
LowHigh

Estimated likelihood that general-purpose AI replaces this product.

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Valuation by quarter

Current ARR Multiple: 6.8x

Calculated valuation

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Valuation data is not available for this company.

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Company overview

F5 keeps applications running and secure, even when millions of people hit them at once. The company was founded in 1996 in Seattle.

For most of its life F5 sold hardware. Its BIG-IP boxes sit in data centers and balance traffic across servers. If one server gets swamped, BIG-IP sends the next request somewhere else. Apps stay up. Users never notice the juggling act.

The world changed, and F5 changed with it. Apps moved to the cloud and split into many small services. So F5 pushed into software and subscriptions. NGINX, the popular open source web server it acquired, gave it a huge developer following. F5 Distributed Cloud extends its traffic and security smarts across clouds and edge locations.

Security now sits at the center of the story. F5 shields apps from attacks, blocks bad bots, and protects the APIs that modern software leans on. Think about a bank running its mobile app across three clouds. F5 can apply one set of security rules to all of them at once.

Revenue runs around $2.8 billion a year. Software and recurring revenue keep taking a larger share of the mix. F5 is a steady, profitable veteran that is slowly trading its hardware roots for a software future.

Entity information

Industry3576: Computer Communications Equipment
Fiscal YearSep 30
IncorporatedWashington
Phone(206) 272-5555
Address801 5TH AVENUE, SEATTLE, WA, 98104
Mailing address801 5TH AVENUE, SEATTLE, WA, 98104
EIN91-1714307
Entity typeoperating
SEC industry framework06 Technology
Former namesF5 NETWORKS, INC. (to 2021-11-12); F5 NETWORKS INC (to 2019-05-31)

Quarterly financials

Left axis in $ (Revenue, Gross profit, Net income, S&M); right axis for ratios (Rule of 40, Magic number). Click a legend item to toggle it.