All Brands Owned by F5, Inc.

What does F5, Inc. do?

F5 sells application delivery and security products, including BIG-IP appliances and software, NGINX-based connectivity tools, and Distributed Cloud SaaS, that route, balance and protect application traffic for enterprises.

Who owns F5?

F5 is a public company listed on the Nasdaq under ticker FFIV. It is owned by institutional and public shareholders with no controlling parent, and it is a member of the S&P 500.

Is F5 the same as F5 Networks?

Yes. The company was founded as F5 Labs in 1996, renamed F5 Networks in 1999, and shortened to F5, Inc. in November 2021. The stock ticker FFIV is unchanged.

How much revenue does F5 make?

F5 reported $3.09 billion in revenue for fiscal 2025 ended September 30, 2025, with net income of $692 million.

Did F5 have a security breach?

F5 disclosed in October 2025 that a nation-state threat actor accessed internal systems and stole portions of BIG-IP source code and vulnerability data. The company issued emergency updates and worked with authorities on the response.

What is NGINX and does F5 own it?

NGINX is a widely used open source web server and reverse proxy. F5 acquired the company behind it in 2019 for $670 million and continues to maintain both the open source project and commercial NGINX products.