EX-21.1 3 ffiv10kex2119302025.htm EX-21.1
Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT AS OF SEPTEMBER 30, 2025*

Name | Jurisdiction of Organization
F5 Networks Australia Pty Ltd. | Australia
FCINCO Representacoes Do Brasil LTDA | Brazil
F5 Networks Canada, Ltd. | Canada
F5 Networks China | China
Shape Security, Inc. | Delaware, U.S.A.
F5 Networks SARL (France) | France
F5 Networks GmbH (Germany) | Germany
F5 Networks Innovation Private Limited (SEZ) | India
F5 Networks Innovation Private Limited (non-SEZ) | India
F5 Networks India Private Limited | India
NGINX International Ltd. (Ireland) | Ireland
F5 Networks, (Israel) Ltd. | Israel
F5 Networks, Japan G.K. | Japan
F5 Networks Mexico S de RL de CV | Mexico
F5 Networks Poland sp z.o.o. | Poland
F5 Networks Singapore Pte Ltd | Singapore
F5 Networks Iberia S.L.U. (Spain) | Spain
F5 Networks (UK) Ltd | United Kingdom
F5 Government Solutions LLC | Virginia, U.S.A.
* All other subsidiaries would not in the aggregate constitute a “significant subsidiary” as defined in Regulation S-X.