EX-21.1 3 ffiv10kex2119302025.htm EX-21.1

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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.