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Exhibit 21

nVent Electric plc subsidiaries as of December 31, 2023

Name of Company						Jurisdiction of Incorporation
Alberta Electronic Company Limited						Hong Kong
Asia Pacific CIS (Thailand) Co., Ltd.						Thailand
Asia Pacific CIS (Wuxi) Co., Ltd.						China
Bergen Industries, LLC						United States
BESM Holdings, LLC						United States
CIS Global LLC						United States
CIS Holding Corp.						United States
CIS Hong Kong Limited						Hong Kong
CISWW Engineering India Private Limited						India
ECM (Shanghai) Trading Co., Ltd.						China
ECM Holdings Inc.						United States
ECM Holdings, LLC						United States
ECM Industries, LLC						United States
ECM Investors, LLC						United States
Eldon AB						Sweden
Eldon AS						Norway
Eldon Austria GmbH						Austria
Eldon Electric Limited						United Kingdom
Eldon Espana, S.A.U.						Spain
Eldon GmbH						Germany
Eldon Holding AB						Sweden
Eldon NV						Netherlands
Eldon SRL						Romania
Electronic Enclosures, LLC						United States
Enclosures, Inc.						United States
ERICO Canada Inc.						Canada
ERICO do Brasil Ltda.						Brazil
ERICO Europe B.V.						Netherlands
ERICO France Sarl						France
ERICO GLOBAL COMPANY						United States
ERICO International Corporation						United States
ERICO Italia S.r.l.						Italy
ERICO Limited						Hong Kong
ERICO Ltd.						China
ERICO Mexico, S.A. de C.V.						Mexico
ERICO Poland SP. Z.o.o.						Poland
ERICO Products Australia Pty. Ltd						Australia
ERICO US Holding LLC						United States
Everest Blocker Holding, Inc.						United States
FTZ Holdco LLC						United States
GCP CIS Blocker Inc.						United States
GCP CIS Holdings, LLC						United States
Hoffman Enclosures (Mex.), LLC						United States
Hoffman Enclosures Mexico, S. de R.L. de C.V.						Mexico
Hoffman Enclosures Inc.						United States
Hoffman Schroff Asia Pte Ltd						Singapore
Hoffman Schroff de Mexico S.a.r.l.						Mexico
Hoffman Schroff GmbH						Switzerland
Hoffman Schroff Holdings, Inc.						United States
Hoffman Schroff Manufacturing S. de R.L. de C.V.						Mexico

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Hoffman Schroff Poland Sp.z.o.o.						Poland
Hoffman Schroff PTE Ltd						Singapore
Hoffman Schroff Sales S. de R.L. de C.V.						Mexico
Iceotope Group Limited*						Canada
Ilsco Canada Newco ULC						Canada
ILSCO de Mexico, S. de R.L. de C.V.						Mexico
ILSCO Extrusions, LLC						United States
ILSCO International, LLC						United States
ILSCO, LLC						United States
King Technology of Missouri, LLC						United States
Limited Liability Company nVent Rus						Russian Federation
Lionel Acquisition Co.						United States
nVent Armaturen Holding GmbH						Germany
nVent do Brasil Eletrometalurgica Ltda.						Brazil
nVent EFS Investments 1, LLC						United States
nVent EFS Investments 2, LLC						United States
nVent EFS Investments LP						United States
nVent Electrical Products (Shanghai) Co., Ltd.						China
nVent Electrical Products China Co., Ltd.						China
nVent Electrical Products India Private Limited						India
nVent Enclosures India Private Limited						India
nVent Enclosures Italia Srl						Italy
nVent Finance Group GmbH						Switzerland
nVent Finance NL B.V.						Netherlands
nVent Finance S.a.r.l.						Luxembourg
nVent Finland Oy						Finland
nVent Global S.a.r.l.						Luxembourg
nVent Holding NL B.V.						Netherlands
nVent Holdings C.V.						Netherlands
nVent Holdings S.A.						France
nVent Holdings, Inc.						United States
nVent International (UK) Ltd.						United Kingdom
nVent International Holding S.a.r.l.						Luxembourg
nVent International Holdings, Inc.						United States
nVent Investments 1, LLC						United States
nVent Investments 2, LLC						United States
nVent Investments LP						United States
nVent Italy S.r.l.						Italy
nVent Japan Co., Ltd.						Japan
nVent Luxembourg S.a.r.l.						Luxembourg
nVent Management Company						United States
nVent Middle East FZE						United Arab Emirates
nVent Nordic AB						Sweden
nVent Power & Data Infrastructure India Private Limited						India
nVent Project Services Canada, Inc.						Canada
nVent Services Canada Limited						Canada
nVent Services GmbH						Switzerland
nVent Services Holding GmbH						Switzerland
nVent Solutions (UK) Limited						United Kingdom
nVent Teknoloji Sistemleri Ticaret Limited Sirketi						Turkey
nVent Thermal (Shanghai) Co., Ltd.						China
nVent Thermal (Shanghai) Engineering Co., Ltd.						China
nVent Thermal (Suzhou) Co., Ltd.						China
nVent Thermal Belgium NV						Belgium
nVent Thermal Canada Ltd.						Canada

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nVent Thermal Europe GmbH						Switzerland
nVent Thermal France SAS						France
nVent Thermal Germany GmbH						Germany
nVent Thermal India Private Limited						India
nVent Thermal Korea Ltd.						Korea, Republic of
nVent Thermal KZ LLP						Kazakhstan
nVent Thermal LLC						United States
nVent Thermal Netherlands B.V.						Netherlands
nVent Thermal Norway AS						Norway
nVent Thermal Polska Sp. z.o.o.						Poland
nVent Thermal Romania S.R.L.						Romania
nVent UK Holdings Limited						United Kingdom
PP Canada Inc.						Canada
Productos ERICO S.A.						Spain
Schroff Co. Ltd. Taiwan						Taiwan
Schroff GmbH						Germany
Schroff Holdings Germany GmbH						Germany
Schroff SAS						France
Schroff, Inc.						United States
Steinhauer GmbH						Germany
Surge Suppression, LLC						United States
Texa Industries S.r.l.						Italy
The Patent Store, LLC						United States
Tonka Bay Insurance Company						United States
Torgoterm AD*						Bulgaria
Tracer Construction LLC						United States
Tracer Industries Canada Limited						Canada
Tracer Industries Management LLC						United States
Tracer Industries, Inc.						United States
Yabaida Electronics (Shenzhen) Company Limited						China

All entities are 100% owned subsidiaries, unless otherwise indicated.

* Iceotope is 6.2% owned. Torgoterm AD is 19% owned.