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Exhibit 21.1

List of Subsidiaries of Allegion plc as of December 31, 2023
Subsidiary						Jurisdiction of Formation
AD Solutions, Inc.						United States
AG Management Limited						United Arab Emirates
Allegion (Australia) Pty Ltd.						Australia
Allegion (Hong Kong) Limited						Hong Kong
Allegion (Ireland) Finance Designated Activity Company						Ireland
Allegion (Malaysia) SDN. BHD.						Malaysia
Allegion (New Zealand) Limited						New Zealand
Allegion (Southeast Asia) Pte. Ltd.						Singapore
Allegion (Thailand) Limited						Thailand
Allegion (UK) Limited						United Kingdom
Allegion Access Technologies LLC						United States
Allegion B.V.						Netherlands
Allegion Canada Access Inc.						Canada
Allegion Canada Inc.						Canada
Allegion de Mexico, S. de R.L. de C.V.						Mexico
Allegion Denmark A/S						Denmark
Allegion Deutsche Holding GmbH						Germany
Allegion Digital Solutions LLC						United States
Allegion EMEA BV						Belgium
Allegion German Holding I GmbH						Germany
Allegion Hardware de Mexico, S. de R.L. de C.V.						Mexico
Allegion Immobilien GmbH						Germany
Allegion India Private Limited						India
Allegion International AG						Switzerland
Allegion Investments (Switzerland) AG						Switzerland
Allegion Investments (UK) Limited						United Kingdom
Allegion Investments Holding LLC						United States
Allegion Irish Holding Company IV Limited						Ireland
Allegion Irish Holding Company Limited						Ireland
Allegion Korea Inc.						Korea
Allegion LLC						United States
Allegion Lux Financing III S.à.r.l						Luxembourg
Allegion Luxembourg Holding and Financing S.à r.l.						Luxembourg
Allegion Management (DIFC) Limited						United Arab Emirates
Allegion Netherlands B.V.						Netherlands
Allegion NV						Belgium
Allegion Panama, S. de R.L.						Panama
Allegion S&S Lock Holding Company Inc.						United States
Allegion Security Technologies (CHINA) Co., LTD.						China
Allegion US Holding Company Inc.						United States
Allegion US Holding II LLC						United States
Allegion US Holding III Inc.						United States

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Exhibit 21.1

Allegion Ventures LLC						United States
AM Finance Holding Limited						Malta
AM Finance I Limited						Malta
AM Finance II Limited						Malta
API Services and Solutions Pty Limited						Australia
AXA Stenman Deutschland GmbH						Germany
AXA Stenman France S.A.S.						France
AXA Stenman Holding B.V.						Netherlands
AXA Stenman Poland Sp Z.O.O						Poland
Bricard S.A.S						France
Cisa Cerraduras S.A.						Spain
Cisa S.p.A.						Italy
Electronic Technologies Corporation USA						United States
Fire and Security Hardware Pty Limited						Australia
Gainsborough Hardware Industries Limited						Australia
Harrow Industries LLC						United States
Harrow Products (Delaware) LLC						United States
Harrow Products LLC						United States
Interflex Datensysteme Gesellschaft m.b.H.						Austria
Interflex Datensysteme GmbH						Germany
Isonas, Inc.						United States
Normbau France S.A.S.						France
Normbau GmbH						Germany
Overtur Architectural Services LLC						United States
Pin & Tumbler Studio LLC						United States
plano solutions gmbh						Germany
Recognition Systems LLC						United States
Republic Doors and Frames, LLC						United States
S&S Lock Indemnity (Barbados) Limited						Barbados
S&S Lock Insurance (Arizona) Company						United States
Schlage de Mexico S.A. de C.V.						Mexico
Schlage Lock Company LLC						United States
SimonsVoss Technologies AB						Sweden
SimonsVoss Technologies BV						Netherlands
SimonsVoss Technologies GmbH						Germany
SimonsVoss Technologies Limited						United Kingdom
SimonsVoss Technologies SAS						France
Technical Glass Products DMCC						United Arab Emirates
Technical Glass Products, Inc.						United States
TGP Canada Enterprises, ULC						Canada
TGP International, Inc.						United States
Trelock Asia Pacific Limited						Hong Kong
Trelock GmbH						Germany

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Exhibit 21.1

Yonomi, LLC						United States
Zero Seal Systems Limited						United Kingdom