Exhibit 21.1

EXHIBIT 21  -  TYCO INTERNATIONAL LTD.  -  28 SEPTEMBER 2012

COUNTRY	ENTITY NAME	STATE
Argentina	ADT Security Services S.A. (Argentina)
	Sensormatic Argentina S.A.
	Tyco Services S.A. (Argentina)
Australia	A.C.N. 000 343 019 Pty Limited
	ADT Wireless Pty Limited
	Complete Engineering Group Pty Ltd
	Fire Control Pty Limited
	P A Pacific Pty Limited
	Prindon Holdings Pty Limited
	Rindin Enterprises Pty Limited
	Sensormatic Australia Pty Limited
	Signature Holding Company Pty Limited
	Signature Security Group Holdings Pty Limited
	Signature Security Group Pty Limited
	Simplex International Pty Limited
	Tyco Australia Pty Limited
	Tyco Fire & Security Pty Limited
	Tyco International Pty Limited
	Tyco International Security Group Pty Limited
	Tyco Projects (Australia) Pty Limited
	Wormald and ADT Australia Pty Limited
Austria	ADT-Sensormatic Ges.m.b.H.
	Tyco Building Services Products (Austria) GmbH
	Tyco Fire & Integrated Solutions GmbH (Austria)
Bahamas	Tyco International Asia Inc. (Bahamas)
	Tyco Shares Ltd.
	World Services Inc.
Barbados	Exeter Holdings Limited
	Tyco Worldwide Holdings Ltd.
Belgium	CIPE Belgium S.A. (or NV)
	DSC International S.A.
	Tyco Fire & Integrated Solutions N.V.
	WHICH Belgium S.A.
Bermuda	Tyco Capital Holdings Ltd.
	Tyco Capital Ltd.

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COUNTRY	ENTITY NAME	STATE
Bermuda	Tyco Delta Limited
	Tyco Holdings (Bermuda) No. 12 Limited
	Tyco Holdings Limited
	Tyco International Middle East Limited
	Tyco Kappa Limited
	Tyco Omega Limited
	Willoughby Assurance Ltd.
Brazil	ADT Security Services do Brasil Ltda
	Alarm-Tek Comercio E Participacoes Ltda.
	Alarm-Tek do Brasil Sistemas de Vigilancia Ltda.
	Figgie do Brasil Industria e Comercio Ltda.
	Mojonnier do Brasil Industria e Comercio de Equipamentos Ltda.
	S.E.C. do Brasil Ltda.
	Senelbra Industria, Comercio e Servicos Ltda. (51%)
	Sensorbrasil Comercio e Locacoes Ltda.
	Sensormatic do Brasil Eletronica Ltda. (51%)
	Tyco Fire Protection Servicos do Brasil Ltda.
	Tyco Services Ltda.
Brunei Darussalam	Indeco Services Sdn Bhd
Bulgaria	Elpas Bulgaria EOOD
Canada	ADT Canada Holdings Limited
	ADT Finance Inc.
	Intercon Security Limited
	S E C Investments of Canada Ltd.
	SecurityLink Ltd.
	Sensormatic Canada Incorporated
	TEPG Canada Inc.
	Tyco Integrated Security Canada, Inc.
	Tyco International Canada Pool Corporation
	Tyco International of Canada Ltd.
	Tyco Safety Products Canada Ltd.
Cayman Islands	Sensormatic Cayman Finance Ltd.
Chile	ADT Security Services S.A. (Chile)
	Simplex S.A.
	Tyco Services S.A. (Chile)
China	ADT Macau Limited
	ADT Security Services Co., Ltd. (90%)
	ADT Security Systems (Shanghai) Co., Ltd. (90%)

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COUNTRY	ENTITY NAME	STATE
China	Ansul Fire Equipment (Shanghai) Co., Ltd
	Beijing Reliance Machinery and Electric Engineering Co., Ltd.
	Dalian Reliance Machinery and Electric Engineering Co., Ltd.
	Jilin Reliance Machinery and Electric Engineering Co., Ltd.
	Shanghai Eagle Safety Equipment Ltd.
	Shenyang Reliance Machinery and Electric Engineering Co., Ltd.
	Tyco Fire & Integrated Systems (Guangzhou) Co., Ltd.
	Tyco Fire & Security (Beijing) Co., Ltd.
	Tyco Fire & Security (Tianjin) Ltd
	Tyco Fire & Security Services International Trading (Shanghai) Co. Ltd
	Tyco Fire, Security & Services (Macau) Limited
	Tyco Flow Control Trading (Shanghai) Ltd.
	Tyco Safety Products (Shanghai) Co., Ltd.
	Xiamen Reliance Fire Service Co., Ltd.
	Xiamen Reliance Investment Management Co., Ltd.
	Xiamen Reliance Machinery and Electric Engineering Co., Ltd. (51%)
Colombia	Tyco Services S.A. (Colombia)
Costa Rica	ADT Security Services, S.A. (Costa Rica)
	Tyco Ingenieria y Construccion S.A.
Czech Republic	Feuerloschgerate Neuruppin CZ, s.r.o.
	Tyco Fire & Integrated Solutions s.r.o., clen koncernu Tyco
Denmark	Tyco Holding VIII (Denmark) ApS
	Tyco Integrated Systems (Denmark) ApS
	Water Holding (Denmark) ApS
Fiji	Tyco Fiji Limited
Finland	Scott Health & Safety Oy
	Scott Technologies Health & Safety Oy
France	Isogard SAS
	LPG France SAS
	Tyco Building Services Products S.A.S. (France)
	Tyco Europe S.A.
	Tyco Fire & Integrated Solutions France
	Tyco Safety Products France SARL
Germany	ADT Deutschland GmbH
	ADT Protecco GmbH
	ADT Secured Payments GmbH
	ADT Sensormatic GmbH

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COUNTRY	ENTITY NAME	STATE
Germany	ADT Service-Center GmbH
	CKS Security GmbH
	CKS Systeme GmbH & Co. KG
	COSMOS Feuerloeschgeraetebau GmbH
	Feuerloeschgeraete GmbH Neuruppin
	FLN Feuerloschgerate Neuruppin Vertriebs GmbH
	Fondermann GmbH
	Helmut Geissler Glasinstrumente GmbH
	Inter-Brandschutz GmbH
	NEUHAUS Feuerloschgerate GmbH
	Total Feuerschutz GmbH
	Total Walther Beteiligungsgesellschaft mbH
	Total Walther Feuerschutz Loschmittel GmbH
	Total Walther GmbH, Feuerschutz und Sicherheit
	Trade GmbH
	Tyco Building Services Products (Germany) GmbH
	Tyco Building Services Products Division GmbH
	Tyco Fire & Security Holding Germany GmbH
	Tyco Holding GmbH
	Tyco Second Holding GmbH
	Visonic Sicherheitstechnik GmbH
	WOPF Befestigungselemente GmbH
Gibraltar	Stralen Investments Limited
	Tyco International (Gibraltar) II Limited
	Tyco International (Gibraltar) IV Limited
Guatemala	ADT Sistemas de Seguridad, S.A. (Guatemala)
	Grinnell Sistemas de Proteccion Contra Incendio S.A. (Guatemala)
	Tyco Ingenieria y Construccion S.A. (Guatemala)
Hong Kong	ADT Hong Kong Limited
	ATS Technology (Hong Kong) Limited
	Sensormatic Far East Limited
	Sensormatic Hong Kong Limited
	Thorn Security (Hong Kong) Limited
	Tyco Engineering & Construction (Hong Kong) Limited
	Tyco Fire and Security Services China Limited
	Union Spirit Enterprises Limited
	Wormald Engineering Services Limited
Hungary	Tyco Building Services Products (Hungary) Kft
India	Sakhi-Raimondi Valves (India) Pvt Ltd (76.03)
	Tyco Fire & Security India Private Limited

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COUNTRY	ENTITY NAME	STATE
India	Tyco Safety Products (India) Private Limited
Ireland	ACE Alarm Systems Limited
	ADT Fire and Security Limited
	ADT Limited
	Brangate Limited
	Fondermann & Co. (Ireland) Limited
	Mather & Platt (Ireland) Limited
	Obsidian HCM Holdings Ireland
	Obsidian HCM Med Holdings Ireland
	Obsidian HCM Med International Holdings
	Plateau Automation Limited
	SEC Investments of Ireland
	Sensormatic Electronics Corporation (Ireland) Limited
	Sensormatic European Distribution Limited
	Sensormatic R&D Limited
	Tyco Far East Holdings Limited
	Tyco International Finance Ireland
	Tyco Ireland Limited
Ireland, Northern	Controlled Electronic Management Systems Limited
	Intellectual Systems Ltd.
Isle of Man	Obsidian HCM Med Isle of Man
Israel	Elpas Solutions Ltd.
	Visonetix Ltd.
	Visonic Ltd.
	Visonic Marketing (1988) Ltd.
	Visonic Solutions Ltd.
Italy	ADT Fire & Security Italia S.p.A.
	Bentel Security S.r.l.
	Sabo Foam Srl
	Tyco Building Services Products (Italy) S.r.l.
Luxembourg	ADT Finance S.A.
	ADT Luxembourg S.A.
	Tyco International Finance S.A.
	Tyco International Group S.A.
	Tyco International Holding S.a.r.l.
Malaysia	ADT Services (M) Sdn. Bhd.
	Life Engineering Sdn. Bhd.
	Tyco Fire, Security & Services Malaysia Sdn Bhd

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COUNTRY	ENTITY NAME	STATE
Malaysia	Tyco Flow Control (Malaysia) Sdn. Bhd.
	Tyco Grinnell KM Sdn. Bhd.
	Tyco Services Malaysia Sdn. Bhd.
Mauritius	Tyco Asia Investments Limited
Mexico	ADT Holding de Mexico, S.A. de C.V.
	ADT Integrated Solutions, S.A. de C.V.
	ADT Private Security Services de Mexico, S.A. de C.V.
	ADT Security Services, S.A. de C.V.
	Ansul Mexico, S.A. de C.V.
	S.L.K. Alarm Services, S.A. de C.V.
	Sensormatica, S. de R.L. de C.V.
	Simplex Grinnell, S.A. de C.V.
	Tyco Engineering & Construction, S.A. de C.V.
	Tyco International de Mexico, S. de R.L. de C.V.
	Tyco Services, S.A. de C.V. (Mexico)
Namibia	ADT Security Namibia (Proprietary) Limited
Netherlands	AIM Nederland B.V.
	Pritchard Services Group BV
	Protector Technologies BV
	Sensormatic B.V.
	Sensormatic Distribution & Holdings B.V.
	Sensormatic Investments Associates B.V.
	Tyco Building Services Products B.V.
	Tyco Fire & Security Nederland BV
New Zealand	Armourguard Security Limited
	Sensormatic New Zealand Limited
	Tyco New Zealand Limited
Norway	Tyco Building Services Products (Norway) AS
	Tyco Fire & Integrated Solutions (Norway) AS
Pakistan	Tyco Fire & Security Pakistan (PVT) Ltd.
Philippines	Tyco PIECO Corporation, Inc.
Poland	Visonic Sp.Zo.o. Ltd.
Portugal	L.P.G. Portugal - Sistemas de Proteccao Contra Incendios, Unipessoal, Lda.
	Sensormatic Proteccao Contra Furto, Lda
	Tyco Integrated Systems (Portugal), Unipessoal Lda

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COUNTRY	ENTITY NAME	STATE
Puerto Rico	SecurityLink of Puerto Rico, Inc.
	Sensormatic del Caribe, Inc. (Puerto Rico)
	Tyco Integrated Security Puerto Rico, Inc.
Russia	Limited Liability Company ADT Security Solutions
Scotland	WM Fire Protection Limited
Singapore	Central Spraysafe Company Pte Ltd
	TEPG Pte Ltd
	Tyco Building Services Pte. Ltd.
	Tyco Fire & Building Products Asia Pte. Ltd.
	Tyco Fire, Security & Services Pte. Ltd.
Slovak Republic	Tyco Fire & Integrated Solutions (Slovakia) s.r.o.
South Africa	ADT Kusela (Pty) Ltd (74%)
	ADT Security (Proprietary) Limited (South Africa)
	ADT Security Guarding (Proprietary) Limited
	Ansul South Africa (Proprietary) Limited
	Sentry Response (Pty) Ltd
	TM Monitoring (Pty) Ltd
South Korea	ADT Caps Co., Ltd.
	ADT Security Co., Ltd.
	Capstec Co., Ltd.
	Dong Bang Electronic Industrial Co. Ltd.
	Seaplus Co., Ltd.
	Tyco Fire & Security Services Korea Co., Ltd.
	Tyco Marine Services Korea Company Limited
Spain	ADT Espana Servicios de Seguridad, S.L.
	LPG Prevencion y Proteccion de Explosiones, S.L.
	LPG Tecnicas en Extincion de Incendios, S.L.
	Sensormatic Electronics Corporation S.A.
	Sensormatic Electronics Corporation Services SA
	Visonic Iberica de Seguridad, S.L.
	Wormald Mather & Platt Espana, S.A.
Sri Lanka	A&E Products Lanka (PVT) Ltd
Sweden	Svenska Skum International AB
	Tyco Building Services Products (Sweden) AB
Switzerland	ADT Services GmbH

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COUNTRY	ENTITY NAME	STATE
Switzerland	Swiss Alertis AG
	Tyco Fire & Integrated Solutions (Schweiz) AG
	Tyco Fire & Security AG
	Tyco International FH (Switzerland) GmbH
	Tyco International Finance Group GmbH
	Tyco International Finance Holding GmbH
	Tyco International Holding S.a.r.l., Luxembourg (LU), Schaffhausen Branch
	Tyco International Ltd.
	Tyco International Services Holding GmbH
	Tyco Italy (Switzerland) GmbH
	Tyco-ADT Security Services AG
Taiwan	ADT Security Services Ltd
	Shurjoint Piping Products, Inc.
	Shurjoint Taiwan, Inc.
	Tyco Fire, Security & Services Taiwan Limited
Thailand	ADT Sensormatic (Thailand) Co., Ltd.
	WHC Holdings Limited
Turkey	MCS Yangin Guvenlik Sistemleri Mumessillik ve Dis Ticaret Anonim Sirketi
United Kingdom	ACE Security (Derbys) Limited
	ADT (UK) Holdings PLC
	ADT (UK) Limited
	ADT Finance PLC
	ADT Fire and Security PLC
	ADT Group PLC
	ADT South Africa Holding Limited
	ADT Trustees Limited
	ADT UK Investments Limited
	American District Telegraph Services International Limited
	Atlas Fire Engineering Limited
	Audix Systems Limited
	Automated Loss Prevention Systems Limited
	Automated Security (Holdings) PLC
	Automated Security Limited
	Britannia Security Group Limited
	C.E. Security Systems Limited
	Central Spraysafe Company Limited
	Control Equipment Limited
	Farnham Limited
	Figgie (G.B.) Ltd.
	Figgie (U.K.) Limited
	Figgie Sportswear (U.K.) Limited

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COUNTRY	ENTITY NAME	STATE
United Kingdom	Figgie Sportswear Limited
	Garfield Security Systems Limited
	Grinnell (U.K.) Limited
	How Fire Limited
	JEL Building Management Limited
	Kean and Scott Limited
	Kingsclere Investments Ltd.
	LPG Fire Limited
	Macron Safety Systems (UK) Limited
	Modern Security Systems (Private Unlimited Company)
	Pritchard Services Group Investments Limited
	Protection One (UK) Limited
	Proximex Limited
	Scott Health & Safety Limited
	Sensormatic Commercial/Industrial Ltd.
	Sensormatic Finance Limited
	Sensormatic Investments Limited
	Sensormatic Limited
	Shearwater Solutions Limited
	Shepton Holdings Limited
	Spraysafe Automatic Sprinklers Limited
	Thorn Security Group Limited
	Thorn Security Limited
	Thorn Security Pension Trustees Limited
	Tyco Building Services Products (UK) Limited
	Tyco European Metal Framing Limited
	Tyco Fire & Integrated Solutions (UK) Limited
	Tyco Fire Products Manufacturing Limited
	Tyco Holdings (UK) Limited
	Tyco Integrated Systems Limited
	Visonic Limited
	Visonic Technologies UK Limited
	Wormald Holdings (U.K.) Ltd.
	Wormald Industrial Property Ltd.
United States	CEM Access Systems, Inc.	TX
	Central CPVC Corporation	AL
	Central Sprinkler LLC	DE
	Chagrin H.Q. Venture Ltd. (50%)	OH
	Chagrin Highlands Inc.	OH
	Chagrin Highlands Ltd. (50%)	OH
	Chemguard, Inc.	TX
	Citrine Pool LLC	NV
	Connect 24 Wireless Communications Inc.	DE
	CVG Holding Corp.	DE

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COUNTRY	ENTITY NAME	STATE
United States	Digital Security Controls, Inc.	NY
	Elpas, Inc.	DE
	Fire Products GP Holding, LLC	DE
	Grinnell LLC	DE
	Haz-Tank Fabricators, Inc.	TX
	Master Protection, LP	DE
	MCS Communication Products Inc.	CA
	Obsidian HCM Holdings, Inc.	DE
	Obsidian HCN International Corporation	DE
	Presidia (International) Insurance Company	VT
	Presidia (US) Insurance Company	VT
	Presidia Insurance Company	VT
	Proximex Corporation	DE
	Retail Expert, Inc.	DE
	Scott Technologies Foundation	OH
	Scott Technologies, Inc.	DE
	Senelco Iberia, Inc.	DE
	Sensormatic Asia/Pacific, Inc.	DE
	Sensormatic Electronics (Puerto Rico) LLC	DE
	Sensormatic Electronics, LLC	NV
	Sensormatic International, Inc.	DE
	Shurjoint America, Inc.	NV
	Simplex Time Recorder LLC	MA
	SimplexGrinnell Holdings LLC	DE
	SimplexGrinnell LP	DE
	STI Licensing Corporation	DE
	STI Properties, Inc.	DE
	STI Properties, Ltd.	OH
	STI Risk Management Co.	FL
	STR Grinnell GP Holding, LLC	NV
	Tyco Acquisition Corp. XXV (NV)	NV
	Tyco Finance Corp.	DE
	Tyco Fire & Security (US) Management, Inc.	NV
	Tyco Fire & Security LLC	NV
	Tyco Fire & Security US Holdings LLC	DE
	Tyco Fire Products LP	DE
	Tyco Fire Protection LLC	DE
	Tyco Holdings of Nevada, Inc.	NV
	Tyco Integrated Security LLC	DE
	Tyco International (US) International Holdings B, LLC	DE
	Tyco International Management Company, LLC	NV
	Tyco International PLT Holdings TAC, Inc.	NV
	Tyco International PLT Holdings, Inc.	DE
	Tyco International US China Inc.	DE
	Tyco Merger Sub (NJ) Inc.	NJ

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COUNTRY	ENTITY NAME	STATE
United States	Tyco Receivables Corp.	DE
	Tyco Worldwide Services, Inc.	DE
	Visonic Inc.	CT
	Water Holdings Corp.	DE
	White Mountain Group Holdings, Inc.	NV
	White Mountain Insurance Company	VT
	WillFire HC, LLC	DE
	Willoughby Holdings Inc.	DE
	Yarway Corporation	PA
Uruguay	ADT Security Services S.A. (Uruguay)
	Knogo Latin America S.A.
	LPG America Latina Sociedad Anonima
	Visonic S.A. [Uruguay]
	Visonic S.R.L.
Venezuela	Ansul de Venezuela C.A.
	Grinnell Sistemas de Proteccion Contra Incendio S.A. (Venezuela)
Vietnam	Tyco Engineering (Vietnam) Ltd.
Zambia	ADT Security Services Limited [Zambia]

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