Exhibit 21.1

EXHIBIT 21 - TYCO INTERNATIONAL LTD. - 25 SEPTEMBER 2009

Jurisdiction:	Entity Name	State
Argentina	ADT Security Services S.A. (Argentina)
	Maulo S.A.
	Sensormatic Argentina S.A.
	Tyco Flow Control Argentina S.A.
	Tyco Services S.A. (Argentina)
Australia	A.C.N. 000 233 536 Pty Limited
	A.C.N. 069 907 384 Pty Limited
	A.C.N. 095 652 645 Pty Limited
	ACN 000 343 019 Pty Limited
	ACN 065 576 721 Pty Limited
	ACN 083 263 076 Pty Limited
	ACN 095 629 191 Pty Limited
	ADT Wireless Pty Limited
	Coastline Foundry (Qld) Pty Limited
	Complete Engineering Group Pty Limited
	Danby Pty Limited
	Electrostrut Australia Pty Limited
	ETE Coliban Pty Limited
	Fire Control Pty Limited
	Firepipe Protection Pty Limited
	Firmagroup Operations Holdings Pty. Ltd.
	Gold Energy (Aust) Pty Limited
	Goyen Controls Co Pty Limited
	Greenspan Environmental Technology Pty Ltd
	Greenspan Technology Pty Ltd
	Kalanda Enterprises Pty Ltd
	Keystone Asia Pacific Pty Limited
	M.B. John Pty Limited
	Mather & Platt Pty Ltd
	Metropolitan Fire Services Pty Limited
	Metropolitan Fire Systems Pty Limited
	MFS Holdings Pty Limited
	Milperra Developments Pty Limited
	Nationguard Security Pty Limited
	P A Pacific Pty Limited
	Prindon Holdings Pty Limited
	Rindin Enterprises Pty Limited
	Sensormatic Australia Pty Limited
	Simplex International Pty Limited
	Steel Mains Pty Limited
	Super Nominees Pty Limited
	Swan Metal Skirtings Pty Limited

1

Jurisdiction:	Entity Name	State
	TISP Pty Limited
	TopAq Pty Limited
	Tyco Australia Pty Limited
	Tyco Fire & Security Pty Limited
	Tyco Flexonics Australia Pty Limited
	Tyco Flow Control International Pty Limited
	Tyco Flow Control Pacific Pty Limited
	Tyco International Pty Limited
	Tyco Projects (Australia) Pty Limited
	Tyco Water Pty Limited
	Unistrut (New Zealand) Holdings Pty Limited
	Unistrut Australia Pty Limited
	Viking Fire Systems Pty Limited
	Water Infrastructure Group (Queensland) Pty Ltd
	Water Infrastructure Group Pty Ltd
	Water Reticulation Systems (Virginia) Pty Limited
	Water Reticulation Systems Hire Pty Limited
	Yarway Australia Pty Limited
Austria	ADT-Sensormatic Ges.m.b.H
	Tyco Building Services Products (Austria) GmbH
	Tyco Fire & Integrated Solutions GmbH (Austria)
Bahamas	Tyco Global Exchange Inc.
	Tyco International Asia Inc. (Bahamas)
	Tyco Shares Ltd.
	World Services Inc.
Barbados	Exeter Holdings Limited
	Tyco International Holdings Ltd.
	Tyco Worldwide Holdings Ltd.
Belgium	ADT Europe N.V.
	Airvans Belgium S.A.
	CIPE Belgium S.A.
	DSC International S.A.
	Tyco Fire & Integrated Solutions N.V.
	Tyco Flow Control Europe S.A.
	Tyco Thermal Controls NV
	WHICH Belgium S.A.
Bermuda	Camron (Bermuda) Insurance, Ltd.
	Electro-Protective Limited

2

Jurisdiction:	Entity Name	State
	Kral Steel Limited
	Tyco (Bermuda) Unlimited No. 1
	Tyco Capital Holdings Ltd.
	Tyco Capital Ltd.
	Tyco Delta Limited
	Tyco Epsilon Limited
	Tyco Holdings (Bermuda) No. 12 Limited
	Tyco Holdings (Bermuda) No. 14 Limited
	Tyco Holdings Limited
	Tyco Kappa Limited
	Tyco Omega Limited
	Tyco Zeta
	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.
	Sensorbrasil Comercio e Locacoes Ltda.
	Sensormatic do Brasil Eletronica Ltda.
	Tyco Dinaco Industria e Comercio de Ferro e Aco Ltda.
	Tyco Fire & Security Equipamentos Ltda [Brazil]
	Tyco Services Ltda.
	Tyco Valves & Controls Brasil Ltda.
	Westlock Equipamentos de Controle Ltda.
Brunei Darussalam	Indeco Services Sdn Bhd
	Tyco Services (B) Sdn. Bhd.
Canada	ADT Canada Holdings Limited
	ADT Finance Inc.
	ADT Security Services Canada, Inc.
	Ansul Canada Limited
	Century Industries Company
	Columbia-MBF Inc.
	Hawley Group Canada Limited
	Intercon Security Limited
	Keystone Canada Co.
	Parkwood Security Systems Inc.
	S E C Investments of Canada Ltd.

3

Jurisdiction:	Entity Name	State
	SecurityLink Ltd.
	Sensormatic Canada Incorporated
	TEPG Canada Inc.
	Tracer Canada Incorporated
	Tracer Field Services Canada Ltd.
	Tracer Industries Canada Limited
	Tyco International of Canada Ltd.
	Tyco Safety Products Canada Ltd.
	Tyco Thermal Controls (Canada) Ltd.
	Tyco Thermal Controls Construction Corporation
	Tyco Valves & Controls Canada Inc.
	Unistrut Canada Limited
Cayman Islands	Sensormatic Cayman Finance Ltd.
	Sensormatic Cayman LP
Chile	ADT Security Services S.A. (Chile)
	ADT Seguridad Fisica S.A.
	Investim Chile S.A.
	Simplex S.A.
	Tyco Flow Control Chile S.A.
	Tyco Services S.A. (Chile)
	Unistrut Chile Comercial e Industrial Limitada
China	ADT Macau Limited
	ADT Security Services (Shanghai) Co., Ltd.
	Ansul Fire Equipment (Shanghai) Co. Ltd
	Deliver Safe Trading (Shanghai) Co., Ltd.
	Keystone Valve (China) Ltd.
	KTM Ball Valve Manufacturing (Sichuan) Co. Ltd.
	Shanghai Anderson Greenwood Crosby Valve Co. Ltd
	Shanghai Eagle Safety Equipment 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 Beijing Co., Ltd.
	Tyco Flow Control Trading (Shanghai) Ltd.
	Tyco Safety Products (Shanghai) Co., Ltd.
	Tyco Safety Products (Shenyang) Co., Ltd.
	Tyco Thermal Controls (Huzhou) Co. Ltd
	Tyco Thermal Controls (Shanghai) Engineering Co., Ltd.

4

Jurisdiction:	Entity Name	State
	Tyco Thermal Controls (Shanghai) Trading Co. Ltd
	Tyco Water Valve (Shanghai) Co., Ltd
Colombia	Mercantil de Importaciones y Exportaciones Ltda. (MINEX)
	Tyco Services S.A. (Colombia)
Costa Rica	ADT Security Services, S.A. (Costa Rica)
	Tyco Ingenieria y Construccion S.A.
Croatia	Tyco Fire & Integrated Solutions d.o.o. (Croatia)
Czech Republic	ADT Security Center, s.r.o.
	Feuerloschgerate Neuruppin CZ, s.r.o.
	Schmieding Armatury CZ s.r.o.
	Tyco Fire & Integrated Solutions s.r.o., clen koncernu Tyco
	Tyco Thermal Controls Czech s.r.o.
	Tyco Valves & Controls Distribution Czech s.r.o.
Denmark	ADT A/S
	CIPE Holding (Denmark) ApS
	Tyco Fire & Integrated Solutions (Denmark) A/S
	Tyco Holding I (Denmark) ApS
	Tyco Holding III (Denmark) ApS
	Tyco Holding IV (Denmark) ApS
	Tyco Holding IX (Denmark) ApS
	Tyco Holding VIII (Denmark) ApS
	Tyco Holding XI (Denmark) ApS
	Tyco Holding XIX (Denmark) ApS
	Tyco Integrated Systems (Denmark) ApS
	Tyco Valves & Controls Denmark A/S
	Water Holding (Denmark) ApS
Ecuador	Sociedad Anonima Grinnell Sistemas de Proteccion Contra Incendios
Fiji	Tyco Fiji Limited
Finland	Scott Health & Safety Oy
	Scott Technologies Health & Safety Oy
	Tyco Fire & Integrated Solutions (Finland) OY
	Tyco Thermal Controls Finland Oy
France	Acroba S.A.S
	ADT France SA

5

Jurisdiction:	Entity Name	State
	Bayard SAS
	CEDI Securite SA
	Conception et Representation de Technologie de Controle C.R.T. Controle
	Ecsas Gardiennage Sarl
	Europ Telesecurite SAS
	Europinter SA
	Fibaly SA
	Flow Control Technologies SA
	Generale de Robinetterie Industrielle et de Systemes de Surete (Griss) S.A.
	Isogard SAS
	K D Valves S.A.S
	MANIBS France S.A.R.L.
	Mecafrance S.A.
	Sci Becaro
	Sci Chanle
	Sci Mazal
	Sci Tov
	Securite Conseil Expertises - SCE
	Sensormatic S.A.R.L.
	T.S. France SA
	Tyco Building Services Products S.A.S. (France)
	Tyco Europe S.A.
	Tyco European Security Holdings SA
	Tyco Fire & Integrated Solutions France
	Tyco Flow Control Europe S.A.S.
	Tyco France Security S.A.
	Tyco Safety Products France SARL
	Tyco Thermal Controls SAS
	Tyco Valves & Controls Distribution (France) S.C.A.
Germany	ADT Deutschland GmbH
	ADT Protecco GmbH
	ADT Secured Payments GmbH
	ADT SecurePay GmbH
	ADT Security Deutschland GmbH
	ADT Sensormatic GmbH
	ADT Service-Center GmbH
	ADT Wellcom GmbH
	Chemat GmbH Armaturen fur Industrie - und Nuklearanlage
	CKS Security GmbH
	CKS Systeme GmbH & Co. KG
	COSMOS Feuerloeschgeraetebau GmbH
	DA Export International GmbH

6

Jurisdiction:	Entity Name	State
	Dritte Korschenbroicher Armaturen GmbH
	DSC International GmbH
	Erhard GmbH & Co. KG
	Erhard Verwaltungsgesellschaft mbH
	Erste Korschenbroicher Armaturen GmbH & Co. KG
	Erste Korschenbroicher Armaturen Verwaltungs GmbH
	Erwin Burbach Maschinenfabrik GmbH
	Feuerloschgerate GmbH Neuruppin
	FLN Feuerloschgerate Neuruppin Vertriebs GmbH
	Flow Control Holding GmbH & Co KG
	Flow Control Holding Verwaltungs GmbH
	Fondermann GmbH
	Frischhut Armaturen und Formteile GmbH
	Helmut Geissler Glasinstrumente GmbH
	Inter-Brandschutz GmbH
	Ludwig Frischhut Beteiligungs GmbH
	Ludwig Frischhut GmbH & Co. KG
	Mecafrance (Deutschland) GmbH
	NARVIK-Yarway GmbH
	NEUHAUS Feuerloschgerate GmbH
	S+S Armaturen Technology GmbH
	SABO-Armaturen Service GmbH
	Schmieding Armaturen GmbH
	Sempell AG
	STRATE Technologie fur Abwasser GmbH
	TEPG GmbH
	Thorn Sicherheits GmbH
	Tillmann Armaturen GmbH
	Total Feuerschutz GmbH
	Total Walther Beteiligungsgesellschaft Gmbh
	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 European Investments Deutschland GmbH
	Tyco Holding GmbH
	Tyco International Armaturen Holding GmbH
	Tyco International PLT Deutschland GmbH
	Tyco International PLT GmbH
	Tyco International PLT Klartechnik GmbH
	Tyco International PLT Umwelttechnik GmbH
	Tyco Thermal Controls GmbH

7

Jurisdiction:	Entity Name	State
	Tyco Thermal Controls Holding GmbH
	Tyco Umwelttechnik GmbH
	Tyco Valves & Controls Distribution GmbH
	Tyco Waterworks Deutschland GmbH
	Tyco Waterworks GmbH & Co. KG
	Vierte Korschenbroicher Armaturen GmbH & Co. KG
	Vierte Korschenbroicher Armaturen Verwaltungs GmbH
	WOPF Befestigungselemente GmbH
	Zweite Korschenbroicher Armaturen GmbH
Gibraltar	Espion (International) Limited
	Silver Avenue Holdings Limited
	Stralen Investments Limited
	Tyco International (Gibraltar) II Limited
	Tyco International (Gibraltar) III Limited
	Tyco International (Gibraltar) IV Limited
Greece	ADT Greece S.A. (ADT Hellas)
	Earth Tech (Hellas) Limited Liability Company
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
	Tak Cheong (Yau Kee) Engineering Limited
	Thorn Security (Hong Kong) Limited
	Tyco Engineering & Construction (Hong Kong) Limited
	Tyco Fire and Security Services China Limited
	Tyco Flow Control Hong Kong Limited
	Union Spirit Enterprises Limited
	Wormald Engineering Services Limited
Hungary	ADT Fire & Security Kft.
	Brueder Mannesmann Hungary Kft
	Tyco Building Services Products (Hungary) Kft
	Tyco Fire & Integrated Solutions Contractor and Engineering Limited Liability Company (kft)
	Tyco Valves & Controls Distribution Ltd
India	Sakhi-Raimondi Valves (India) Pvt Ltd

8

Jurisdiction:	Entity Name	State
	Simplex Building Systems Pvt Ltd
	Tyco Fire & Security India Private Limited
	Tyco Thermal Controls India Private Limited
	Tyco Valves & Controls India Pvt. Ltd.
Indonesia	PT Tyco Eurapipe Indonesia
	PT. ODG Wormald Indonesia
Ireland	ACE Alarm Systems Limited
	ADT Fire and Security Limited
	ADT Limited
	Allied Alarms Limited
	Allied Metal Products Limited
	Allied Security Products Limited
	Brangate Limited
	Fondermann & Co. (Ireland) Limited
	Imasco Public Limited Company
	Mather & Platt (Ireland) Limited
	Mather & Platt (Ireland) Manufacturing Limited
	Modern Security Systems Limited
	Mountainbran Limited
	Obsidian HCM Holdings Ireland
	Obsidian HCM Med Holdings Ireland
	Obsidian HCM Med International Holdings
	SEC Investments of Ireland
	Sensormatic Electronics Corporation (Ireland) Limited
	Sensormatic European Distribution Limited
	Sensormatic Ireland Limited
	Tyco Far East Holdings Limited
	Tyco International Finance Ireland
	Tyco Ireland Limited
	Tyco Valves and Controls Ireland Limited
	Unistrut Ireland Limited
	Waterson (Unlimited)
	Witham
Ireland, Northern	Audio Education Limited
	B & E Electrics Limited
	Castle Gate Alarms (Northern Ireland) Limited
	Controlled Electronics Management Systems Limited
	Flo-Check Valves Limited
	Intellectual Systems Ltd.
	Mid-Ulster Alarms Limited

9

Jurisdiction:	Entity Name	State
	P.M.H. Electronics Limited
	Security Centres (UK) Limited
Isle of Man	Automated Security (International) Limited
	Electra Systems Limited
	Modern Alarms Limited
	Modern Security Systems (IOM) Ltd.
	Obsidian HCM Med Isle of Man
	Security Centres Holdings International Ltd.
Israel	Raphael Valves Industries (1975) Ltd.
	Tyco Raphael Industries Ltd.
Italy	ADT S.r.l.
	Belgicast Italia S.R.L.
	Bentel Security Srl
	Biffi Italia S.r.l.
	Laesa Technology Srl
	MECAIR S.r.L.
	Sabo Foam Srl
	Tyco Building Services Products (Italy) S.r.l.
	Tyco Flow Control Italia, S.r.l.
	Tyco International PLT (Italy) S.r.l.
	Tyco Valves and Controls Italia S.r.l.
	Wormald Italiana S.P.A.
Japan	Tyco Flow Control Japan Co., Ltd.
	Tyco Thermal Controls Japan Co., Ltd.
Kazakhstan	Tyco Thermal Controls Kazakhstan LLP
Luxembourg	ADT Finance S.A.
	ADT Luxembourg S.A.
	CIPE Luxembourg S.A.
	Tyco Brazil (Luxembourg) S.a.r.l.
	Tyco Holdings S.a.r.l.
	Tyco International Finance S.A.
	Tyco International Group S.A.
	Tyco International Holding S.a.r.l.
	Tyco Luxembourg S.a.r.l.
Malaysia	ADT Services (M) Sdn. Bhd.
	Euratech (Malaysia) Sdn. Bhd.

10

Jurisdiction:	Entity Name	State
	Grinnell Supply Sales (Malaysia) Sdn. Bhd.
	Life Engineering Sdn. Bhd.
	Tyco Fire, Security & Services Malaysia Sdn Bhd
	Tyco Flow Control (Malaysia) Sdn. Bhd.
	Tyco Grinnell KM Sdn. Bhd.
	Tyco Services Malaysia Sdn. Bhd.
	Tyco Valves & Controls (M) 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.
	Fire Equipment de 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)
	Tyco Valves and Controls de Mexico, S.A. de C.V.
Namibia	ADT Security Namibia (Proprietary) Limited
Netherlands	AIM Nederland B.V.
	Glearth B.V.
	Hovap International (Holland) B.V.
	Narvik-Yarway B.V.
	Pritchard Services Group BV
	Professional Fixings BV
	Protector Technologies BV
	Sensormatic B.V.
	Sensormatic Distribution & Holdings B.V.
	Sensormatic Investments Associates B.V.
	Strate B.V.
	Svenska Skum B.V.
	Technische Handelsbureau en Armeturenfabriek Wafrega B.V.
	Tyco Building Services Products B.V.
	Tyco Energy Valves B.V.
	Tyco Fire & Security Nederland BV
	Tyco International Fire and Security Holdings Cooperatief U.A.

11

Jurisdiction:	Entity Name	State
	Tyco Thermal Controls BV
	Tyco Valves & Controls B.V.
	Tyco Waterworks B.V.
	Uni Joint B.V.
	Unistrut (Benelux) B.V.
New Zealand	Armourguard Security Limited
	Keystone New Zealand Company
	New Zealand Valve Company
	Nortrac Engineering Company
	Sensormatic New Zealand Limited
	Tyco Construction Technologies NZ Limited
	Tyco Flexonics NZ Company
	Unistrut New Zealand Company
Nicaragua	Grinnell Sistemas de Proteccion Contra Incendio S.A. (Nicaragua)
	Tyco Ingenieria y Construccion S.A. (Nicaragua)
Norway	Tyco Building Services Products (Norway) AS
	Tyco Fire & Integrated Solutions (Norway) AS
	Tyco Thermal Controls Norway AS
Pakistan	Tyco Fire & Security Pakistan (PVT) Ltd.
Peru	Tyco Services S.A. (Peru)
Philippines	Tyco Integrated Systems Philippines Inc.
	Tyco PIECO Corporation, Inc.
Poland	ADT Fire and Security SP.Z.O.O.
	Erhard Armatura Polska Sp. z o.o.
	Schmieding Armaturen Poland sp. z. o.o
	STRATE Sp.z.o.o.
	Tyco Thermal Controls Polska Sp. z.o.o.
	Tyco Valves & Controls Polska Sp.z.o.o.
	Tyco Waterworks Polska Sp.z.o.o.
Portugal	Industra — Comercio de equipamentos Industriais, S.A.
	Sensormatic Proteccao Contra Furto, Lda
	Tyco Integrated Systems (Portugal), Unipessoal Lda
Puerto Rico	ADT Security Services Puerto Rico, Inc.
	SecurityLink of Puerto Rico, Inc.

12

Jurisdiction:	Entity Name	State
	Sensormatic del Caribe, Inc. (Puerto Rico)
	Tyco Valves & Controls - Puerto Rico Corporation
Romania	Robinete Raf Campina, S.A.
	SC FCT Industrial Srl
Russia	Limited Liability Company ADT Security Solutions
	Tyco Thermal Controls [Russia]
Scotland	Keystone Valve (U.K.) Ltd.
	Modern Alarms (Scotland) Limited
	Prestaroy Limited
	Rhomax Engineering Limited
	Security Centres (Scotland) Limited
	Tyco Valves & Controls Distribution (UK) Limited
	WM Fire Protection Limited
Singapore	Central Spraysafe Company PTE Limited
	Greenspan Singapore Private Limited
	TEPG Pte Ltd
	Tyco Building Services Pte. Ltd.
	Tyco Fire & Building Products Asia Pte. Ltd.
	Tyco Fire, Security & Services Pte. Ltd.
	Tyco Flow Control Pte. Ltd.
	Tyco India (Singapore) Private Limited
	Tyco Pipe Systems Pte Ltd
Slovak Republic	Tatra Armatura s.r.o.
	Tyco Fire & Integrated Solutions (Slovakia) s.r.o.
South Africa	ADT Security (Proprietary) Ltd (South Africa)
	ADT Security Guarding (Proprietary) Limited
	Ansul South Africa (Proprietary) Limited
	Belgicast (PTY) Ltd.
	Kusela Security Solutions (Proprietary) Limited
	Sentry Response (Pty) Ltd
	TM Monitoring (Pty) Ltd
	Tyco Valves and Controls Distribution SA (Proprietary) Limited
	Tyco Waterworks (Pty) Ltd.
South Korea	ADT Caps Co., Ltd.
	ADT Security Co., Ltd.
	Capstec Co., Ltd.

13

Jurisdiction:	Entity Name	State
	Dong Bang Electronic Industrial Co. Ltd.
	Keystone Valve (Korea) Limited
	Tyco Marine Services Korea Company Limited
	Tyco Thermal Controls Korea Ltd.
Spain	ADT Espana Servicios de Seguridad, S.L.
	Belgicast Internacional S.L.
	Sensormatic Electronics Corporation S.A.
	Sensormatic Electronics Corporation Services SA
	Wormald Mather & Platt Espana, S.A.
Sri Lanka	A&E Products Lanka (PVT) Ltd
Sweden	ADT Sweden AB
	Erichs Armatur AB
	Svenska Skum International AB
	Svenska Skumslacknings AB
	Tyco Building Services Products (Sweden) AB
	Tyco Fire & Integrated Solutions (Sweden) AB
	Tyco Thermal Controls Nordic AB
Switzerland	ADT Services AG
	Neotecha AG
	Swiss Alertis AG
	Tyco China (Switzerland) GmbH
	Tyco Fire & Integrated Solutions (Schweiz) AG
	Tyco Flow Services 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
Taiwan	ADT Security Services Ltd
	Taiwan Valve Co., Ltd
	Tyco Fire, Security & Services Taiwan Ltd
	Tyco Valves & Controls (Taiwan) Limited
Thailand	ADT Sensormatic (Thailand) Co., Ltd.
	Indeco Services Co., Limited
	Tyco Fire, Security & Services (Thailand) Limited

14

Jurisdiction:	Entity Name	State
	Tyco International PLT (Thailand) Limited
	Tyco International PLT Engineering (Thailand) Limited
	Tyco Valves & Controls (Thailand) Limited
	WHC Holdings Limited
	Windmill Street Limited
Turkey	Kaiser Muhendislik ve Musavirlik A.S.
	Tyco International PLT Engineering Construction Trade
UAE	Tyco Flow Control Middle East FZE
United Kingdom	A.G. Marvac Limited
	ACE Security (Derbys) Limited
	ADT (Private Unlimited Company)
	ADT (UK) Holdings PLC
	ADT (UK) Limited
	ADT Aviation Limited
	ADT Finance PLC
	ADT Fire and Security PLC
	ADT Group PLC
	ADT Linen Services Limited
	ADT Pension Fund Limited
	ADT Security Systems Limited
	ADT Travel Group Limited
	ADT Trustees Limited
	ADT UK Investments Limited
	Advanced Independent Monitoring Limited
	AFA-MINERVA Limited
	American District Telegraph Services International Limited
	Argus Group Limited
	Atlantic Plastics Limited
	Atlas Fire Engineering Limited
	Audix Systems Limited
	Automated Loss Prevention Systems International Limited
	Automated Loss Prevention Systems Limited
	Automated Security (Holdings) PLC
	Automated Security (Properties) Ltd.
	Automated Security Information Systems Technology Limited
	Automated Security Limited
	Avalon Emergency Systems Limited
	Bond Security Services Limited
	Bond Security Systems Limited
	Britannia Monitoring Services Limited

15

Jurisdiction:	Entity Name	State
	Britannia Security Group Limited
	Britannia Security Systems (Midlands) Limited
	Britannia Security Systems Limited
	C.C.T.V. Limited
	C.E. Security Systems Limited
	C.I.S. (Cast Iron Services) Limited
	Capitol Alarms Limited
	Central Spraysafe Company Limited
	Charles Winn (Valves) Limited
	Cheshire Alarm Services Ltd.
	Cleaners Limited
	Clen Group Limited
	Coin Machine Sales Limited
	Collmain Limited
	Collmain Services Limited
	Control Equipment Limited
	Countrywide Leisure Holdings Limited
	Crime Seen Ltd.
	Crosby Valve and Engineering Company Limited
	D J Security Alarms Limited
	Debro Engineering and Presswork Limited
	Edward Barber & Company Limited
	Edward Barber (U.K.) Limited
	Erhard Valves Limited
	Ever Three Limited
	Excelsior Security Services Limited
	Farnham Limited
	Figgie (G.B.) Ltd.
	Figgie (U.K.) Limited
	Figgie Investment Trustee Limited
	Figgie Pension Trustee Limited
	Figgie Sportswear (U.K.) Limited
	Figgie Sportswear Limited
	Fire Defender (U.K.) Limited
	Fire Safety Inspection Company Limited
	Galequest (Electronics) Limited
	Garfield Security Systems Limited
	General Cleaning Contractors Limited
	Goyen Controls Co UK Limited
	Grinnell (U.K.) Limited
	Group Sonitrol Security Systems Limited
	Hawley International Finance Limited
	Hindle Cockburns Limited

16

Jurisdiction:	Entity Name	State
	How Fire Limited
	How Fire Maintenance Limited
	Hygood Limited
	J W Singer & Sons Limited
	Jades Doors Limited
	James Deacon Security Limited
	JEL Building Management Limited
	JEL Building Management Systems Limited
	Kean and Scott Limited
	Kingsclere Investments Ltd.
	Knogo UK Limited
	KS Lift Services Limited
	Macron Safety Systems (UK) Limited
	Maidstone Fire Protection Limited
	Management and Control Systems Limited
	Masco Holdings Limited
	Masco Security Systems Limited
	Mather & Platt Alarms Limited
	Minerva Fire Defence Limited
	Modern Automatic Alarms Limited
	Modern Security Systems (Private Unlimited Company)
	Motor Auctions Group Limited, The
	Mountwest 81 Limited
	Narvik-Yarway Limited
	Nu-Tron Security Limited
	OCYT 1 Limited
	OCYT 10 Limited
	OCYT 11 Limited
	OCYT 2 Limited
	OCYT 3 Limited
	OCYT 4 Limited
	OCYT 5 Limited
	OCYT 6 Limited
	OCYT 7 Limited
	OCYT 8 Limited
	OCYT 9 Limited
	OMK Limited
	Orbis Security Systems Limited
	Pipework Fabrications Limited
	Pritchard Services Group Investments Limited
	Progressive Securities Investment Trust Limited
	Prospect House Investments Limited
	Protection One (UK) Limited

17

Jurisdiction:	Entity Name	State
	Protector Technologies Limited
	Raychem HTS Limited
	S L S Engineering Limited
	Sabre Supply Management Limited
	Safety Systems UK Limited
	Saffire Alarm Systems Limited
	Saffire Extinguishers Limited
	Samuel Booth & Company Limited
	Scott Health & Safety Limited
	Securitag International Limited
	Security Centres (UK) Holdings Limited
	Security Centres Holdings Limited
	Security Centres Investments Limited
	Security Surveyors Group Limited
	Sensormatic (U.K.) Limited
	Sensormatic Camera Limited
	Sensormatic Commercial/Industrial Ltd.
	Sensormatic Finance Limited
	Sensormatic International Limited
	Sensormatic Investments Limited
	Sensormatic Limited
	Sensormatic Security Solutions Limited
	Shearwater Solutions Limited
	Shepton Holdings Limited
	Shield Protection Limited
	Show Contracts Limited
	Simplex Europe Limited
	Sky Signs Limited
	Sonitrol Limited
	Sound & Vision Technologies Limited
	Spector Lumenex Limited
	Spensall Engineering Limited
	Splendour Cleaning Services Limited
	Spraysafe Automatic Sprinklers Limited
	Steel Support Systems Limited
	Steeplock Limited
	Strate (UK) Limited
	Stretford Security Services Limited
	Surveillance and Fire Equipment Limited
	Telecom Security Limited
	Telesurveillance Limited
	Ten Acre Securities Ltd.
	Thorn Security Group Limited

18

Jurisdiction:	Entity Name	State
	Thorn Security International Limited
	Thorn Security Limited
	Thorn Security Pension Trustees Limited
	Tomorrows Telecom Limited
	Total Lift Services Limited
	Triangle Controls Ltd.
	TSG Trustees Limited
	Tyco Building Services Products (UK) Limited
	Tyco Engineered Products (UK) Ltd
	Tyco Engineering Services Limited
	Tyco European Metal Framing Limited
	Tyco European Steel Strip Limited
	Tyco European Tubing Limited
	Tyco Fire & Integrated Solutions (UK) Limited
	Tyco Fire Products Manufacturing Limited
	Tyco Fire Systems Limited
	Tyco Flow Control (UK) Limited
	Tyco Holdings (UK) Limited
	Tyco Integrated Systems Limited
	Tyco Thermal Controls UK Limited
	Tyco Tubing Limited
	Tyco Valves & Controls Gulf Limited
	Tyco Valves Limited
	Ultra Security Alarms Limited
	Unifast Systems Limited
	Unirax Limited
	Unistrut Europe Limited
	Unistrut Holdings Limited
	Unistrut Limited
	VTI Global Limited
	Vital Communications International Ltd.
	Westlock Controls Limited
	Whessoe Vapour Control Ltd
	Whessoe Varec Company, The
	White Group Electronics Limited
	Wormald Fire Systems Limited
	Wormald Holdings (U.K.) Ltd.
	Wormald Industrial Property Ltd.
	Zettler Limited
United States	Activation Technologies, LLC	DE
	ADT Holdings, Inc.	DE
	ADT Investments II, Inc.	DE

19

Jurisdiction:	Entity Name	State
	ADT Investments, Inc.	DE
	ADT Maintenance Services, Inc.	DE
	ADT Security Services, Inc.	DE
	ADT Security Systems, West, Inc	DE
	ADT Title Holding Company I	DE
	ADT Title Holding Company II	DE
	AFC Cable Systems, Inc.	DE
	Alert Centre (Name Saver / Assumed Name Corp)	IL
	Alliance Integrated Systems, Inc.	DE
	Allied Tube & Conduit Corporation	DE
	Ansul, LLC	DE
	API Security, Inc.	DE
	Arrowsmith Limited Partnership	MA
	Automated Security Corp.	DE
	Automated Security Holdings, Inc.	DE
	CCTC International, Inc.	DE
	CEM Access Systems, Inc.	TX
	Central Castings Corporation	AL
	Central CPVC Corporation	AL
	Central Sprinkler Company	PA
	Central Sprinkler Holdings, Inc.	DE
	Chagrin H.Q. Venture Ltd.	OH
	Chagrin Highlands Inc.	OH
	Chagrin Highlands Ltd.	OH
	Citrine Pool Corp.	NV
	Connect 24 Wireless Communications Inc.	DE
	Crosby Valve, LLC	NV
	CVG Holding Corp.	DE
	D.A.S. International, Ltd.	WI
	Descote, Inc.	LA
	Digital Security Controls, Inc.	NY
	Domestic Alarm, Inc.	CA
	Electro Signal Lab, Inc.	DE
	FCI Liquidations, Inc.	DE
	Figgie Leasing Corporation	DE
	Fire Products GP Holding, LLC	DE
	Georgia Pipe Company	GA
	Glynwed Holdings, Inc.	DE
	Goodrich Westminster Limited Partnership	MA
	Goyen Valve Corporation	CA
	Grinnell LLC	DE
	IMB, A Simplex Company, L.L.C.	DE
	International Financing, Inc.	DE

20

Jurisdiction:	Entity Name	State
	J.R. Clarkson Company, The	NV
	Keystone France Holdings Corp.	DE
	Keystone Germany Holdings Corp.	DE
	Keystone Kuwait, Inc.	DE
	Keystone Saudi, Inc.	TX
	Master Protection, LLC	DE
	MCS Communication Products Inc.	CA
	Obsidian HCM Holdings, Inc.	DE
	Obsidian HCN International Corporation	DE
	Paul Scott Security Systems, Inc.	NJ
	Paul Scott Security Systems, LLC	NJ
	Raychem International Holdings, LLC	DE
	Retail Expert, Inc. [FKA Tyco Acquisition Corp. XXI]	DE
	RI Corporation	DE
	S2 Mergersub Inc.	NJ
	Safe Link Corporation	MN
	Sakertrax, Inc.	CA
	Scott Technologies Foundation	OH
	Scott Technologies, Inc.	DE
	Senelco Iberia, Inc.	DE
	Sensormatic Asia/Pacific, Inc.	DE
	Sensormatic Distribution, Inc.	DE
	Sensormatic Electronics, LLC	NV
	Sensormatic Electronics Corporation (Puerto Rico)	DE
	Sensormatic Holding Corporation	NV
	Sensormatic International Holdings I, Inc.	DE
	Sensormatic International Holdings II, Inc.	DE
	Sensormatic International, Inc.	DE
	Sensormatic Technology, Inc.	FL
	Simplex Asia I, Inc.	DE
	Simplex Thailand, L.L.C.	DE
	Simplex Time Recorder Co.	MA
	SimplexGrinnell Holdings, Inc.	DE
	SimplexGrinnell LP	DE
	Smith Alarm Systems, Inc.	TX
	STI Licensing Corporation	DE
	STI Properties, Inc.	DE
	STI Properties, Ltd.	OH
	STI Risk Management Co.	FL
	STR Grinnell GP Holding, LLC	NV
	STR Realty Holdings LLC	DE
	Telestate International, Inc.	DE
	TKN, Inc.	RI

21

Jurisdiction:	Entity Name	State
	Tracer Construction Company	DE
	Tracer Field Services, Inc.	DE
	Tracer Industries Finance Co., Inc.	DE
	Tracer Industries Holdings, Inc.	DE
	Tracer Industries International, Inc.	TX
	Tracer Industries Management Co., Inc.	DE
	Tracer Industries, Inc.	DE
	Tracer Licensing, L.P.	DE
	Tri-Systems, Inc.	DE
	TV&C GP Holding, LLC	NV
	Tyco Acquisition Corp. XXII (NV)	NV
	Tyco Acquisition Corp. XXV (NV)	NV
	Tyco Acquisition Epsilon LLC	NV
	Tyco Acquisition Gamma LLC	NV
	Tyco Capital Investments, Inc.	NV
	Tyco Finance Corp.	DE
	Tyco Fire & Security LLC	NV
	Tyco Fire Products LP	DE
	Tyco Flow Control Company LLC	DE
	Tyco Flow Control International Holdings A, LLC	DE
	Tyco Flow Control International Holdings B, LLC	DE
	Tyco Flow Control International Holdings C, LLC	DE
	Tyco Holdings of Nevada, Inc.	NV
	Tyco International (NV) Inc.	NV
	Tyco International (US) International Holdings B, LLC	DE
	Tyco International Asia, Inc.	DE
	Tyco International CTC, Inc.	AK
	Tyco International Management Company	NV
	Tyco International PLT, Inc.	DE
	Tyco International PLT Holdings, Inc.	DE
	Tyco International PLT Holdings TAC, Inc.	NV
	Tyco International US China Inc.	DE
	Tyco Merger Sub (NJ) Inc.	NJ
	Tyco Receivables Corp.	DE
	Tyco Safety Products (US), LLC	NV
	Tyco Safety Products US, Inc.	NV
	Tyco Thermal Controls LLC	DE
	Tyco Valves & Controls LP	DE
	Tyco Valves & Controls, Inc.	TX
	Tyco Valves and Controls Middle East, Inc.	DE
	Tyco Valves and Controls U.A.E., Inc.	TX
	Tyco Water Corp.	TX
	Tyco Worldwide Services, Inc.	DE

22

Jurisdiction:	Entity Name	State
	Unistrut International Corporation	NV
	Unistrut International Holdings B, LLC	DE
	Unistrut International Holdings, LLC	DE
	United States Construction Co.	DE
	Water Holdings Corp.	DE
	Westec Business Security, Inc.	DE
	Westlock Controls Corporation	DE
	Westlock Controls Holdings, Inc.	NV
	White Mountain Insurance Company	VT
	Willoughby Holdings Inc.	DE
	WPFY, Inc.	DE
	Yarway Corporation	PA
Uruguay	ADT Security Services S.A. (Uruguay)
	Knogo Latin America S.A.
	Tyco Flow Control del Uruguay S.A.
Venezuela	Ansul de Venezuela C.A.
	Earth Tech Venezuela, C.A.
	Grinnell Sistemas de Proteccion Contra Incendio S.A. (Venezuela)
	Tyco Flow Control de Venezuela, C.A.
Vietnam	Tyco Engineering (Vietnam) Ltd.

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