EXHIBIT (21)

Registrant

ECOLAB INC.

Name of Affiliate	State or OtherJurisdiction ofIncorporation	Percentage of Ownership
Ecolab (Antigua) Ltd.	Antigua	100
Ecolab S.A.	Argentina	100
Ecolab (Aruba) NV	Aruba	100
Ecolab Australia Pty Ltd.	Australia	100
Eagle Environmental Systems Pty Limited	Australia	100
Ecolab Pty Ltd.	Australia	100
Ecolab Water Care Services Pty Limited	Australia	100
Gibson Chemical Industries Pty Ltd.	Australia	100
Gibson Chemicals Fiji Pty Limited	Australia	100
Ecolab AT 2 GmbH	Austria	100
Ecolab GmbH	Austria	100
Ecolab Limited	Bahamas	100
Ecolab (Barbados) Limited	Barbados	100
Ecolab B.V.B.A./S.P.R.L.	Belgium	100
Ecolab Production Belgium BVBA	Belgium	100
Kay N.V.	Belgium	100
Ecolab BM 1 Limited	Bermuda	100
Ecolab BM 2 Limited	Bermuda	100
Ecolab Quimica Ltda.	Brazil	100
Ecolab EOOD	Bulgaria	100
Ecolab Co.	Canada	100
Arlington International Limited	Cayman Islands	100
Mystique Management Limited	Cayman Islands	100

Name of Affiliate	State or OtherJurisdiction ofIncorporation	Percentage of Ownership
Ecolab S.A.	Chile	100
Ecolab Colombia S.A.	Colombia	100
Ecolab, Sociedad Anonima	Costa Rica	100
Ecolab d.o.o.	Croatia	100
Ecolab Holding (Cyprus) Limited	Cyprus	100
Ecolab Hygiene s.r.o.	Czech Republic	100
Ecolab ApS	Denmark	100
Ecolab Holding Denmark ApS	Denmark	100
Microtek Dominicana S.A.	Dominican Republic	100
Ecolab Ecuador CIA. LTDA.	Ecuador	100
Ecolab, S.A. de C.V.	El Salvador	100
Oy Ecolab AB	Finland	100
Alpha Holding SAS	France	100
Amboile Services SAS	France	100
Amperia SARL	France	100
Centre Régional de Désinfectisation et de Dératisation SAS	France	100
Ecolab SAS	France	100
Ecolab Production France SAS	France	100
Ecolab SNC	France	100
Eurobiopsy SA	France	100
Europlak SAS	France	100
SCI Erebia	France	100
Shield Medicare sarl	France	100
Ecolab Deutschland GmbH	Germany	100
Ecolab Engineering GmbH	Germany	100

Name of Affiliate	State or OtherJurisdiction ofIncorporation	Percentage of Ownership
Ecolab Export GmbH	Germany	100
Ecolab Hygiene Systems GmbH	Germany	100
Microtek Medical GmbH	Germany	100
Ecolab A.E.B.E.	Greece	100
Ecolab (Guam) LLC	Guam	100
Ecolab, Sociedad Anonima	Guatemala	100
Peter Cox Insurance Co. Limited	Guernsey	100
Quimicas Ecolab, S.A.	Honduras	100
Ecolab Limited	Hong Kong	100
Green Harbour Mainland Holdings Ltd	Hong Kong	100
Ecolab Holding Hungary LLC	Hungary	100
Ecolab Hygiene Kft.	Hungary	100
P.T. Ecolab Indonesia	Indonesia	100
Ecolab Food Safety and Hygiene Solutions Private Limited	India	100
Eclab Export Limited	Ireland	100
Ecolab Co.	Ireland	100
Ecolab Finance Company Limited	Ireland	100
Ecolab (Holdings) Limited	Ireland	100
Ecolab Limited	Ireland	100
Ecolab JVZ Limited	Israel	100
Ecolab-Zohar Dalia L.P.	Israel	51
Ecolab-Zohar Dalia Management Company Ltd.	Israel	51
Ecolab Holding Italy Srl	Italy	100
Ecolab Production Italy Srl (formerly: Findesauno Srl)	Italy	100
Ecolab Srl	Italy	100
Findesadue Srl	Italy	100
Ecolab Limited	Jamaica	100

Name of Affiliate	State or OtherJurisdiction ofIncorporation	Percentage of Ownership
Ecolab K.K.	Japan	100
Ecolab East Africa (Kenya) Limited	Kenya	100
Ecolab Korea Ltd.	Korea	100
Ecolab SIA	Latvia	100
Ecolab LUX 1 Sarl	Luxembourg	100
Ecolab LUX 2 Sarl	Luxembourg	100
Ecolab-Importacao E Exportacao Limitada	Macau	100
Ecolab Sdn Bhd	Malaysia	100
Microtek Medical Malta Limited	Malta	100
Microtek Medical Malta Holding Limited	Malta	100
Ecolab, S. de R.L. de C.V.	Mexico	100
Ecolab Holdings Mexico, S.A. de C.V.	Mexico	100
Ecolab Maroc S. A.	Morocco	100
Ecolab Finance N.V.	Netherlands Antilles (Curacao)	100
Ecolabone B.V.	Netherlands	100
Ecolabtwo B.V.	Netherlands	100
Ecolab Holdings B.V.	Netherlands	100
Ecolab B.V.	Netherlands	100
Ecolab NL 3 BV	Netherlands	100
Ecolab NL 4 BV	Netherlands	100
Ecolab NL 5 BV	Netherlands	100
Ecolab Production Netherlands BV	Netherlands	100
Microtek Medical Holding BV	Netherlands	100
Microtek Medical BV	Netherlands	100
Ecolab Limited	New Zealand	100

Name of Affiliate	State or OtherJurisdiction ofIncorporation	Percentage of Ownership
Ecolab Nicaragua, S.A.	Nicaragua	100
Ecolab A/S	Norway	100
Ecolab S.A.	Panama	100
Ecolab Chemicals Ltd.	People’s Republic of China	100
Ecolab China Ltd.	People’s Republic of China	100
Ecolab (China) Investment Co., Ltd.	People’s Republic of China	100
Ecolab (GZ) Chemicals Limited	People’s Republic of China	100
Guangzhou Green Harbour Environmental Operations	People’s Republic of China	100
Guangzhou Green Harbour Termite	People’s Republic of China	100
Ecolab Perú Holdings S.R.L.	Peru	100
Ecolab Philippines Inc.	Philippines	100
Ecolab Production Poland Sp. z o.o.	Poland	100
Ecolab Sp. z o.o.	Poland	100
Ecolab S.R.L.	Romania	100
ZAO Ecolab	Russia	100
Ecolab Hygiene d.o.o.	Serbia	100
Ecolab Pte. Ltd.	Singapore	100
Ecolab s.r.o.	Slovakia	100
Ecolab d.o.o.	Slovenia	100
Ecolab (Proprietary) Ltd.	South Africa	100
Ecolab Hispano-Portuguesa, S.A.	Spain	100
Ecolab (St. Lucia) Limited	St. Lucia	100
Ecolab AB	Sweden	100
Ecolab CH 1 GmbH	Switzerland	100

Name of Affiliate	State or OtherJurisdiction ofIncorporation	Percentage of Ownership
Ecolab CH 2 GmbH	Switzerland	100
Ecolab Europe GmbH	Switzerland	100
Ecolab (Schweiz) GmbH	Switzerland	100
Ecolab Ltd.	Taiwan	100
Ecolab East Africa (Tanzania) Limited	Tanzania	100
Ecolab Ltd.	Thailand	100
Ecolab (Trinidad & Tobago) Limited	Trinidad & Tobago	100
Ecolab Temizleme Sistemleri Limited Sirketi	Turkey	100
Ecolab East Africa (Uganda) Limited	Uganda	100
Ecolab LLC	Ukraine	100
Ecolab Emirates General Trading LLC	UAE	49
Ecolab Gulf FZE	UAE	100
Ecolab Limited	United Kingdom	100
Ecolab (U.K.) Holdings Limited	United Kingdom	100
Microtek Medical Europe, Ltd.	United Kingdom	100
Shield Holdings Limited	United Kingdom	100
Shield Medicare Limited	United Kingdom	100
Shield Salvage Associates Limited	United Kingdom	100
Ecolab S. A.	Uruguay	100
Ecolab S.A.	Venezuela	74
United States
Ecolabeight Inc.	Delaware	100
Ecolab AP Holdings LLC	Delaware	100
Ecolab USA Inc.	Delaware	100
Ecolab Holdings Inc.	Delaware	100

Name of Affiliate	State or OtherJurisdiction ofIncorporation	Percentage of Ownership
Ecolab Holdings (Europe) Inc.	Delaware	100
Ecolab Investment LLC	Delaware	100
Ecolab Israel Holdings LLC	Delaware	100
Ecolab Manufacturing Inc.	Delaware	100
Ecovation, Inc.	Delaware	100
GCS Service, Inc.	Delaware	100
Krofta Technologies, LLC	Delaware	100
Microtek Medical Inc.	Delaware	100
Total Enterprise Control LLC	Delaware	60
Wabasha Leasing LLC	Delaware	100
Microtek Medical Holdings Inc.	Georgia	100
Kay Chemical Company	North Carolina	100
Kay Chemical International, Inc.	North Carolina	100
Ecolab Food Safety Specialties Inc. (formerly: Daydots Inc.)	Texas	100

Certain additional subsidiaries, which are not significant in the aggregate, are not shown.