. . . EXHIBIT 21.1 THE DUN & BRADSTREET CORPORATION SUBSIDIARIES COMPANY NAME JURISDICTION OF CREATION - ------------ ------------------------ AB Svensk Handelstidning Justitia Sweden Alpha Mi A.E. Greece Bilans Service SNC (France) France Binney's Gazette Ltd. Ireland Business On-Line Co., Ltd. ("BOL") Thailand Business Ratios Ltd. England Call Credit Ltd. England Callbiz (Singapore) Pte. Ltd. Singapore Campbells Consumer Enquiries Pty. Ltd South Africa Cedac Srl Italy Corinthian Holdings, Inc. Delaware Corinthian Leasing Corporation Delaware Credit Bureau (Singapore) Pte. Ltd. Singapore Credit Information Bureau (India) Limited India Credit Information Services, Limited South Africa Credit Information Services, Limited (CIS) Hong Kong Credit Skills & Management (Pty) Ltd. South Africa D & B Group Ltd. Delaware D&B Acquisition Corp. Delaware D&B APLA Technology Pty Ltd. Australia D&B Espana S.A. Spain D&B Europe Ltd. England D&B Group Holdings (UK) Ltd. England D&B Holdings (UK) England D&B Information Services (M) Sdn. Bhd. Malaysia D&B International Consultant (Shanghai) Co. Ltd. Peoples Republic of China D&B Unterstuzungskasse GmbH Germany D&B Investors, LP Delaware D&B Property Holdings, Inc Delaware Datahouse Spa Italy Dataquest Europe Ltd. England DB Soliditet AB Sweden DBIC Holdings Pte. Ltd. (Singapore) Singapore DBS Medium Systems Ireland (Ireland) Ireland DBS Moyens Systems S.A. (France) France Delfin Securities (Pty) Ltd. (South Africa) / ITC BA South Africa DistressDebt Corporation Delaware Dun & Bradstreet Belgium NV/SA Belgium Dun & Bradstreet (HK) Limited Hong Kong Dun & Bradstreet (Israel) Ltd. Israel Dun & Bradstreet (NMR) Limited England Dun & Bradstreet (SCS) B.V. Netherlands Dun & Bradstreet (Singapore) Pte. Ltd. Singapore Dun & Bradstreet (Switzerland) AG Switzerland/Delaware Dun & Bradstreet (U.K.) Pension Plan Trustee Company Ltd. England Dun & Bradstreet B.V. Netherlands 1 THE DUN & BRADSTREET CORPORATION SUBSIDIARIES COMPANY NAME JURISDICTION OF CREATION - ------------ ------------------------ Dun & Bradstreet C.A. Venezuela Dun & Bradstreet C.I.S. Russia Dun & Bradstreet Canada B.V. Netherlands Dun & Bradstreet Canada Holding, Ltd Canada Dun & Bradstreet Computer Leasing, Inc. Delaware Dun & Bradstreet Credit Control, Ltd. Delaware Dun & Bradstreet Credit Reporting (Israel) Israel Dun & Bradstreet Danmark Holding A/S Denmark Dun & Bradstreet de Mexico, S.A. de C.V. Mexico Dun & Bradstreet Denmark A/S (Denmark) Denmark Dun & Bradstreet Deutschland GmbH Germany/Delaware Dun & Bradstreet Do Brasil, Ltda. Brazil/Delaware Dun & Bradstreet Ekonomiforlaget AB Sweden Dun & Bradstreet Europe, Ltd. Delaware Dun & Bradstreet Finance, Ltd. England Dun & Bradstreet Finland OY Finland Dun & Bradstreet France S.C.S. France Dun & Bradstreet Holding Norway A/S Norway Dun & Bradstreet Holdings B.V. Netherlands Dun & Bradstreet Holdings-France, Inc. Delaware Dun & Bradstreet Hungaria Informacio Szolgaltato Korlatolt Hungary Felelosegu Tarasag Dun & Bradstreet, Inc. Delaware Dun & Bradstreet Information Services Ges.mbH Austria Dun & Bradstreet Information Services India Pvt. Ltd. India Dun & Bradstreet International, Ltd. Delaware Dun & Bradstreet Japan Ltd. Japan Dun & Bradstreet Limited Ireland Dun & Bradstreet Limited England Dun & Bradstreet Ltda. Chile Dun & Bradstreet Management S.A.S. France Dun & Bradstreet Marketing Services N.V.-S.A. Belgium Dun & Bradstreet Nordic AB Sweden Dun & Bradstreet Poland sp. zo.o. Poland Dun & Bradstreet Portugal, Ltda. Portugal Dun & Bradstreet Properties Ltd. England Dun & Bradstreet Property Investments Ltd. England Dun & Bradstreet S.A. Argentina Dun & Bradstreet S.A. Peru Dun & Bradstreet S.A. Uruguay Dun & Bradstreet S.A. Sociedad Sociedad de Informacion Mexico Crediticia Dun & Bradstreet S.p.A. Italy Dun & Bradstreet Servicios De Consultadoria E Apoio a Gestao De Portugal Contas Correntes, Lda. Dun & Bradstreet Software Services Australia Holdings Pty. Ltd. Australia 2 THE DUN & BRADSTREET CORPORATION SUBSIDIARIES COMPANY NAME JURISDICTION OF CREATION - ------------ ------------------------ Dun & Bradstreet Software Services Iberica S.A. Spain Dun & Bradstreet Software Services International, Inc. Georgia Dun & Bradstreet spol s. r. o. Czech Republic Dun & Bradstreet Sverige AB Sweden Dun & Bradstreet Teleupdate Center GmbH Germany Dun & Bradstreet Ventures, Inc. Delaware DunBrad, Inc Delaware Duns Investing Corporation Delaware Duns Investing VII Corporation Delaware Duns Investing VIII Corporation Delaware Duns Investing IX Corporation Delaware Dunsgate Limited England DunsNet, LLC Delaware Eastvaal Credit Bureau (Pty) Ltd. South Africa Elevation Melbourne Pty. Ltd. Australia Enniscale Holdings Ltd. England Fillupar Leasing Partnership Delaware Greyling's Credit Control (Pty) Ltd. (South Africa) South Africa Harris Infosource International, Inc. Ohio Ifico-Buergel AG Switzerland Infocredit D&B (Singapore) Pte. Ltd. Singapore Infocredit D&B Malasia Sdn. Bhd. Malaysia Information Trust Corporation (Pty.) Ltd. South Africa IRM Kabushiki Kaisha (Japan) Japan Italservice Spa Italy Italservice Srl Italy ITC Botswana (Pty) Ltd. (South Africa) South Africa ITC Namibia (Pty) Ltd. South Africa ITC Swaziland (Pty) Ltd. (South Africa) South Africa ITC-Vision (Pty.) Ltd. South Africa Kosmos Business Information Limited England Live Capital, Inc. California McCormack & Dodge (Argentina) Argentina McCormack & Dodge Mexico (Mexico) Mexico Miami International Limited England Microband of Virginia, Inc. Virginia Milano Data Entry Srl Italy MostMetals.com Limited England MSA Do Brasil Sistemas E Metados Ltda. Brazil N.V. Dun & Bradstreet-Eurinform S.A. Delaware Open Ratings, Inc. Massachusetts Palmetto Assurance Ltd. Bermuda Pintos Global Services Limited England Prosistemi Srl Italy RIBES Spa Italy 3 THE DUN & BRADSTREET CORPORATION SUBSIDIARIES COMPANY NAME JURISDICTION OF CREATION - ------------ ------------------------ Sicev-Societa Italiana Consulenze e Valutazioni S.p.A. Italy Stubbs (Ireland) Ltd. England Stubbs' Directories Ltd. England Stubbs' Ltd. England The D&B Companies of Canada Ltd. Canada The Dun & Bradstreet Corporation Foundation (non-profit) Delaware threeW.net plc England Trade Reach Limited England Veri-Cheque (Pty.) Ltd. South Africa Who Owns Whom Ltd. England 4