Exhibit 21

		Ownership
Company Name	Jurisdiction of Creation	Percentage
Corinthian Leasing Corporation	Delaware		100	%
DataBase Publishing Co.	California		100	%
Dataquest Europe	England		100	%
D&B APLA Technology Pty Limited	Australia		100	%
D&B Acquisition Corp	Delaware		100	%
D&B Espana S.A.	Spain		100	%
D&B Europe Limited	England		100	%
D&B Group Ltd.	Delaware		100	%
D&B Holdings UK Limited	England		100	%
D&B Information Services (M) Sdn. Bhd	Malaysia		100	%
D&B International Consultant (Shanghai) Co. Ltd.	Peoples Republic of China		100	%
Dun & Bradstreet Unterstutzungskasse GmbH	Germany		100	%
Dun & Bradstreet Belgium NV/SA	Belgium/Delaware		100	%
Dun & Bradstreet (France) B.V	Netherlands		100	%
Dun & Bradstreet (HK) Limited	Hong Kong		100	%
Dun & Bradstreet (Israel) Ltd.	Israel		100	%
Dun & Bradstreet (SCS) B.V	Netherlands		100	%
Dun & Bradstreet (Singapore) Pte. Ltd.	Singapore		100	%
Dun & Bradstreet (Switzerland) AG	Switzerland/Delaware		100	%
Dun & Bradstreet (U.K.) Pension Plan Trustee Company Ltd.	England		100	%
Dun & Bradstreet B.V	Netherlands		100	%
Dun & Bradstreet Canada B.V	Netherlands		100	%
Dun & Bradstreet Canada Holding, Ltd.	Canada		100	%
Dun & Bradstreet Computer Leasing, Inc.	Delaware		100	%
Dun & Bradstreet Credit Control, Ltd.	Delaware		100	%
Dun & Bradstreet Danmark Holding A/S	Denmark		100	%
Dun & Bradstreet de Mexico, S.A. de C.V.	Mexico		100	%
Dun & Bradstreet Denmark A/S	Denmark		100	%
Dun & Bradstreet Deutschland GmbH	Germany/Delaware		100	%
Dun & Bradstreet Do Brasil, Ltda.	Brazil/Delaware		100	%
Dun & Bradstreet Ekonomiforlaget AB	Sweden		100	%
Dun & Bradstreet Finance Ltd.	England		100	%
Dun & Bradstreet Finland OY	Finland		100	%
Dun & Bradstreet France S.C.S	France		100	%
Dun & Bradstreet Holding Norway A/S	Norway		100	%
Dun & Bradstreet Holdings B.V	Netherlands		100	%
Dun & Bradstreet Hungaria Informacio Szolgaltato
Korlatolt Felelosegu Tarasag	Hungary		100	%
Dun & Bradstreet Information Services Ges.mbH	Austria		100	%
Dun & Bradstreet Information Services India Pvt. Ltd.	India		100	%
Dun & Bradstreet International, Ltd.	Delaware		100	%
Dun & Bradstreet Japan Ltd.	Japan		100	%
Dun & Bradstreet Limited	Ireland		100	%
Dun & Bradstreet Limited	England		100	%
Dun & Bradstreet Marketing Services N.V. — S.A.	Belgium		100	%
Dun & Bradstreet Norge A/S	Norway		100	%
Dun & Bradstreet Poland sp. z o.o	Poland		100	%
Dun & Bradstreet Portugal, Ltda.	Portugal		100	%
Dun & Bradstreet Property Investments Ltd.	England		100	%
Dun & Bradstreet S.A.	Argentina		100	%
Dun & Bradstreet S.p.A	Italy		100	%
Dun & Bradstreet spol s. r. o	Czech Republic		100	%
Dun & Bradstreet Sverige AB	Sweden		100	%
Dun & Bradstreet Telecenter B.V	Netherlands		100	%
Dun & Bradstreet Teleupdate Center GmbH	Germany		100	%
Dun & Bradstreet Ventures, Inc.	Delaware		100	%
Dun & Bradstreet, Inc.	Delaware		100	%

		Ownership
Company Name	Jurisdiction of Creation	Percentage
Duns Holding, Inc.	Delaware		100	%
Duns Investing VII Corporation	Delaware		100	%
DunsNet, Inc.	Delaware		100	%
eccelerate.com, Inc.	Delaware		100	%
Enshrine CA Pty. Ltd.	Australia		50	%
Fillupar Leasing Partnership	Delaware		98	%
Harris Infosource International, Inc.	Ohio		100	%
iMarket Inc.	Massachusetts		100	%
The D&B Companies of Canada Ltd.	Canada		100	%
Zapdata.com, Inc	Massachusetts		100	%