Exhibit 21

LIST OF SUBSIDIARIES

Subsidiary		Jurisdiction of Organization
TransUnion Corp.		DE
	TransUnion Risk and Alternative Data Solutions, Inc.	DE
	Trans Union LLC	DE
Trans Union International Inc.		DE
Source USA Insurance Agency, Inc.		IL
TransUnion International Holdings LLC		DE
TransUnion HealthCare LLC		DE
Diversified Data Development Corporation		CA
Financial Healthcare Systems, LLC		CO
TransUnion Teledata LLC		OR
Decision Systems, Inc.		GA
TransUnion Exchange Corporation		CA
TransUnion Reverse Exchange Corporation		DE
TransUnion Intelligence LLC		NV
TransUnion Rental Screening Solutions, Inc.		DE
Credit Retriever LLC		DE
Verifacts LLC		DE
INSDEC LLC		DE
TransUnion Consumer Solutions LLC		DE
Trans Union Content Solutions LLC		DE
TransUnion Interactive, Inc.		DE
Title Insurance Services Corporation		SC
TransUnion Marketing Solutions, Inc.		IL
Trans Union Real Estate Services, Inc.		DE
Visionary Systems, Inc.		GA
Worthknowing, Inc.		GA
TransUnion Financing Corporation		DE
e-Scan Data Systems, Inc.		TX
ITC Botswana (Pty) Ltd.		Botswana
Credit Reference Bureau Africa (Pty) Ltd.		Botswana
Collection Africa (Pty) Ltd.		Botswana
Crivo Sistemas em Informatica S.A.		Brazil
Moussoro Participacoes Ltda.		Brazil
Singida Data Solutions Ltda.		Brazil
Trans Union of Canada, Inc.		Canada
Trans Union Chile, S.A.		Chile
Databusiness S.A.		Chile
TransUnion Information Technology (Beijing) Co., Ltd.		China
TransUnion Colombia Ltda.		Colombia

Trans Union Costa Rica, TUCR, S.A.	Costa Rica
Centro de Informacion y Estudios Estrategicos Empresariales S.A.	Dominican Rep.
TransUnion S.A.	Dominican Rep.
Centro de Operaciones y Servicios de Informacion Estrategica, S.A.	Dominican Rep.
TransUnion El Salvador, S.A. de C.V.	El Salvador
Trans Union Guatemala, S.A.	Guatemala
Soluciones de Informatica de Centroamerica (SICE), S.A.	Guatemala
Trans Union Honduras Buro de Credito, S.A.	Honduras
TransUnion Limited	Hong Kong
TransUnion Asia Ltd.	Hong Kong
TransUnion Information Services Limited	Hong Kong
Credit Information Services Limited	Hong Kong
Trans Union Software Services Private Limited	India
Trans Union (Israel) Ltd.	Israel
TransUnion Jamaica Limited	Jamaica
TransUnion Kenya Limited	Kenya
Credit Reference Bureau (Holdings) Limited	Kenya
Regional Data Systems Limited	Kenya
Credit Information Systems Company Limited	Kenya
Collection Africa (Pty) Ltd.	Kenya
Credit Reference Bureau Africa (Pty) Ltd.	Kenya
Credit Reference Bureau Africa (Pty) Ltd.	Malawi
Collection Africa (Pty) Ltd.	Malawi
STS Vail Beheeren Administracion S. DE. R.L. DE C.V.	Mexico
TransUnion Soluciones de Informacion, S de R.L de C.V.	Mexico
Credit Reference Bureau Africa (Pty) Ltd.	Mozambique
TransUnion Credit Bureau Namibia (Pty) Ltd.	Namibia
Beheer en Beleggingsmaatchapij Stivaco B.V.	Netherlands
Vail Systemen Groep, B.V.	Netherlands
TransUnion Netherlands I, B.V.	Netherlands
TransUnion Netherlands II, B.V.	Netherlands
TransUnion Nicaragua, S.A.	Nicaragua
Trans Union Central America, S.A.	Panama
TransUnion Information Solutions, Inc.	Philippines
Trans Union de Puerto Rico, Inc.	Puerto Rico
Credit Reference Bureau Africa (Pty) Ltd.	Rwanda
Collection Africa (Pty) Ltd.	Rwanda
TransUnion Africa Holdings (Pty) Ltd.	South Africa
TransUnion Credit Bureau (Pty) Ltd.	South Africa
TransUnion Africa (Pty) Ltd.	South Africa
TransUnion HPI (Pty) Ltd.	South Africa
TransUnion Mead & McGrouther (Pty) Ltd.	South Africa
TransUnion Analytic and Decision Services (Pty) Ltd.	South Africa
TransUnion CGS (Pty) Ltd.	South Africa
TransUnion Auto Information Solutions (Pty) Ltd.	South Africa
Autolocator (Pty) Ltd.	South Africa

TransUnion ITC (Pty) Ltd.	Swaziland
Credit Reference Bureau Africa (Pty) Ltd.	Tanzania
Collection Africa (Pty) Ltd.	Tanzania
Credit Reporting Services Limited	Trinidad & Tobago
Credit Reference Bureau Africa (Pty) Ltd.	Uganda
TransUnion Company of Vietnam Ltd.	Vietnam
Credit Reference Bureau Africa (Pty) Ltd.	Zambia
Collection Africa (Pty) Ltd.	Zambia
Trans Union (Private) Ltd.	Zimbabwe