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Exhibit 21

LIST OF SUBSIDIARIES

Subsidiary									Jurisdiction of Organization
Credit Bureau of Carmel & Pebble Beach, Inc.									CA
Administrative Services, LLC									DE
Aerial Acquisition Corp.									DE
Aerial Intermediate Holdings Corp.									DE
Aerial Ultimate Holdings Corp.									DE
Aggregate Knowledge, LLC									DE
Argus Information and Advisory Services, Inc.									DE
Commerce Signals, Inc.									DE
Credit Retriever LLC									DE
Data Solutions Services, LLC									DE
Datasnap.io, Inc.									DE
Drivers History Information Sales LLC									DE
eBureau, LLC									DE
EZS Parent, Inc.									DE
EZShield Group Parent, LLC									DE
FactorTrust, Inc.									DE
FT Holdings, Inc.									DE
INSDEC LLC									DE
iovation Inc.									DE
IS Resources, Inc.									DE
JovianData, Inc.									DE
L2C, Inc.									DE
Link Marketing, Inc.									DE
Link2credit, Inc.									DE
LSSi Data Corp.									DE
MarketShare Acquisition Corporation									DE
MarketShare Holdings, Inc.									DE
MarketShare Partners Asia, LLC									DE
MarketShare Partners, LLC									DE
Neustar Data Services, Inc.									DE
Neustar Information Services, Inc.									DE
Neustar International Services, Inc.									DE
Neustar IP Intelligence, Inc.									DE
Neustar NGM Services, LLC									DE
Neustar, Inc.									DE
Signal Digital LLC									DE
Signal Digital, Inc.									DE
Sontiq, Inc.									DE
Trans Union Consumer Solutions, LLC									DE
Trans Union Content Solutions LLC									DE
Trans Union International, Inc.									DE

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Trans Union LLC									DE
Trans Union Real Estate Services, Inc.									DE
TransUnion Data Solutions LLC									DE
TransUnion Digital LLC									DE
TransUnion Exchange LLC									DE
TransUnion Financing Corporation									DE
TransUnion Gaming Services Holdings LLC									DE
TransUnion Gaming Services LLC									DE
TransUnion Global Holdings LLC									DE
TransUnion Interactive, Inc.									DE
TransUnion Intermediate Holdings, Inc.									DE
TransUnion International Holdings LLC									DE
TransUnion Rental Screening Solutions, Inc.									DE
TransUnion Risk Advisory, Inc.									DE
TransUnion Risk and Alternative Data Solutions, Inc.									DE
Tru Optik Data Corp.									DE
TruSignal, Inc.									DE
TRUSTID, Inc.									DE
Verifacts LLC									DE
Decision Systems, Inc.									GA
DSET Corporation									GA
Visionary Systems, Inc.									GA
Worthknowing, Inc.									GA
Driver’s History Inc.									NJ
Datalink Services, Inc.									NV
TransUnion Intelligence LLC									NV
TransUnion Teledata LLC									OR
Title Insurance Services Corporation									SC
Scout Risk Group, Inc.									VT
Argus Information and Advisory Services Australia Pty Ltd									Australia
CyberScout Pty Ltd.									Australia
Credit Reference Bureau Africa (Pty) Ltd.									Botswana
TransUnion (Proprietary) Ltd.									Botswana
Neustar Brasil Tecnologia E Marketing Ltda.									Brazil
TransUnion Brasil Sistemas em Informatica Ltda.									Brazil
CyberScout Inc.									Canada
CyberScout Adjusting Inc.									Canada
Trans Union of Canada, Inc.									Canada
Trans Union Chile, S.A.									Chile
TransUnion Soluciones de Informacion Chile SA									Chile
TransUnion Information Technology (Beijing) Co., Ltd.									China
CIFIN S.A.S.									Colombia
Trans Union Costa Rica, S.A.									Costa Rica
TransUnion Global Capability Center Costa Rica Limitada									Costa Rica
TransUnion Holding Cyprus Ltd.									Cyprus

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Centro de Informacion y Estudios Estrategicos Empresariales S.A.									Dominican Rep.
Centro de Operaciones y Servicios de Informacion Estrategica, S.A.									Dominican Rep.
TransUnion, S.A.									Dominican Rep.
TransUnion El Salvador, S.A. de C.V.									El Salvador
TransUnion Eswatini (Pty) Ltd.									Eswatini
Neustar GmbH									Germany
Soluciones de Informatica de Centroamerica (SICE), S.A.									Guatemala
Trans Union Guatemala, S.A.									Guatemala
Trans Union Honduras-Buro de Credito S.A.									Honduras
Credit Information Services Limited									Hong Kong
Neustar Hong Kong Ltd.									Hong Kong
TransUnion Asia Ltd.									Hong Kong
TransUnion Credit Information Services Limited									Hong Kong
TransUnion Limited									Hong Kong
TransUnion Global Capability Center Private Limited									India
TransUnion India Data Analytics Solutions Private Limited									India
TransUnion CIBIL Limited									India
TransUnion Global Technology Center LLP									India
CyberScout Ventures Ltd.									Ireland
Trustev Limited									Ireland
Neustar R&D (Israel) Ltd.									Israel
Credit Information Systems Company Limited									Kenya
Credit Reference Bureau (Holdings) Limited									Kenya
Credit Reference Bureau Africa Ltd.									Kenya
TransUnion Kenya Limited									Kenya
TransUnion Baltics UAB									Lithuania
TransUnion Ltd.									Malawi
CyberScout Sdn Bhd.									Malaysia
TransUnion (Mauritius) Limited									Mauritius
STS Vail Beheeren Administracion S. DE. R.L. DE C.V.									Mexico
TransUnion Reverse Exchange S de R.L. de C.V.									Mexico
TransUnion Soluciones de Informacion, S de R.L de C.V.									Mexico
TransUnion Credit Bureau Namibia (Pty) Ltd.									Namibia
Neustar IP Intelligence, B.V.									Netherlands
TransUnion Netherlands I, B.V.									Netherlands
TransUnion Netherlands II, B.V.									Netherlands
Trans Union Nicaragua, S.A.									Nicaragua
Trans Union Central America, S.A.									Panama
TransUnion Information Solutions Inc.									Philippines
Trans Union de Puerto Rico, Inc.									Puerto Rico
TransUnion Rwanda Limited									Rwanda
Autolocator (Pty) Ltd.									South Africa
TransUnion Africa (Pty) Ltd.									South Africa
TransUnion Africa Holdings (Pty) Ltd.									South Africa
TransUnion Analytic and Decision Services (Pty) Ltd.									South Africa

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TransUnion Auto Information Solutions (Pty) Ltd.									South Africa
TransUnion Credit Bureau (Pty) Ltd.									South Africa
TransUnion Global Capability Centre Africa (Pty) Ltd.									South Africa
Confirma Sistemas de Informacion, S.L.									Spain
TransUnion Information Group Spain S.L.U.									Spain
Collection Africa Ltd.									Tanzania
Credit Reference Bureau Africa Ltd.									Tanzania
Credit Reporting Services Limited									Trinidad & Tobago
Argus Information and Advisory Services UK Ltd									United Kingdom
Callcredit Marketing Limited									United Kingdom
Crown Acquisition BidCo, Ltd.									United Kingdom
CyberScout Ltd.									United Kingdom
DecisionMetrics Limited									United Kingdom
iovation, Ltd.									United Kingdom
MarketShare Partners EMEA, Ltd.									United Kingdom
Neustar Technologies Limited									United Kingdom
TransUnion Global Funding Limited									United Kingdom
TransUnion Global Holdings LP									United Kingdom
TransUnion Information Group, Limited									United Kingdom
TransUnion International UK Limited									United Kingdom
TransUnion UK Holdings Ltd.									United Kingdom
Vail Holdings UK Ltd.									United Kingdom
Credit Reference Bureau Africa Ltd.									Zambia