EXHIBIT 21
COGNIZANT CORPORATION
ACTIVE SUBSIDIARIES
AS OF JANUARY 31, 1998
STATE OR OTHER % OWNERSHIP
JURISDICTION 100% EXCEPT
NAME INCORPORATION AS NOTED
---- -------------- ------------
COGNIZANT ENTERPRISES, INC. Delaware
COGNIZANT INDIA HOLDING CORPORATION Delaware
CZT India Corporation Delaware
Dun & Bradstreet India Private Limited India
COGNIZANT SOFTWARE SOLUTIONS CORPORATION Delaware 98.28
Cognizant Technology Solutions Corporation Delaware
Cognizant Technology Solutions Canada, Inc. Ontario
Cognizant Technology Solutions India Limited India
Cognizant Technology Solutions UK Limited United Kingdom
CSS Investment Corporation Delaware
COGNIZANT TRANSPORTATION SERVICES CORPORATION Delaware
DBHC, INC. Delaware
LexHealth, Inc. Illinois
ERISCO, INC. New York
IMS COGNIZANT JAPAN K.K. Japan
SSJ K.K. Japan
IMS HOLDINGS (U.K.) LIMITED United Kingdom
Intercontinental Medical Statistics Ltd. United Kingdom
Imsworld Publications Ltd. United Kingdom
Medical Direct Mail Organisation Ltd. United Kingdom
PMS International Limited United Kingdom
Pharma Strategy Group Limited United Kingdom
I.M.S. INTERNATIONAL, INC. Delaware
IMS Australia Pty. Ltd. Australia
Amfac Pty. Limited Australia
Chemdata Pty. Limited Australia
Data Design Hisoft Pty. Limited Australia
Medrecord Australia Pty. Limited Australia
Permail Pty. Limited Australia
Healthnet Pty. Limited Australia
Informations Medicales Et Statistiques S.A. France
IMS of Canada, Ltd. Nova Scotia
IMS Taiwan Company Ltd. Taiwan 99.99
IMS Philippines, Inc. Philippines 99.96
IMS Pacific Limited Hong Kong
IMS Korea Ltd. Korea
IMS (NZ) Limited New Zealand
I.M.S. Portugal--Consultores Internacionais de Marketung Farmaceutico, Lda. Portugal
IMS International (South Africa) (Pty.) Ltd. South Africa
Decision Surveys International (Pty.) Ltd. South Africa
I.M.S. Financial, Inc. Delaware
21-1
COGNIZANT CORPORATION
ACTIVE SUBSIDIARIES
AS OF JANUARY 31, 1998
STATE OR OTHER % OWNERSHIP
JURISDICTION 100% EXCEPT
NAME INCORPORATION AS NOTED
---- -------------- ------------
I.M.S. INTERNATIONAL, INC. (CONTINUED)
IMS Software Services, Ltd. Delaware
Dun & Bradstreet Germany Holding GmbH Germany
IMS-MIDOC Medizinische Informations, Dokumentations
und Consultinggesellschaft mbH Germany
IMS Holding Deutschland GmbH Germany
IFNS Marktforschung GmbH Germany
IMS GmbH Institut fur Medizinische Germany
Statistik
IMS Data GmbH Germany
IMS Hellas Ltd. Greece
GPI Krankenhausforschung Germany 60.00
Gesellschaft Fur Pharma-
Informations-systeme m.b.H.
MedVantage GmbH Integriertes Germany 60.00
Datenmanagement im Health Care-Markt
Medicare Audit Limited United Kingdom 50.00
Intercontinental Medical Statistics Ireland Limited Ireland 99.99
IMS Information Medical Statistics (Israel) Ltd. Israel
IMS Asia (1989) Pte. Ltd. Singapore
IMS Pharminform Holding AG Switzerland
Cognizant Licensing Associates, L.P. Delaware 83.00
Athenian Leasing Corporation Delaware
Spartan Leasing Corporation Delaware
Pharmadat Marktforschungs-Gesellschaft m.b.H. Austria
Pharmacall Statistik Ges. m.b.H. Austria
Informations Medicales Et Statistiques S.A. Belgium
Pharma Data Boliviana S.R.L. Bolivia
IMS Servicos Ltda. Brazil
Intercomunicaciones y Servicio de Datos S.A. Colombia 98.96
IMS Medinform A.S. Czech Republic
IMS Republica Dominicana, S.A. Dominican Republic
Datandina Ecuador S.A. Ecuador
IMS Egypt Limited Egypt
Institute for Medical Statistics Oy Finland
Asserta Centroamerica Medicion de Mercados, S.A. Guatemala
IMS Medinform Hungaria Market Research Services Ltd. Hungary
IMS Data (M) Sdn. Bhd. Malaysia
Interdata S.A. de C.V. Mexico
Informations Medicales & Statistiques S.A.R.L. Morocco
I.M.S. (Nederland) B.V. Netherlands
IMS Denmark ApS Denmark
I.M.S. Finance (Nederland) B.V. Netherlands
Institute for Medical Statistics Norge A/S Norway
Pharma Data Paraguaya S.R.L. Paraguay
IMS Lanka (Private) Limited Sri Lanka
Datandina S.A. Peru
Intercontinental Marketing Services Iberica, S.A. Spain
Mercados y Analisis, S.A. Spain
21-2
COGNIZANT CORPORATION
ACTIVE SUBSIDIARIES
AS OF JANUARY 31, 1998
STATE OR OTHER % OWNERSHIP
JURISDICTION 100% EXCEPT
NAME INCORPORATION AS NOTED
---- -------------- ------------
I.M.S. INTERNATIONAL, INC. (CONTINUED)
Data Coordination AG Switzerland
PMA Sociedad Anonima Argentina
IMS AG Switzerland
IMS Information Medical Statistics AG Switzerland
IMS Poland Limited Sp. z.o.o. Poland
IMS Institute for Medical Statistics Sweden AB Sweden
RCI Research Consultants AG Switzerland
Marketing y Datos Limitada Chile
Interstatistik AG Switzerland
IMS Ges m.b.H. Austria
Datec Industria e Comercio, Distribuidora Grafica Brazil
e Mala Direta Ltda.
IMS Tunisia Tunisia
IMS Tibbi Istatistik Ticaret ve Musavirlik Ltd Sirketi Turkey
Pharma Data Uruguaya S.A. Uruguay
PMV de Venezuela, C.A. Venezuela
Clark-O'Neill, Inc. New Jersey
IMS America, Ltd. New Jersey
Coordinated Management Systems, Inc. Delaware
Intercontinental Medical Statistics International, Ltd. Delaware
Diogenes.com, Inc. Delaware
Cognizant Trading Corporation Delaware
IMS South Africa (Pty.) Ltd. South Africa
IMSA (Pty.) Ltd. South Africa
IPRA (Pty.) Ltd. South Africa
PMSA (Pty.) Ltd. South Africa
IMS SERVICES NEDERLAND B.V. Netherlands
IMS ITALIA S.P.A. Italy
IMS Holding (Belgium) S.A. Belgium
NIELSEN MEDIA RESEARCH, INC. Delaware
Media Licensing Associates, Inc. Delaware
CZT/ACN Trademarks, L.L.C. Delaware 50.00
NIELSEN MEDIA RESEARCH LTD. Nova Scotia
SALES TECHNOLOGIES, INC. Georgia
21-3