EXHBIT 21
IMS HEALTH INCORPORATED
ACTIVE SUBSIDIARIES
AS OF DECEMBER 31, 1998
STATE OR OTHER % OWNERSHIP
JURISDICTION OF 100% EXCEPT
NAME INCORPORATION AS NOTED
---- --------------- -------------
CLARK-O'NEILL, INC. New Jersey
COGNIZANT TECHNOLOGY SOLUTIONS CORPORATION Delaware 61.70
Cognizant Technology Solutions U.S. 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
COORDINATED MANAGEMENT SYSTEMS, INC. Delaware
DBHC, INC. Delaware
LexHealth, Inc. Illinois
ENTERPRISE ASSOCIATES, INC. Delaware
ERISCO MANAGED CARE TECHNOLOGIES, INC. New York
IMS ASIA (1989) PTE. LTD. Singapore
IMS OF CANADA LTD. Nova Scotia
IMS CHINAMETRIK LIMITED Hong Kong
IMS CHINAMETRIK INCORPORATED Delaware
IMS DEUTSCHLAND GMBH Germany
IMS-MIDOC Medizinische Informations, Dokumentations
und Consultinggesellschaft mbH Germany
GIC Gesellschaft fur Informationstechnologie und Consulting mbH Germany
Infor-med Gesellschaft fur Marketing 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
IMS HEALTH INDIA HOLDING CORPORATION Delaware
RX India Corporation Delaware
IMS Health India Private Limited India
EXHBIT 21
IMS HEALTH INCORPORATED
ACTIVE SUBSIDIARIES
AS OF DECEMBER 31, 1998
STATE OR OTHER % OWNERSHIP
JURISDICTION OF 100% EXCEPT
NAME INCORPORATION AS NOTED
---- --------------- -------------
IMS HEALTH STRATEGIC TECHNOLOGIES, INC. Delaware
IMSH L.L.C. 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
Walsh International Pty. Ltd. Australia
Walsh New Zealand Ltd. New Zealand
PMS Pty. Ltd. Australia
IMS Health HQ Limited United Kingdom
IMS H Nederland BV Netherlands
Walsh European Holdings BV Netherlands
Walsh Belgium BV Belgium
Walsh Hispania S.A. Spain
IMS HEALTH STRATEGIC TECHNOLOGIES S.A France
Walsh Italy S.r.L. Italy
Walsh Nederland BV Netherlands
Walsh International Holdings GmbH Germany
Walsh International Holdings GesmbH Austria
Walsh Ltd. United Kingdom
PMSI Database B.V. Netherlands
IMS Services Nederland B.V. Netherlands
Walsh Asia Pacific (Pte.) Ltd. Singapore 51.00
Walsh Pharmaceutical Marketing Services Ltd. Ontario
IMS HEALTH TRADING CORPORATION Delaware
IMS South Africa (Pty.) Ltd. South Africa
Decision Surveys International(Pty.) Ltd. South Africa
IPRA (Pty.) Ltd. South Africa
PMSA (Pty.) Ltd. South Africa
IMS HEALTH TRANSPORTATION SERVICES CORPORATION Delaware
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
IMS INFORMATION MEDICAL STATISTICS (ISRAEL) LTD. Israel
IMS INTERNATIONAL (SOUTH AFRICA) (PTY.) LTD. South Africa
IMS South Africa (Pty.) Ltd. South Africa
IMS ITALIA S.P.A. Italy
IMS Holding (Belgium) S.A. Belgium
IMS JAPAN K.K. Japan
SSJ K.K. Japan
IMS KOREA LTD. Korea
EXHBIT 21
IMS HEALTH INCORPORATED
ACTIVE SUBSIDIARIES
AS OF DECEMBER 31, 1998
STATE OR OTHER % OWNERSHIP
JURISDICTION OF 100% EXCEPT
NAME INCORPORATION AS NOTED
---- --------------- -------------
IMS (NZ) LIMITED New Zealand
IMS PHARMINFORM HOLDING AG Switzerland
IMS Health Licensing Associates, L.P. Delaware 84.52
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
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
IMS PHILIPPINES, INC. Philippines 99.96
I.M.S. PORTUGAL-CONSULTORES INTERNACIONAIS DE
MARKETUNG FARMACEUTICO, LDA Portugal
IMS SOFTWARE SERVICES, LTD. Delaware
IMS TAIWAN COMPANY LTD. Taiwan 99.99
EXHBIT 21
IMS HEALTH INCORPORATED
ACTIVE SUBSIDIARIES
AS OF DECEMBER 31, 1998
STATE OR OTHER % OWNERSHIP
JURISDICTION OF 100% EXCEPT
NAME INCORPORATION AS NOTED
---- --------------- -------------
IMSH MEDICAL S.A. France
INFORMATIONS MEDICALES ET STATISTIQUES S.A. France
INTERCONTINENTAL MEDICAL STATISTICS INTERNATIONAL, LTD. Delaware
INTERCONTINENTAL MEDICAL STATISTICS IRELAND LIMITED Ireland 99.99
LOGIMED S.A.R.L. France
MEDICARE AUDIT LIMITED United Kingdom 50.00
MEDI-DIFF S.A. France
PMSI HISPANIA S.A. Spain
PMSI JAPAN K.K. Japan
PMSI MEDILOG GESUNDHEITSFORSCHUNG
DEUTSCHLAND G.M.B.H. Germany
PMSI UK LIMITED United Kingdom
PMSI Medical Research Factors Limited United Kingdom
Mediphase Limited United Kingdom
Pharmacy Systems Limited United Kingdom
Docpal Systems Limited United Kingdom
Specialist Media Services Limited United Kingdom
CMA Data Services Limited United Kingdom
CMA Medical Data Limited United Kingdom 98.50
SOURCE INFORMATICS FRANCE S.A. France
SOURCE INFORMATICS DEUTSCHLAND GMBH Germany
SOURCE INFORMATICS EUROPE B.V. Netherlands
SOURCE INFORMATICS ITALIA S.R.L. Italy
SOURCE INFORMATICS LIMITED United Kingdom
SOURCE INFORMATICS NEDERLAND B.V. Netherlands