EXHIBIT 21
ACNIELSEN CORPORATION
LIST OF ACTIVE SUBSIDIARIES - 1/31/98
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State or other % Ownership
Name Jurisdiction of 100% Except
Incorporation as Noted
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A. C. NIELSEN COMPANY Delaware
A. C. Nielsen (Argentina) S.A. Delaware
Control Publicitario S.A. Argentina
IPSA S.A. Argentina
A.C. Nielsen Argentina S.A. Argentina
A. C. Nielsen Ges.mbH Austria
ANR Piackutato Kft. Hungary
A. C. Nielsen Company (Belgium) S.A. Belgium
A. C. Nielsen Company & Co. SNC Belgium
A. C. Nielsen do Brasil Ltda. Brazil
Companhia Brasileira de Pesquisa e Analise Brazil
ACNielsen Canada Holding Ltd. Canada
ACNielsen Company of Canada Limited Canada
Nielsen Korea Limited Korea
A. C. Nielsen Chile Limitada Chile
A. C. Nielsen Chile S.A. Chile 51.0
A. C. Nielsen de Colombia S.A. Colombia
Nielsen del Ecuador S.A. Ecuador
ACNielsen AIM A/S Denmark
AIM Farmstat ApS Denmark 66.67
A. C. Nielsen S.A. France
ERIM S.A. France
Panel de Gestion S.A.R.L. France
A. C. Nielsen (Dublin) Limited Ireland
A. C. Nielsen of Ireland Limited Ireland
A. C. Nielsen Italia S.p.A. Italy
C.R.A. S.r.l. Italy
Telepanel S.A. Italy
SITA, Societa per gli Indici Tessile e Abbigliamento-S.r.l. Italy 75.0
Management Tools S.r.l. Italy 60.0
A. C. NIELSEN COMPANY (Continued)
A. C. Nielsen (Nederland) B.V. The Netherlands
ACNielsen Polen B.V. The Netherlands
ANR Amer Nielsen Research Sp. z..o.o. Poland
ACNielsen South Africa Holdings B.V. The Netherlands
ACNielsen South Africa B.V. The Netherlands
Nielsen Marketing Research spol, s.r.o. Czech Republic
Nederland Centrum voor Marketing Analyses B.V. The Netherlands 70.0
ZET-Nielsen Business Information A.S. Turkey 85.0
A. C. Nielsen (N.Z.) Limited New Zealand
AGB McNair Group Ltd. New Zealand
Media Research Services Ltd. New Zealand 75.0
Market Research (NZ) Ltd. New Zealand
ACNielsen Norge AS Norway 98.9
ACNielsen Reklame-Statistikk Norway 83.7
A. C. Nielsen de Panama S.A. Panama
A. C. Nielsen Peru S.A. Peru
ACNielsen Portugal - Estudos de Mercado, Lda. Portugal
A. C. Nielsen P.R. Inc. Puerto Rico
A. C. Nielsen Singapore Pte. Ltd. Singapore
A.C. Nielsen Company AB Sweden
A. C. Nielsen Management Services S.A. Switzerland
A. C. Nielsen S.A. Switzerland
Media Focus Switzerland 50.0
ACN/PIB Partners Connecticut 50.01
ANR Amer Nielsen Research Limited Cyprus 51.0
ANR Amer-Nielsen Research Hellas S.A. Greece 80.0
ART Holding, L.L.C. Delaware
A. C. NIELSEN COMPANY (Continued)
Neslein Holding Spain C.V. The Netherlands
ACNielsen Holdings Spain B.V. The Netherlands
ASEE Nielsen Holding Spain Srl Spain
N&P Holdings Spain S.A. Spain
A. C. Nielsen Company S.A. Spain
Infoadex S.A. Spain 50.0
Panel Internacional S.A. Spain
Nielsen Holdings, Inc. Delaware
Nielsen Japan K.K. Japan
Nielsen Leasing Corporation Delaware
Panel International S.A. Delaware
Teollisuuden Tielopalvelu Industrial Intelligence Ltd. Oy Finland
A. C. Nielsen Finland Oy Finland
Finnpanel Oy Finland 50.0
A. C. NIELSEN COMPANY LIMITED England
ACNIELSEN HOLDING GmbH Germany
ACN Marketing Research Holding GmbH Germany
A. C. Nielsen GmbH Germany
A. C. Nielsen Werbeforschung S&P GmbH Germany
"P&S" Handelsberatung GmbH Germany
ACNIELSEN MARKETING RESEARCH INDIA PRIVATE LIMITED India
ACNielsen Research Services Private Limited India 70.0
CZT/ACN TRADEMARKS, L.L.C. Delaware 50.0
ENTERTAINMENT DATA, INC. California
Entertainment Data France S.A.R.L. France
Entertainment Data GmbH Germany
Entertainment Data Espana S.L. Spain
ENTERTAINMENT DATA, INC. 2 California
ENTERTAINMENT DATA INTERNATIONAL LIMITED England
MARKET SHARE MEIDA SHIVUKI LTD. Israel 90.0
NESLEIN HOLDING, L.L.C. Delaware
NESLEIN HOLDING (AUSTRALIA) C.V. Australia
A. C. Nielsen (Holdings) Pty. Limited Australia
A. C. Nielsen Australia Pty. Limited Australia
AGB McNair Holdings Pty. Limited Australia
AGB Research Holdings Pty. Limited Australia
Tart Research Pty. Limited Australia
AGB McNair Pty. Limited Australia
McNair Anderson Associates Pty. Limited Australia
Marketing Insights Pty. Ltd. Australia
Nandette Pty. Limited Australia
Australian Independent Media Data Pty. Limited Australia 50.0
SRG HOLDINGS LIMITED Hong Kong
SRG Management Services Limited Hong Kong
ACNielsen China Ltd. Hong Kong
Shanghai SRG Ltd. China 80.0
Research Consulting Services Ltd. Hong Kong
SRG International (HK) Ltd. Hong Kong
SRG HOLDINGS LIMITED (Continued)
SRG Management Services Limited (Continued)
SRG Research Services (HK) Ltd. Hong Kong
Survey Research Hong Kong Ltd. Hong Kong
Survey Research Asia Pacific Ltd. Hong Kong
Survey Research Taiwan Ltd. Taiwan
Survey Research Group Ltd. Hong Kong
SRG Guangzhou Ltd. China 92.0
Survey Research Group Pte. Ltd. Singapore
SRG Research Canada Ltd. Canada
D.J. Calhoun Marketing & Development Ltd. Canada 86.0
Recherches en Marketing (Quebec) Inc. Canada
P.T. SRI Nielsen Indonesia Indonesia
SRG Japan K.K. Japan
Hankook Research Company Korea 50.0
Survey Research Malaysia Sdn Bhd Malaysia
Target Marketing Promotions Sdn Bhd Malaysia
Consumer Pulse Inc. Philippines
Dealer Pulse Inc. Philippines
Media Pulse Inc. Philippines
Philippine Monitoring Services Inc. Philippines
Research Philippines Unisearch Inc. Philippines
Survey Research Singapore Pte. Ltd. Singapore
Deemar Company Ltd. Thailand
SRG Vietnam Ltd. Vietnam
SRG INTERNATIONAL LTD. New York