SPAIN

• Instituto Nacional de Estadística - INE
• FES - Federación Española de Sociología
• AECPA - Asociación Española de Ciencia Política y de la Administración
• AEDEMO - Asociación Española de Estudios de Mercado, Marketing y Opinión
• ESE - Encuesta Social Europea

AUTONOMOUS COMMUNITIES

• Instituto Aragonés de Estadística
• Instituto de Estadística de Andalucía
• Instituto Galego de Estatística
• Instituto Canario de Estadística
• Instituto de Estadística de la Comunidad de Madrid
• Institut d'Estadística de Catalunya
• Eustat - Euskal Estatistika Erakundea
• Gabinete de prospección sociológica del Gobierno Vasco
• ARGOS - Área de Documentación y Análisis de Datos de la Presidencia de la Generalitat Valenciana

EUROPEAN UNION

• Eurostat
• Mannheimer Zentrum fuer Europaeische Sozialforschung (Alemania)
• Zentralarchiv für Empirische Sozialforschung (Alemania)
• GESIS (IZ, ZA and ZUMA) (Alemania)
• WISDOM - Wiener Institut für Sozialwissen-schaftliche Dokumentation und Methodik (Austria)
• Danmarks statistik (Dinamarca)
• Danish Data Archive (Dinamarca)
• Statistics Finland (Finlandia)
• INSÉÉ - Institut National de la Statistique et des Études Économiques (Francia)
• Statistics Netherlands (Holanda)
• Niwi - Steinmetz Archive (Holanda)
• ISTAT - Istituto Nazionale di Statistica (Italia)
• ADPSS-Sociodata - Archivio Dati e Programmi per le Scienze Sociali (Italia)
• National Statistics (Reino Unido)
• The Data Archive - University of Essex (Formerly ESRC) (Reino Unido)
• CASS - Center for Applied Social Survey, University of Southampton (Reino Unido)
• EDINA - Edinburgh Data and INformation Access, University of Edinburgh (Reino Unido)
• MIDAS - Manchester Information Datasets and Associated Services (Reino Unido)
• NISS - National Information Services and Systems, University of Bath (Reino Unido)
• SOSIG - Social Science Information Gateway, University of Bristol (Reino Unido)
• SSRU - Social Statitics Research Unit, City University (Reino Unido)
• Statistiska Centralbyrån, Sverige (Suecia)
• SSD - Swedish Social Science Data Service (Suecia)

OTHER EUROPEAN COUNTRIES

• ESS - European Social Survey
• ESE - Encuesta Social Europea
• ECPR - European Consortium for Political Research
• SRIS/TARKI - Social Research Informatic Society (Hungría)
• Statistics Norway (SSB) (Noruega)
• Norwegian Social Science Data Services (Noruega)
• SIDOS - Swiss Information and Data Archive Service for the Social Sciences (Suiza)
• State Institute of Statistics (Turquía)

UNITED STATES

• US Bureau of the Census
• US Bureau of Labor Statistics
• US Department of Commerce (STAT-USA)
• NCHS - National Center for Health Statistics
• CIESIN - Consortium for International Earth Science Information Network (Michigan)
• DPLS - Data and Program Library Service (University of Wisconsin)
• ICPSR - Inter-university Consortium for Political and Social Research (University of Michigan)
• IRSS - Institute for Research in Social Science (University of North Carolina)
• ISSR - Social Science Data Archive, UCLA
• NARA - National Archives and Records Administration
• NDACAN- National Data Archive on Child Abuse and Neglect, Cornell
• OPR - Population Index - Office of Population Research (University of Princeton)
• PSID - Panel Study of Income Dynamics (University of Michigan)
• SSDC - Social Sciences Data Collection (University of California)
• The Roper Center for Public Opinion Research (University of Connecticut)
• Northwestern University's American Politics
• HMDC - Harvard-MIT Data Center (University of Harvard)
• DSS - Data and Statistical Services (University of Princeton)
• EDS - Electronic Data Service (University of Columbia)
• Geostat - Geospatial and Statistical Data Center (University of Virginia)

CANADA

• Statistics Canada
• Institut de la statistique du Québec
• IASSIST - Internacional Association of Social Science Information Service & Technology (University of Alberta)
• Library Data Centre (University of Carleton)
• BCIRDC - British Columbia Inter-university Research Data Centre (University of British Columbia)

OTHER COUNTRIES

• INDEC - Instituto Nacional de Estadística y Censos (Argentina)
• Australian Bureau of Statistics (Australia)
• ASSDA - Australian Social Science Data Archive (Australia)
• RSPAS - Research School of Pacific and Asian Studies (Australia)
• IBGE - Instituto Brasileiro de Geografia e Estatistica (Brasil)
• CESOP - Centro de Estudos de Opinião Pública (Brasil)
• ISDC - Israel Social Sciences Data Center, Hebrew University of Jerusalem (Israel)
• Japan's Statistics Bureau (Japón)
• INEGI - Instituto Nacional de Estadística, Geografía e Informática (México)
• Statistics New Zealand (Nueva Zelanda)
• NZSRDA - New Zealand Social Research Data Archive (Nueva Zelanda)
• HSRC - Human Sciences Research Council of South Africa (Sudáfrica)
• INE - Instituto Nacional de Estadística - Bolivia

INTERNATIONAL BODIES

• UNECE - United Nations Economic Commission for Europe. Statistical Division
• EUROSTAT - The Statistical Office of the European Communities.
• OCDE/OECD - Organisation for Economic Co-operation and Development
• CESSDA - Council of European Social Science Data Archives
• NESSTAR - Networked Social Science Tools and Resources
• ISA - International Sociological Association
• IPSA - International Political Science Association
• ESOMAR - The World Association of Research Professionals
• WAPOR - World Association for Public Opinion Research
• ISSP - International Social Survey Programme

OTHER SERVERS

• Revista "Fuentes Estadísticas"
• DPLS - Data and Program Library Service (University of Wisconsin-Madison)
• Statistical Agencies on the Internet
• The World Wide Web Virtual Library: Statistics (University of Florida)
• WWW Virtual Library - Social Sciences
• WWW Virtual Library - Democracy and Population Studies
• WWW Virtual Library - International Affairs Resources
• SOGIG - Social Science Information Gateway
• Political Science Resources
• Social Science Information Technology Server ProGAMMA