Consulta Mitofsky
www.consulta.com.mx
DATA-Opinión Pública y Mercados
www.dataopm.net
Ipsos-Bimsa
www.ipsos-bimsa.com.mx
Parametría
www.parametria.com.mx
Transparencia Mexicana
www.transparenciamexicana.org.mx
Afrobarometer
www.afrobarometer.org
American National Election Studies (ANES)
www.umich.edu/~nes/
Asian Barometer
eacsurvey.law.ntu.edu.tw/
Eurobarometer
ec.europa.eu/public_opinion/index_en.htm
European Social Survey
www.europeansocialsurvey.org
International Social Survey Programme
www.issp.org
Ipsos Mori
www.ipsos-mori.com
Latin American Public Opinion Project (Universidad de Vanderbilt)
http://www.vanderbilt.edu/lapop/
Latinobarómetro
www.latinobarometro.org
New Democracies Barometer
www.abdn.ac.uk/cspp/
World Values Survey
www.worldvaluessurvey.org