This is a list of notable organizations that promote or practice scientific skepticism.
Name (English / local (abbreviation)) | Founded | Region served | Notes |
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Association against Quackery / Vereniging tegen de Kwakzalverij (VtdK) | 1881 | ![]() |
Oldest skeptical organisation.[1] Member of ECSO.[citation needed] |
Association for Skeptical Enquiry (ASKE) | 1997 | ![]() |
Member of ECSO.[2] |
Australian Skeptics | 1980 | ![]() |
|
Center for Inquiry (CFI) | 1991 | ![]() |
Global umbrella organisation based in Amherst, New York. |
Committee for the Advancement of Scientific Skepticism (CASS) | 2010 | ![]() |
Part of Centre for Inquiry Canada. |
Committee for Skeptical Inquiry (CSI), formerly Committee for the Scientific Investigation of Claims of the Paranormal (CSICOP) | 1976 | ![]() |
Part of the Center for Inquiry. |
Committee Para / Comité Para[3] | 1949 | ![]() |
Member of ECSO.[2] Serves Wallonia and Brussels. |
Czech Skeptics Club Sisyfos / Český klub skeptiků Sisyfos (Sisyfos) | 1995 | ![]() |
Member of ECSO.[2] |
Dakshina Kannada Rationalist Association / தட்சிண கன்னட பகுத்தறிவாளர் ஒன்றியம் (DKRA) | 1976 | ![]() |
Member of FIRA. |
The Free Thought / De Vrije Gedachte (DVG) | 1856 | ![]() |
Focuses on atheism/secular humanism.[4] |
Edinburgh Skeptics Society (EdSkeptics) | 2009 | ![]() |
|
European Council of Skeptical Organisations (ECSO) | 1994 | ![]() |
A European umbrella organization, based in Roßdorf, Germany. |
Federation of Indian Rationalist Associations / இந்திய பகுத்தறிவாளர் ஒன்றியங்களின் பேரவை (FIRA) | 1997 | ![]() |
Indian umbrella organisation. |
Freedom From Religion Foundation (FFRF) | 1978 | ![]() |
Focuses on state/church separation, nontheism, and atheism. |
French Association for Scientific Information / Association française pour l’information scientifique (AFIS) | 1968[5] | ![]() |
Member of ECSO.[2] |
German Society for Fighting Quackery / Deutsche Gesellschaft zur Bekämpfung des Kurpfuschertums (DGBK) | 1903 | ![]() |
Dissolved in 1934. |
Glasgow Skeptics | 2009 | ![]() |
|
Good Thinking Society | 2012 | ![]() |
|
Het Denkgelag | 2012 | ![]() |
|
Hungarian Skeptic Society / Szkeptikus Társaság (HSS) | 2006 | ![]() |
Member of ECSO.[2] |
Independent Investigations Group (IIG) | 2000 | ![]() |
|
Indian CSICOP | 19?? | ![]() |
Affiliated with CSI, member of FIRA. |
Indian Rationalist Association (IRA) | 1949 | ![]() |
Member of Rationalist International. |
Irish Skeptics Society | 2002 | ![]() |
Member of ECSO.[2] |
Italian Committee for the Investigation of Claims of the Pseudosciences / Comitato Italiano per il Controllo delle Affermazioni sulle Pseudoscienze (CICAP) | 1989 | ![]() |
Member of ECSO.[2] |
James Randi Educational Foundation (JREF) | 1996 | ![]() |
|
Launceston Skeptics | 2010 | ![]() |
|
Maharashtra Committee for Eradication of Blind Faith / Maharashtra Andhashraddha Nirmoolan Samiti (MANS) | 1989 | ![]() |
Member of FIRA. |
Merseyside Skeptics Society (MSS) | 2009 | ![]() |
|
MTÜ Eesti Skeptik (skeptik.ee) | 2007 | ![]() |
|
New England Skeptical Society (NESS) | 1996 | ![]() |
Fusion of three earlier organisations. |
New Mexicans for Science and Reason (NMSR) | 1990 | ![]() |
|
New Zealand Skeptics[6] (NZ Skeptics) | 1986 | ![]() |
|
Office for Science and Society (OSS) | 1999 | ![]() |
McGill University, Montreal. |
Philippine Atheists and Agnostics Society (PATAS) | 2011 | ![]() |
|
Polish Skeptics Club / Klub Sceptyków Polskich (KSP)[7][8] | 2010 | ![]() |
|
Portuguese Skeptical Community / Comunidade Céptica Portuguesa (COMCEPT) | 2012 | ![]() |
|
Rational Alternative to Pseudoscience – Society for the Advancement of Critical Thinking / Alternativa Racional a las Pseudociencias – Sociedad para el Avance del Pensamiento Crítico (ARP-SAPC) |
1986 | ![]() |
Member of ECSO.[2] |
Rationalist Union / Union Rationaliste | 1930 | ![]() |
|
Richard Dawkins Foundation for Reason and Science (RDFRS) | 2006 | ![]() ![]() |
The American and British branches are independent. |
Science and Popular Enlightenment / Föreningen Vetenskap och Folkbildning (VoF) | 1982 | ![]() |
Member of ECSO.[2] |
Science and Rationalists' Association of India / Bharatiya Bigyan O Yuktibadi Samiti | 1985 | ![]() |
Based in Kolkata, West Bengal. |
SKEPP[9] | 1990 | ![]() |
Member of ECSO.[2] Serves Flanders and Brussels. |
Skepsis ry | 1987 | ![]() |
Member of ECSO.[2] |
Skepsis Foundation / Stichting Skepsis (Skepsis) | 1987 | ![]() |
Member of ECSO.[2] |
Skeptical Circle / Círculo Escéptico (CE) | 2006 | ![]() |
Member of ECSO.[2] |
Skeptic Society / Общество скептиков[10] | 2013[11] | ![]() |
|
Skeptics in the Pub Online | 2020 | ![]() |
|
Society for the Scientific Investigation of Parasciences / Gesellschaft zur wissenschaftlichen Untersuchung von Parawissenschaften (GWUP) | 1987 | ![]() |
Based in Roßdorf, Germany. Member of ECSO.[2] |
The Skeptics Society | 1992 | ![]() |
Globally active, but mainly serves California. |
Young Australian Skeptics (YAS) | 2008 | ![]() |
|
Young Skeptics | 2015 | ![]() |
American after school program. |
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