List of scientific skepticism organizations

This is a list of notable organizations that promote or practice scientific skepticism.

Name (English / local (abbreviation))FoundedRegion servedNotes
Association against Quackery / Vereniging tegen de Kwakzalverij (VtdK)1881 NetherlandsOldest skeptical organisation. Member of ECSO.
Association for Skeptical Enquiry (ASKE)1997 United KingdomMember of ECSO.
Australian Skeptics1980 Australia
Center for Inquiry (CFI)1991 WorldGlobal umbrella organisation based in Amherst, New York.
Committee for the Advancement of Scientific Skepticism (CASS)2010 CanadaPart of Centre for Inquiry Canada.
Committee for Skeptical Inquiry (CSI), formerly Committee for the Scientific Investigation of Claims of the Paranormal (CSICOP)1976 United StatesPart of the Center for Inquiry.
Committee Para / Comité Para1949 BelgiumMember of ECSO. Serves Wallonia and Brussels.
Czech Skeptics Club Sisyfos / Český klub skeptiků Sisyfos (Sisyfos)1995 Czech RepublicMember of ECSO.
Dakshina Kannada Rationalist Association / தட்சிண கன்னட பகுத்தறிவாளர் ஒன்றியம் (DKRA)1976 IndiaMember of FIRA.
The Free Thought / De Vrije Gedachte (DVG)1856 NetherlandsFocuses on atheism/secular humanism.
Edinburgh Skeptics Society (EdSkeptics)2009 United Kingdom
European Council of Skeptical Organisations (ECSO)1994 EuropeA European umbrella organization, based in Roßdorf, Germany.
Federation of Indian Rationalist Associations / இந்திய பகுத்தறிவாளர் ஒன்றியங்களின் பேரவை (FIRA)1997 IndiaIndian umbrella organisation.
Freedom From Religion Foundation (FFRF)1978 United StatesFocuses on state/church separation, nontheism, and atheism.
French Association for Scientific Information / Association française pour l’information scientifique (AFIS)1968 FranceMember of ECSO.
German Society for Fighting Quackery / Deutsche Gesellschaft zur Bekämpfung des Kurpfuschertums (DGBK)1903 GermanyDissolved in 1934.
Glasgow Skeptics2009 United Kingdom
Good Thinking Society2012 United Kingdom
Het Denkgelag2012 Belgium
Hungarian Skeptic Society / Szkeptikus Társaság (HSS)2006 HungaryMember of ECSO.
Independent Investigations Group (IIG)2000 United States
Indian CSICOP19?? IndiaAffiliated with CSI, member of FIRA.
Indian Rationalist Association (IRA)1949 IndiaMember of Rationalist International.
Irish Skeptics Society2002 IrelandMember of ECSO.
Italian Committee for the Investigation of Claims of the Pseudosciences / Comitato Italiano per il Controllo delle Affermazioni sulle Pseudoscienze (CICAP)1989 ItalyMember of ECSO.
James Randi Educational Foundation (JREF)1996 United States
Launceston Skeptics2010 Australia
Maharashtra Committee for Eradication of Blind Faith / Maharashtra Andhashraddha Nirmoolan Samiti (MANS)1989 IndiaMember of FIRA.
Merseyside Skeptics Society (MSS)2009 United Kingdom
MTÜ Eesti Skeptik (skeptik.ee)2007 Estonia
New England Skeptical Society (NESS)1996 United StatesFusion of three earlier organisations.
New Mexicans for Science and Reason (NMSR)1990 United States
New Zealand Skeptics (NZ Skeptics)1986 New Zealand
Office for Science and Society (OSS)1999 CanadaMcGill University, Montreal.
Philippine Atheists and Agnostics Society (PATAS)2011 Philippines
Polish Skeptics Club / Klub Sceptyków Polskich (KSP)2010 Poland
Portuguese Skeptical Community / Comunidade Céptica Portuguesa (COMCEPT)2012 Portugal
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 SpainMember of ECSO.
Rationalist Union / Union Rationaliste1930 France
Richard Dawkins Foundation for Reason and Science (RDFRS)2006 UK &  USThe American and British branches are independent.
Science and Popular Enlightenment / Föreningen Vetenskap och Folkbildning (VoF)1982 SwedenMember of ECSO.
Science and Rationalists' Association of India / Bharatiya Bigyan O Yuktibadi Samiti1985 IndiaBased in Kolkata, West Bengal.
SKEPP1990 BelgiumMember of ECSO. Serves Flanders and Brussels.
Skepsis ry1987 FinlandMember of ECSO.
Skepsis Foundation / Stichting Skepsis (Skepsis)1987 NetherlandsMember of ECSO.
Skeptical Circle / Círculo Escéptico (CE)2006 SpainMember of ECSO.
Skeptic Society / Общество скептиков2013 Russia
Skeptics in the Pub Online2020 United Kingdom / World
Society for the Scientific Investigation of Parasciences / Gesellschaft zur wissenschaftlichen Untersuchung von Parawissenschaften (GWUP)1987 D-A-CHBased in Roßdorf, Germany. Member of ECSO.
The Skeptics Society1992 United StatesGlobally active, but mainly serves California.
Young Australian Skeptics (YAS)2008 Australia
Young Skeptics2015 USAmerican after school program.