Clubs

Rochester Area Imaginative Literature Society
Rochester Fantasy Fans
Rochester Speculative Literature Association
Romenna
Rose City Science Circle
RSFA
RSFG
R-SPEC
RTSFS
Sacramento Area Super Science and Fantasy Reading and Study Society
Sacramento Science Fiction Society
Sacramento SF and Fantasy Society
Sacramento SF Association
SADO
SAFFA
SAGA
Salem State College Science Fiction & Fantasy Association
Sampo
San Diego Science Fiction Conventions
San Diego SF & Fantasy Society
San Diego Speculative Fiction Society
San Francisco Lounge Lizards
San Francisco Science Fiction Conventions Inc
San Jose Science Fiction and Fantasy Society
San Jose SF&F Society
SanSFiS
SanSFiS, Inc.
SASSAFRASS
SCA
Scandinavian SF Society
SCC
Science and Fantasy Fiction Association
The Scienceers
Science Fantasy Society
Science Fantasy Writers of America
Science Fiction Advancement Association
Science Fiction and Fantasy Association of New Zealand, Inc.
Science Fiction and Fantasy Club at Virginia Tech
Science Fiction and Fantasy Society
Science Fiction and Fantasy Society of Beloit
Science Fiction Association
Science Fiction Association of Colorado Springs
Science Fiction Association of Victoria
Science Fiction Circle
Science Fiction Cirklen
Science Fiction Club of London
Science Fictioneers
Science Fiction Fangroup's Association of Nippon
Science Fiction & Fantasy Club of Wayne State College
Science Fiction Fantasy Federation
Science Fiction & Fantasy Society
Science Fiction & Fantasy South Africa
Science Fiction Foundation
Science Fiction Group
Science Fiction League
Science Fiction League of Iowa Students
Science Fiction London
Science Fiction Model Builders' Association
Science Fiction Poets' Guild
Science Fiction Research Association
Science Fiction Society of Northern New Jersey
Science Fiction South Africa
Science Fiction Writers of America
Scientifiction Association for Boys
Scifan
Sciffy
SCIFI
Sci-Fi
Sci Fi-Club
Sci-Fi Soc
SCUM
Seattle Worldcon Organizing Committee
Second Fandom
Second Foundation
(Second) Futurian Society of New York
Semi-Pro Writers and Artists Organization
SF3
SFA
SFAA
S F A B C
SFAN
SFC
SFCC
SFCD
SFCL
SFCoL
SFF
SFFan
SFFANZ
SFG
SF Group
SFL
SFLIS
SFMBA
SFOHA
SFS
SFSA
SFSF
SFSFC
SFSFS
SFSNNJ
SFW
SFWA
SFWPA
Shada
Sheffield University Science Fiction and Astronomical Society
Sheffield University Union SF&F Association
Shiny Garden
Shire Society
Shortfastalkinghyperfandom
SHSFG
Simon Fraser University Science Fiction Society
SI/ASFA
SIU Science Fiction Society
Six Of One
Slan Slum
SLI
Smith College Science Fiction Club
Smith Science Fiction and Fantasy Society
SNAFFU
Society for Creative Anachronism
Society for Elvish Studies
Society for Promotion of Fannish Interests Inc
Society for the Prevention of Wire Staples in Science Fiction Magazines
Solarians
Solaroid Club
Solaroids
Solihull SF Group
Some Sort of Medieval Elvish Society I Think
Sons of Earth
Sons of the Sand
Sorcerers, Rumrunners, and Paraihs Ltd.
Southampton University Science Fiction Society
South Australian Doctor Who Fan Club
Southern Arizona SF Association
Southern California Institute For Fannish Interests
Southern Circle
Southern Cross Futurian Association
Southern Fandom Confederation
Southern Fandom Group
Southern Nevada Area Fantasy Fiction Union
Southern Nevada Science Fiction Foundation
Southern Pennsylvania Science Fiction Association
Southfarthing
Southfarthing Fellowship
South Hants Science Fiction Group
South Virginia SF Association
Southwest Association of Fans
Southwest Fantasy Foundation
South West Texas State University Science Fiction and Fantasy Society
Spaced Out
Spacehounds of the IPC
Space-Time Continuum
Spectators
Speculative Literature Foundation
SpockSoc
Sproutlore
SPWAO
SPWSSTFM
SRPL
SSFF
SSFFS
SSMESIT
STAC
Stamford, CT SFL
STARbase Tulsa
Stardust Society
Starforge
Star One
Starship Mawson
Star Trek Welcomittee
Star Walking
State Organizations
Stella Nova Science Fiction and Fantasy Club
Stellaris SF Club
STF League of Indiana
Stilyagi Air Corps
St. Louis SF Society
St Louis Tolkien Society
Stockholm Tolkien Society
Stone Hill Science Fiction Association
Stories for Students
Stourbrudge and District SF Circle
Stourbridge Circle
Stranger Club
Strangers
Student Conventioneers of UMass
SubOrbital
Subspace-620
Surrey Circle
SUSFA
Sutherland Shire Doctor Who Fan Club
SUTS
SWAF
Swansea SF Group
Swarthmore Warders of Imaginative Literature
SWiGGLe
SWIL
SWOC
Sword and Sorcery Society
SWTSU SFFS
Sydney Science Fiction Foundation
Sydney Science Fiction League
Sydney University Quidditch Society
Sydney University Science Fiction Association
Sydney University Tolkien Society
Syracuse University Science Fiction Society
Taruithorn
Tasmanian Science Fiction Association
TCSFL
TechSFsoc
Tennessee Fictioneers
Tennesse Fictioneers
Terminal Beach Club
Terran League
The Terrans
Terrestrial Fantascience Guild
Tesseract
TESSFA
Texas Speculative Fiction Association
TF
TFG
The Australian Babylon 5 Fan Club
The Blackguards
The Blue Box Companions of Birmingham
The British Teenage Fantasy and Science Fiction Society
The Burrahobbits
The Chicago Science Fiction League
The Chicago Science Fiction Society
The Circle of Janus Science Fiction and Fantasy Fan Club
The City of Small Gods
The Committee for the Political Advancement of Science Fiction
The Council of Westmarch
The "Cult Fiction" Society
The Dalek Dilemma Doctor Who Fan Club
The Dark Side
The Derelict Insurgents
The Eddoreans
The Elvish Linguistic Fellowship
The Empire State Science Fiction Association
The Fanoclasts
The Federation of Science Fiction Fan Groups of Japan
The Fellowship of the Ring
The Four Flushers
The GANG
The Ganglion of Four
The Grey Havens
The Hell Pavers
The Inkings Society of Queensland
The Inner Ring