1960; Pittcon; Pittsburgh PA
1962; Chicon III; Chicago IL
1963; Discon; Washington DC
1974; Discon 2; Washington DC
1975; Aussiecon; Melbourne, Australia
1979; Seacon '79; Brighton, England
1980; Noreascon 2; Boston MA
1981; Denvention 2; Denver CO
1982; Chicon IV; Chicago IL
1983; Constellation; Baltimore MD
1984; L.A.Con II; Anaheim CA
1985; Aussiecon 2; Melbourne, Australia
1986; Confederation; Atlanta GA
1987; Conspiracy; Brighton, England
1988; Nolacon 2; New Orleans LA
1989; Noreascon 3; Boston MA
1990; ConFiction; Den Haag, The Netherlands
1991; Chicon V; Chicago IL
1992; Magicon; Orlando FL
1993; ConFrancisco; San Francisco CA
1994; Conadian; Winnipeg MB
1995; Intersection; Glasgow, Scotland
1996; L.A.Con III; Anaheim CA
1997; LoneStarCon 2; San Antonio TX
1998; Bucconeer; Baltimore MD
1999; Aussiecon 3; Melbourne, Australia
2000; Chicon 2000; Chicago IL
2001; The Millennium Philcon; Philadelphia PA
2002; ConJosé; San José CA
2003; Torcon 3; Toronto ON
2004; Noreascon 4; Boston MA
2005; Interaction; Glasgow, Scotland
2006; L.A.Con IV; Anaheim CA
2007; Nippon 2007; Yokohama, Japan
2008; Denvention 3; Denver CO
2009; Anticipation; Montreal QB
2010; Aussiecon 3; Melbourne, Australia
2011; Renovation; Reno NV
2012; Chicon 7; Chicago IL