- San Francisco Regional Mensa www.sfmensa.org How to join Mensa Introduction Scheduled events Contact info Info for members Members' pages American Mensa Mensa International San Francisco Regional Mensa (SFRM) is a chapter of Mensa, the international society for people who score in the top 2% on IQ tests. The goals of the group are to provide and encourage social and intellectual interaction.mensa.best.vwh.net