The club consists of approximately 40 members, with a maximum of 10 students from each year group. Though members of the club were traditionally from Britain's elite social class, the club now has a diverse and international membership. The club was founded by Libby Hart and Emmeline Kuhn in 2001. The club's alumni include a number of well known personalities, including Kate Middleton. Membership of the club is publicly reported; however the club's meetings and activities are confidential.