HMC (the Headmasters' & Headmistresses' Conference) is a professional association of Heads of many of the world's leading independent schools. It has provided support and advice to Heads for over 100 years and is the oldest and most influential association of its kind in the English speaking world. HMC’s membership includes the Heads of co-educational schools, single sex schools and diamond schools where both single sex and co-educational teaching takes place. The association also includes Heads of schools with a particular religious affiliation or with dedicated provision for children with special educational needs. Use the search facility on the site to find HMC schools near London or worldwide.