It is affiliated with the National Association of Independent Schools, the New York State Coalition for Nonpublic Education and the Council for American Private Education. Founded in 1947, the Association is incorporated under New York State Education Law. It is non-profit and federally tax exempt under IRS ruling. Established originally to protect independent schools from obstructive legislation and regulation, the Association has added substantially to the range of its activities in recent years.
Associate membership is open to certain for profit schools and other allied institutions.