* Association of Christian Schools International (ACSI)* Canadian Association of Independent Schools (CAIS)* Christian Schools International (CSI)* European Council of International Schools (ECIS)* Independent Schools Association of Southern Africa (ISASA)* National Association of Independent Schools (NAIS) (United States)* UK Independent Schools Council* Scottish Council of Independent Schools (SCIS)* National Foundation for Promotion & Protection of Private Education in India* Private School GuidePrivate School Statistics* Canadian Educational Standards Institute (CESI)* Independent Education Trends 2008 (ISN)* National Center for Education Statistics (NCES) (United States)* Want boys to do better in school?
----* European Council of International Schools (ECIS)* Международная ассоциация христианских школ (ACSI)* Christian Schools International (CSI)* National Association of Independent Schools (NAIS) (United States)* UK Independent Schools Council* Canadian Association of Independent Schools (CAIS)* Verband Deutscher Privatschulverbände* National Foundation for Promotion & Protection of Private Education in India* Independent Schools Association of Southern Africa (ISASA)