The Ten Schools Admission Organization was established in 1966 and comprises
Choate Rosemary Hall
Choate Rosemary Hall (often known as Choate; ) is a private, co-educational, college-preparatory boarding school in Wallingford, Connecticut, United States. Choate is currently ranked as the second best boarding school and third best private hig ...
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Deerfield Academy
Deerfield Academy is an elite coeducational preparatory school in Deerfield, Massachusetts. Founded in 1797, it is one of the oldest secondary schools in the United States. It is a member of the Eight Schools Association, the Ten Schools Admissi ...
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The Hill School
The Hill School (commonly known as The Hill) is a coeducational preparatory boarding school located on a campus in Pottstown, Pennsylvania, about northwest of Philadelphia. The Hill is part of the Ten Schools Admissions Organization (TSAO). ...
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Hotchkiss School
The Hotchkiss School is a coeducational preparatory school in Lakeville, Connecticut, United States. Hotchkiss is a member of the Eight Schools Association and Ten Schools Admissions Organization. It is also a former member of the G30 Schools ...
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Lawrenceville School
The Lawrenceville School is a coeducational preparatory school for boarding and day students located in the Lawrenceville section of Lawrence Township, in Mercer County, New Jersey, United States. Lawrenceville is a member of the Eight Scho ...
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Loomis Chaffee School
The Loomis Chaffee School (; LC or Loomis) is a selective independent, coeducational, college preparatory school for boarding and day students in grades 9–12, including postgraduate students, located in Windsor, Connecticut, seven miles north ...
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Phillips Academy Andover
("Not for Self") la, Finis Origine Pendet ("The End Depends Upon the Beginning") Youth From Every Quarter Knowledge and Goodness
, address = 180 Main Street
, city = Andover
, state = Ma ...
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Phillips Exeter Academy
(not for oneself) la, Finis Origine Pendet (The End Depends Upon the Beginning) gr, Χάριτι Θεοῦ (By the Grace of God)
, location = 20 Main Street
, city = Exeter, New Hampshire
, zipcode ...
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St. Paul's School, and
Taft School
The Taft School is a private, coeducational school located in Watertown, Connecticut, United States. It teaches students in 9th through 12th grades and post-graduates.
About three-quarters of Taft's roughly 600 students live on the school's ...
. These college preparatory institutions cooperate in their outreach to prospective students.
Educational institutions established in 1966
Preparatory schools in the United States