Ten Schools Admissions Organization
The Ten Schools Admissions Organization was established in 1966 and comprises Choate Rosemary Hall, Deerfield Academy, The Hill School, Hotchkiss School, Lawrenceville School, Loomis Chaffee School, Phillips Academy Andover, Phillips Exeter Academy, St. Paul's School, and Taft School.
"Founded more than 45 years ago on the basis of a number of common goals and traditions, the Ten Schools Admission Organization is a group of distinguished college preparatory institutions that cooperate in their outreach to prospective students and their families."
- "A History of Commitment". tenschools.org.