Alabama

• Indian Springs School

Arizona

• The Orme School

California

• The Athenian School
• Bakersfield Christian High School
• Cathedral Catholic High School
• Idyllwild Arts Academy
• Midland School
• Santa Catalina School
• Stevenson School
• The Thacher School
• Avon Old Farms School
• The Webb Schools

Connecticut

• Apex International Education Partners
• Academy of the Holy Family
• Avon Old Farms School
• Canterbury School
• Cheshire Academy
• Choate Rosemary Hall
• The Ethel Walker School
• Forman School
• The Frederick Gunn School
• The Hotchkiss School
• Indian Mountain School
• Kent School
• The Loomis Chaffee School
• Marianapolis Prep School
• The Marvelwood School
• Miss Porter’s School
• Pomfret School
• Putnam Science Academy
• Rectory School
• Rumsey Hall School
• Salisbury School
• St. Thomas More
• Suffield Academy
• The Taft School
• The W. L. Gilbert Trust
• Westminster School
• Woodstock Academy

Delaware

• St. Andrew’s School

Florida

• The Bolles School
• Diocese of Orlando
• Global Sports Resorts LLC
• Montverde Academy
• Saint Andrew’s School

Georgia

• Darlington School

Hawaii

• Iolani School

Illinois 

• Lake Forest Academy

Indiana

• Culver Academies

Kansas

• Maur Hill-Mount Academy

Maine

• Carrabassett Valley Academy
• Foxcroft Academy
• Fryeburg Academy
• George Stevens Academy
• Gould Academy
• Hebron Academy
• Hyde School
• Kents Hill School
• Lincoln Academy
• Maine Central Institute
• Washington Academy

Maryland

• Garrison Forest School
• Oldfields School

Massachusetts 

• Applewild School
• The Bement School
• Brimmer and May School
• Brooks School
• Buxton School
• Cambridge School of Weston
• CATS Academy
• Chapel Hill – Chauncy Hall School
• Concord Academy
• Cushing Academy
• Dana Hall School
• Deerfield Academy
• Eaglebrook School
• Fay School
• The Fessenden School
• The Governor’s Academy
• Groton School
• Hillside School
• Lawrence Academy
• Lexington Christian Academy
• Middlesex School
• Milton Academy
• Miss Hall’s School
• Northfield Mt. Hermon School
• Phillips Academy – Andover
• St. Mark’s School
• Stoneleigh-Burnham School
• Tabor Academy
• Thayer Academy
• Walnut Hill School for the Arts
• Wilbraham & Monson Academy
• The Williston Northampton School
• The Winchendon School
• Worcester Academy

Michigan

• Cranbrook Schools
• Everest Academy
• Interlochen Arts Academy
• St. Mary’s Preparatory School

Minnesota 

• Hillcrest Lutheran Academy
• Saint John’s Preparatory School

Missouri 

• The Barstow School

Nebraska

• Mount Michael Benedictine School

New Hampshire

• Brewster Academy
• Cardigan Mountain School
• Dublin School
• High Mowing School
• Holderness School
• Kimball Union Academy
• New Hampton School
• Phillips Exeter Academy
• Proctor Academy
• St. Paul’s School
• Tilton School
• Wolfeboro Camp School

New Jersey

• Blair Academy
• The Lawrenceville School
• Peddie School

New Mexico

• Armand Hammer United World College of the American West

New York

• The Albany Academy
• Darrow School
• Emma Willard School
• Millbrook School
• Northwood School
• Ross School
• The Masters School
• The Storm King School
• Trinity-Pawling School

North Carolina

• The Asheville School
• Saint Mary’s School

Ohio

• Gilmour Academy
• Grand River Academy
• Spire Academy
• Western Reserve Academy

Oregon

• Oregon Episcopal School

Pennsylvania

• Academy of the New Church
• Church Farm School
• George School
• GoStudents LLC
• Grier School
• The Hill School
• The Kiski School
• Mercersburg Academy
• Perkiomen School
• Shady Side Academy
• Solebury School
• Valley Forge Military Academy
• Westtown School

Rhode Island

• St. George’s School

Tennessee

• Baylor School
• McCallie School

Texas

• The Brook Hill School
• The Hockaday School
• North Central Texas Academy
• San Marcos Academy
• SIT Education International LLC
• St. Stephen’s Episcopal School

Vermont

• Green Mountain Valley School
• Greenwood School
• Lyndon Institute
• The Putney School
• St. Johnsbury Academy
• Stratton Mountain School
• Vermont Academy

Virginia

• Blue Ridge School
• Episcopal High School
• Fork Union Military Academy
• Foxcroft School
• St. Anne’s-Belfield School
• Woodberry Forest School

Wisconsin

• St. Lawrence Seminary