| Academy of Information, Technology and Engineering* | Kimball Union Academy King School* |
| American School of Paris | LaGuardia School for the Performing Arts |
| Berkshire School | Lawrenceville School |
| Blair Academy* | Loomis Chaffee School |
| Blind Brook High School | Marymount School |
| Brunswick School | Masters School* |
| Byram Hills High School | Mercersburg Academy |
| Choate Rosemary Hall* | Middlesex School |
| Colegio Viscondé de Porto Seguro Columbus Academy | Milton Academy |
| Emma Willard School | New Fairfield High School |
| Ethel Walker School | Northfield Mount Hermon School |
| Fairfield Preparatory School | Northwood School |
| Fox Lane High School | Open Lyceum Baar Oscar Romero College |
| Greens Farms Academy* | Phillips Andover * |
| Greenwich Academy* | Phillips Exeter Academy |
| Greenwich Country Day School* | Pomfret School |
| Greenwich High School* | Port Chester High School |
| Hackley School | Rye Country Day School* |
| Harvey School | Rye High School |
| Harvey School* | Sacred Heart Greenwich* |
| Het Amsterdams Lyceum | Salibury School |
| Hopkins School | School Fiorello |
| Hopkins School* | St. Luke’s School* |
| International School of Curitiba | The Gunnery |
| International School of Krakow | The Hewitt School |
| J.M. Wright Technical High School | Westhill High School |
| John Jay High School | Windward School |
| Kildonan School | * Indicates Multiple Matriculations |
Academy of Information, Technology and Engineering
Fairfield Preparatory School
Greens Farms Fairfield
Greenwich Academy
Greenwich Country Day School
Greenwich High School
Hackley School
Harvey School
Het Amsterdams Lyceum
Hopkins School
John Jay High School
Phillips Andover
