District of Columbia
|
| Aidan Montessori School |
National Child Research Center |
Beauvoir, the National Cathedral
Elementary School |
National Presbyterian School |
| Bishop John T. Walker School for Boys |
Parkmont School |
|
Capitol Hill Day School
|
The River School |
| Edmund Burke School |
Sheridan School |
| The Field School |
Sidwell Friends School |
| Georgetown Day School |
St. Albans School |
| Georgetown Visitation Day School |
St. Anselm's Abbey School |
| Gonzaga College High School |
St. Columba's Nursery School |
Milton Gottesman Jewish Primary School
of the Nation’s Capital |
St. John's College High School |
| The Lab School of Washington |
St. Patrick's Episcopal Day School |
| Little Folks School |
The Washington School for Girls |
| Lowell School |
Washington International School |
| Maret School |
Washington Jesuit Academy |
| National Cathedral School |
|
Maryland
|
| The Academy of the Holy Cross |
The Harbor School |
|
Alef Bet Montessori School
|
The Heights School |
| Barrie School |
Holton-Arms School |
| Bishop McNamara High School |
Landon School |
| Bullis School |
Mater Dei School |
| Butler Montessori |
McLean School |
| Charles E. Smith Jewish Day School |
The Nora School |
| Concord Hill School |
Norwood School |
| Connelly School of the Holy Child |
The Primary Day School |
| The Diener School |
Sandy Spring Friends School |
| Evergreen School |
Sidwell Friends (Lower) School |
| Friends Community School |
St. Andrew's Episcopal School |
| Georgetown Preparatory School |
Stone Ridge School of the Sacred Heart |
| German International School Washington, D.C. |
The Tidewater School |
| Grace Episcopal Day School |
The Woods Academy |
| Green Acres School |
Washington Episcopal School |
| |
Washington Waldorf School |
Virginia
|
| Browne Academy |
The Hill School |
| Burgundy Farm Country Day School |
The Langley School |
| Commonwealth Academy |
Loudoun Country Day School |
| Congressional School |
The Madeira School |
| Episcopal High School |
Oakwood School |
| Flint Hill School |
The Potomac School |
| Foxcroft School |
St. Stephen's and St. Agnes School |
| Grace Episcopal School |
Westminster School |
| Green Hedges School |
|
