Clients served since 2008
- Agnes Irwin School (Grades K-12; Pennsylvania)
- American College ARCUS (Grades 8-12; Bulgaria)
- American School of Guatemala (Grades PK-12)
- Bishop Brady High School (Grades 9-12; New Hampshire)
- Brillantmont International School (Grades 7-12; Switzerland)
- Camp O-AT-KA (Boys' summer camp founded in 1906; Maine)*
- Canadian International School (Grades PK-12; India)
- Chinese American International School (Grades PK-8; California)*
- Colegio Interamericano de Guatemala (Grades PK-12)*
- The Common School (Grades K-8; Massachusetts)*
- Foothill Country Day School (Grades PK-8; California)*
- Glen Urquhart School (Grades K-8; Massachusetts)*
- Hillside School (Grades 5-8; Massachusetts)*
- International School of Krakow (Grades PK-12; Poland)
- Kents Hill School (Grades 9-12; Maine)*
- Kingsley Montessori School (Grades PK-6; Massachusetts)
- La Lumiere School (Grades 9-12; Indiana)
- Marshall School (Grades 5-12; Minnesota)*
- Oak Meadow Montessori School (Grades K-8; Massachusetts)*
- Seneca Academy (Grades K-12; New York)*
- Sequoyah School (Grades PK-8; California)
- Shady Side Academy (Grades PK-12; Pennsylvania)*
* Indicates a Head of School/Director Search