| Abington Friends School | Philadelphia, PA |
| Annie Wright School | Tacoma, WA |
| Archer School | Los Angeles, CA |
| Atlanta Girls School | Atlanta, GA |
| Ashley Hall School | Charleston, SC |
| Blessed Sacrament Academy | San Antonio, TX |
| Bishop O'Dowd School | Oakland, CA |
| Calvert School | Baltimore, MD |
| Campbell Hall School | North Hollywood, CA |
| Chinese American School | San Francisco, CA |
| Columbus School For Girls | Columbus, OH |
| Convent of the Sacred Heart | New York, NY |
| Elmwood School | Ottawa, Canada |
| Farbrook School | Far Hills, NJ |
| Fenton Public Schools | Fenton, MI |
| Forest Ridge School | Bellevue, WA |
| Fountain Valley School | Colorado Springs, CO |
| Gardner Carney Leadership Institute | Colorado Springs, CO |
| Garrison Forest | Owings Mills, MD |
| Greenwich Academy | Greenwich, CT |
| Hockaday School | Dallas, TX |
| Idyllwild School of the Arts | Idyllwild, CA |
| International School of the Netherlands | Amsterdam, Netherlands |
| Johnson Foundation | Racine, WI |
| Kentucky Country Day | Louisville, KY |
| King's School | Seattle, WA |
| King's Boys School | Auckland, NZ |
| Laurel School | Shaker Heights, OH |
| Louise S. McGehee School | New Orleans, LA |
| Northwest School | Seattle, WA |
| Orchard House School | Richmond, VA |
| Oaks School | Los Angeles, CA |
| Parent Talk, Inc. | Needham, MA |
| Pingree School | South Hampton, MA |
| PS#1 | Hollywood, CA |
| Pymble Ladies College | Sydney, Australia |
| Red Oak School | Morristown, NJ |
| Rivers School | Weston, MA |
| Roland Park School | Baltimore, MD |
| Sacred Hearts Schools | Honolulu, HI |
| Salesmanship Club | Dallas, TX |
| Seattle Girls School | Seattle, WA |
| Shady Side Academy | Pittsburgh, PA |
| Shorecrest School | St. Petersburg, FL |
| St. Anne's School | Annapolis, MD |
| St. James School | Corpus Christi, TX |
| St. Mary's School | Raleigh, NC |
| Tarrant County Challenge | Fort Worth, TX |
| Trafalgar Castle School | Whitby, ON |
| Ursuline Academy | Dallas, TX |
| Valley Montessori | Livermore, CA |
| Webb School | Knoxville, TN |
