The NJAIS is a member of the National Association of Independent Schools.
| Academy of Saint Elizabeth | | All Saints Episcopal Day School |
| Apple Montessori School |
| Blair Academy |
| Chapin School Princeton |
| Chatham Day School |
| Christina Seix Academy |
| Community High School |
| Community School, Inc. Lower Division |
| Craig School, The |
| Darul Arqam School |
| Delbarton School |
| Doane Academy |
| Dwight-Englewood School |
| Edgarton Academy, Inc. |
| Elisabeth Morrow School, The |
| Ellison School, The |
| Far Brook School |
| Far Hills Country Day School |
| Foxman Torah Institute |
| French American Academy |
| French-American School of Princeton |
| Friends School Mullica Hill |
| Gill St. Bernard's School |
| Golda Och Academy |
| Gottesman RTW Academy |
| Haddonfield Friends School |
| Hilltop Country Day School |
| Hovnanian School, Inc. |
| Hudson School, The |
| Hun School of Princeton, The |
| Immaculate Heart Academy |
| Joseph Kushner Hebrew Academy |
| Kellman Brown Academy |
| Kent Place School |
| Lacordaire Academy |
| Laurel School of Princeton, The |
| Lawrenceville School, The |
| Lewis School of Princeton, The |
| Montclair Cooperative School |
| Montclair Kimberley Academy, The |
| Moorestown Friends School |
| Morristown-Beard School |
| Mount Saint Dominic Academy |
| Mount Saint Mary Academy |
| Mustard Seed School |
| Newark Academy |
| Newark Boys Chorus School |
| Newgrange School |
| Noor-Ul-Iman School |
| Oak Hill Academy |
| Oak Knoll School of the Holy Child |
| Oratory Preparatory School, The |
| Peck School, The |
| Peddie School |
| Pennington School, The |
| Pingry School, The |
| Princeton Academy of the Sacred Heart |
| Princeton Day School |
| Princeton Friends School |
| Princeton Junior School |
| Princeton Montessori School |
| Purnell School |
| Ranney School |
| Red Oaks School, The |
| Rumson Country Day School, The |
| Rutgers Preparatory School |
| Saddle River Day School |
| Saint Dominic Academy |
| Saint Peter's Preparatory School |
| Sisters Academy of New Jersey, The |
| Solomon Schechter Day School of Greater Monmouth County |
| Solomon Schechter Day School of Bergen County |
| St. Augustine Preparatory School |
| St. Benedict's Preparatory School |
| Stevens Cooperative School |
| Stuart Country Day School of the Sacred Heart |
| Trinity Hall |
| Villa Victoria Academy |
| Villa Walsh Academy |
| Village School, The |
| Waldorf School of Princeton, The |
| Wardlaw-Hartridge School, The |
| Westfield Friends |
| Willow School, The |
| Winston School, The |
| Woodland Country Day School |