2023-2024 Academic Year
The ISP proudly partners with school districts and private and independent schools.
| Affton 101 | |
| Al Salam Day School | |
| Andrews Academy | |
| Atlas Public Schools | |
| Brentwood School District | |
| Child of God Lutheran School | |
| City Academy | |
| City Garden Montessori | |
| City of St. Charles School District | |
| Confluence Academies | |
| Epstein Hebrew Academy | |
| Ferguson-Florissant R-II School District | |
| Fox C-6 School District | |
| Francis Howell R-III School District | |
| Franklin County R-II School | |
| Fredericktown School District R-I | |
| Ft. Zumwalt School District | |
| Gateway Science Academy of St. Louis | |
| Granite City CUSD 9 (IL) | |
| Hancock Place School District | |
| Hazelwood School District | |
| Hillsboro R-III School District | |
| Holy Spirit Catholic School | |
| Jackson R-2 School District | |
| Jefferson City School District | |
| Jennings School District | |
| John Burroughs School | |
| KIPP St. Louis | |
| Kirkwood R-VII School District | |
| Ladue School District | |
| Lafayette Preparatory Academy | |
| Lift For Life Academy | |
| Lindbergh Schools | |
| Maplewood-Richmond Heights School District | |
| Maries Co. R-II School District | |
| Mehlville R-IX School District | |
| Miriam School | |
| Momentum Academy | |
| Most Sacred Heart School Eureka | |
| Normandy Schools Collaborative | |
| Northwest R-I School District | |
| Oak Bridge School | |
| Orchard Farm School District | |
| Parkway Schools | |
| Pattonville R-III School District | |
| Pike Co. R-III School District | |
| Ritenour School District | |
| Riverview Gardens School District | |
| Rockwood R-VI School District | |
| School District of Clayton | |
| Sister Thea Bowman Catholic School | |
| South City Catholic Academy | |
| Special School District of St. Louis County | |
| St. Gabriel the Archangel | |
| St. John School (Ellisville) | |
| St. Joseph’s Academy | |
| St. Louis Language Immersion School | |
| St. Louis Public (SLPS) | |
| St. Louis University High School | |
| St. Simon the Apostle Catholic School | |
| Ste. Genevieve Co. R-II | |
| Ste. Genevieve du Bois School | |
| Sullivan School District | |
| The Fulton School | |
| The School District of University City | |
| Troy R-III School District | |
| Union R-XI School District | |
| Valley Park School District | |
| Villa Duchesne and Oak Hill School | |
| Warren Co. R-III School District | |
| Webster Groves School District | |
| Wentzville R-IV School District | |
| Westminster Christian Academy | |
| Winfield R-IV School District |