Since 2001, alumni of IMTC-Chennai have set-up 40 Montessori schools in Tamil Nadu and today, many have grown to become high schools
| School Name | Area |
| Aalam Montessori House of Children | Coimbatore |
| Aalaya Academy | Tirupur |
| Aakam Montessori Learning Centre | Chennai |
| Adhyshiv Interntional Montessori School | Chennai |
| Adithya Academy | Tirupur |
| Advaitha Academy | Tirupur |
| Aroha Montessori School | Chennai |
| Bhodhi Montessori | Karur |
| Blooming Buds House Of Children. | Dindugal |
| Bodhana Montessori House of Children | Chennai |
| Ceedee's Foundation School | Erode |
| C S International School | Dharmapuri |
| Chisel Montessori School | Chennai |
| Darwin Montessori School | Chennai |
| Forest Hill Academy | Pollachi |
| Iyal Montessori | Chennai |
| JRK Global School | Chennai |
| Kalpagam Montessori Resource Centre | Marthandam |
| Kalpavrikshalaya | Chennai |
| Kalpavriksh Montessori Community School | Chennai |
| Kutti Yaanaigal | Hosur |
| Little Me Montessori | Chennai |
| School Name | Area |
| Maharishi Vidya Mandir | Chennai |
| Mind’s Eye (After School) | Chennai |
| My Montessori School | Chennai |
| Nachiyar Patashala | Tirupur |
| Ninos Montessori School | Salem |
| Nishta Montessori School | Chennai |
| Sarvvam House of Children | Coimbatore |
| Samskara Academy | Coimbatore |
| Scholars Academy | Chennai |
| Senthil Public School | Salem |
| Sharanalaya Montessori School | Chennai |
| Sishya Academy | Cumbum |
| Sprouts Montessori | Chennai |
| Sudar Montessori | Chennai |
| Thalir | Coimbatore |
| The Pupil Saveetha Eco School | Chennai |
| Third Environment Montessori Preschool | Chennai |
| Vel International Public School | Coimbatore |
| Vidyarpana Montessori School | Kinathukadavu |
| Vriksha Montessori | Coimbatore |
| Vriksha Montessori International | Salem |
| Vruksha Montessori House of Children | Chennai |
