| Monte Vista C-8, CO (District) |
| Montebello Unified, CA (District) |
| Montecito Union Elementary, CA (District) |
| Montello School District, WI (District) |
| Monterey County Office of Education, CA (District) |
| Monterey ESA, CA (ISD) |
| Monterey Peninsula Unified, CA (District) |
| Montesano School District, WA (District) |
| Montessori Academy Inc., AZ (District) |
| Montessori Charter School Of Flagstaff Inc., AZ (PSA) |
| Montessori Day Public Schools Chartered Inc., AZ (PSA) |
| Montessori Education Centre Charter School, AZ (PSA) |
| Montessori Elementary School, NM (PSA) |
| Montessori For All, TX (PSA) |
| Montessori House Inc., AZ (District) |
