| Marengo-Union E Cons D 165, IL (District) |
| Marenisco School District, MI (District) |
| Marfa ISD, TX (District) |
| Margaretta Local School District, OH (District) |
| Margaretville Central School District, NY (District) |
| Margate City School District, NJ (District) |
| Maria Montessori Academy, UT (PSA) |
| Maria Varisco Rogers Charter School, NJ (District) |
| Mariana Bracetti Academy Cs, PA (PSA) |
| Maricopa County, AZ (ISD) |
| Maricopa County Community College District Dba Gateway Early, AZ (District) |
| Maricopa County Regional District, AZ (District) |
| Maricopa County Regional Special Services District, AZ (District) |
| Maricopa County Sheriffs Office, AZ (District) |
| Maricopa Unified, CA (District) |
