| Mount Pleasant High School | - | Varsity | - | 0 | |
| Mount Pleasant High School | - | Varsity | Small | 0 | |
| Mount San Antonio College | - | - | Small | 0 | |
| Mount San Antonio College | - | Junior | Small | 0 | |
| Mount San Antonio College | - | Junior | Small | 0 | |
| Mount Si High School | - | Varsity | Medium | 0 | |
| Mount Si High School | - | Varsity | Small | 0 | |
| Mount Vernon High School | - | Varsity | Medium | 0 | |
| Mount Vernon High School | - | Varsity | Small | 0 | |
| Mount Vernon JH School | - | - | Small | 0 | |
| Mountain Elite | L1 | Junior | - | 0 | |
| Mountain House High School | - | - | Medium | 0 | |
| Mountain Island Charter School | - | Varsity | Small | 0 | |
| Mountain Pointe High School | - | - | Small | 0 | |
| Mountain Pointe High School | - | Varsity | Small | 0 | |
| Mountain Pointe High School | - | Varsity | Small | 0 | |
| Mountain Range High School | - | - | Small | 0 | |
| Mountain Range High School | - | Varsity | Small | 0 | |
| Mountain Range High School | - | Varsity | Small | 0 | |
| Mountain Range High School | - | - | Small | 0 | |
| Mountain Ridge High School | - | Varsity | - | 0 | |
| Mountain Ridge High School | - | Varsity | Small | 0 | |
| Mountain Ridge High School | - | Varsity | Small | 0 | |
| Mountain Ridge High School | - | Varsity | Small | 0 | |
| Mountain Valley Middle School | - | - | Small | 0 | |
| Mountain Valley Middle School | - | - | Small | 0 | |
| Mountain View High School | - | Varsity | Small | 0 | |
| Mountain View High School | - | Junior | - | 0 | |
| Mountain View High School | - | Junior | - | 0 | |
| Mountain View High School | - | Junior | - | 0 | |
| Mountain View High School | - | Varsity | Small | 0 | |
| Mountain View High School | - | - | - | 0 | |
| Mountain View High School | - | Varsity | Small | 0 | |
| Mountain View High School | - | Varsity | Small | 0 | |
| Mountain View High School | - | Junior | Small | 0 | |
| Mountain View High School | - | Junior | Large | 0 | |
| Mountain View High School | - | Varsity | Small | 0 | |
| Mountain View High School | - | Varsity | Small | 0 | |
| Mountain View Stars | L2 | Youth | Small | 0 | |
| Mountain Vista High School | - | Junior | Small | 0 | |
| Mountain Vista High School | - | Junior | Small | 0 | |
| Mountain Vista High School | - | Varsity | Small | 0 | |
| Mountain Vista High School | - | Varsity | Small | 0 | |
| Mountain Vista High School | - | Varsity | Small | 0 | |
| Mountain Vista High School | - | Varsity | Small | 0 | |
| Moxi Athletics | L1 | Junior | Small | 0 | |
| Moxi Athletics | L1 | Senior | - | 0 | |
| MPact Dance Studio | - | Junior | - | 0 | |
| MPact Dance Studio | - | Junior | Small | 0 | |
| MPact Dance Studio | - | Junior | Small | 0 | |
| MPact Dance Studio | - | Mini | Small | 0 | |
| MPact Dance Studio | - | Mini | - | 0 | |
| MPact Dance Studio | - | Mini | Small | 0 | |
| MPact Dance Studio | - | Mini | - | 0 | |
| MPact Dance Studio | - | Senior | Small | 0 | |
| MPact Dance Studio | - | Senior | Small | 0 | |
| MPact Dance Studio | - | Senior | Large | 0 | |
| MPact Dance Studio | - | Senior | Small | 0 | |
| MPact Dance Studio | - | Senior | Small | 0 | |
| MPact Dance Studio | - | Youth | Small | 0 | |
| MPact Dance Studio | - | Youth | Small | 0 | |
| MPact Dance Studio | - | Youth | Small | 0 | |
| MTG Cheer | L1 | Youth | Small | 0 | |
| MTM All-Star Cheerleading | L1 | Senior | Small | 0 | |
| MTV Braunschweig | L4 | U18 | Small | 0 | |
| MTV Braunschweig | L2 | U16 | Small | 0 | |
| Muhlenberg County High School | - | Varsity | Small | 0 | |
| Muhlenberg County High School | - | Varsity | Small | 0 | |
| Muhlenberg High School | - | Varsity | Medium | 0 | |
| Mullen High School | - | Varsity | - | 0 | |
| Mullen High School | - | Varsity | - | 0 | |
| Mullen High School | - | Varsity | Small | 0 | |
| Mullen High School | - | Varsity | Small | 0 | |
| Murphy High School | - | Junior | Small | 0 | |
| Murphy High School | - | Junior | Small | 0 | |
| Murphy High School | - | Varsity | Small | 0 | |
| Murrieta Valley High School | - | Varsity | Small | 0 | |
| Murrieta Valley High School | - | - | - | 0 | |
| Murrieta Valley High School | - | Varsity | Small | 0 | |
| Murrieta Valley High School | - | Varsity | Small | 0 | |
| Murrieta Valley High School | - | Varsity | Small | 0 | |
| Murrieta Valley High School | - | Varsity | Small | 0 | |
| Murrieta Valley High School | - | Varsity | Small | 0 | |
| Muscle Shoals High School | - | Varsity | Medium | 0 | |
| Muscle Shoals High School | - | Varsity | Small | 0 | |
| Muscle Shoals High School | - | Varsity | Small | 0 | |
| Muscle Shoals Middle School | - | Junior | Small | 0 | |
| Muscle Shoals Middle School | - | Junior | Small | 0 | |
| Mustang All Stars | L2 | Junior | Small | 0 | |
| Mustang All Stars | L2 | Junior | - | 0 | |
| Mustang All Stars | L2 | Junior | - | 0 | |
| Mustang Cheer | L1.1 | Mini | Small | 0 | |
| Mustang Cheer All Stars | L1.1 | Mini | - | 0 | |
| Mustang Cheer All Stars | L2 | - | Small | 0 | |
| Mustang Cheer All Stars | L3 | Youth | Small | 0 | |
| Mustang Cheer All Stars | L2.2 | Youth | Small | 0 | |
| Mustang Cheer All Stars | L5 | Senior | Small | 0 | |
| Mustang Cheer All Stars | L3 | U16 | - | 0 | |
| Mustang Cheer All Stars | L4 | Junior | Small | 0 | |
| Mustang Cheer All Stars | L2 | Youth | Small | 0 | |
