| Chiles High School | - | Varsity | Large | 0 | | |
| Chisholm Trail High School | - | Varsity | Large | 0 | | |
| Chisholm Trail High School | - | Varsity | Large | 0 | | |
| Christ Presbyterian Academy | - | Varsity | Large | 0 | | |
| CHUO CHEER DANCE TEAM | - | Mini | Large | 0 | | |
| Church Hill Middle School | - | - | Large | 0 | | |
| Churchill High School | - | Varsity | Large | 0 | | |
| Churchill High School | - | Varsity | Large | 0 | | |
| Churchill High School | - | Varsity | Medium | 0 | | |
| Ciclon All Stars Elite | L5 | International Open | Large | 0 | | |
| Cienega High School | - | - | Large | 0 | | |
| Cinco Ranch High School | - | Varsity | Large | 0 | | |
| Citrus Valley High School | - | - | - | 0 | | |
| Citrus Valley High School | - | Varsity | Large | 0 | | |
| Citrus Valley High School | - | Junior | Large | 0 | | |
| City of Doral | L4.2 | - | - | 0 | | |
| City of Doral | L2.1 | - | - | 0 | | |
| City of Doral | L1 | - | Large | 0 | | |
| Claiborne High School | - | Varsity | Large | 0 | | |
| Claremont High School | - | Varsity | Large | 0 | | |
| Clay County High School | - | Varsity | Large | 0 | | |
| Clay-Chalkville Middle School | - | Junior | Large | 0 | | |
| Clay-Chalkville Middle School | - | Junior | Small | 0 | | |
| Clear Creek High School | - | Varsity | Large | 0 | | |
| Clear Creek High School | - | Varsity | Large | 0 | | |
| Clear Falls High School | - | Varsity | Large | 0 | | |
| Clear Falls High School | - | Varsity | Medium | 0 | | |
| Clear Lake High School | - | Varsity | Large | 0 | | |
| Clear Springs High School | - | Varsity | - | 0 | | |
| Cleburne County High School | - | Varsity | Large | 0 | | |
| Cleburne County High School | - | Varsity | Small | 0 | | |
| Cleburne County High School | - | Varsity | Large | 0 | | |
| Clements High School | - | Varsity | Large | 0 | | |
| Clemson University | - | - | Small | 0 | | |
| Clemson University | - | - | Large | 0 | | |
| Cleveland High School | - | Junior | - | 0 | | |
| Clinton High School | - | Varsity | - | 0 | | |
| Clinton High School | - | Varsity | Medium | 0 | | |
| Clovis East High School | - | Junior Varsity | - | 0 | | |
| Clovis North High School | - | Varsity | Small | 0 | | |
| Clovis West High School | - | Varsity | Large | 0 | | |
| Clovis West High School | - | Varsity | Medium | 0 | | |
| Club Deportivo Titanes All Stars | L6 | International Open | Large | 0 | | |
| CNG Studio | L1 | - | Large | 0 | | |
| CNG Studio | L1 | - | - | 0 | | |
| CNY Hurricanes | L3 | - | - | 0 | | |
| Coastal Carolina University | - | - | Large | 0 | | |
| Coastal Christian High School | - | Varsity | Large | 0 | | |
| Cockrill Middle School | - | - | Large | 0 | | |
| Coffee County Middle School | - | Junior | Small | 0 | | |
| Cold Spring Harbor High School | - | Varsity | Large | 0 | | |
| College View Middle School | - | Junior | Large | 0 | | |
| Colleyville Heritage High School | - | Varsity | Medium | 0 | | |
| Collierville Middle School | - | Junior | Large | 0 | | |
| Collierville Middle School | - | Junior | Large | 0 | | |
| Colonie Junior Wolf Pack | L1 | - | - | 0 | | |
| Columbia Academy | - | Open | - | 0 | | |
| Columbia Central High School | - | Varsity | Medium | 0 | | |
| Columbine High School | - | Varsity | Large | 0 | | |
| Columbine High School | - | Varsity | Small | 0 | | |
| Columbine High School | - | - | Large | 0 | | |
| Columbine High School | - | - | Large | 0 | | |
| Columbine High School | - | Varsity | Large | 0 | | |
| Columbine High School | - | - | Large | 0 | | |
| Columbine High School | - | Junior | Small | 0 | | |
| Columbus State University | - | - | Large | 0 | | |
| Concordia Lutheran High School | - | Varsity | Large | 0 | | |
| Conner High School | - | Varsity | Small | 0 | | |
| Conner High School | - | Varsity | Large | 0 | | |
| Connetquot High School | - | Varsity | Medium | 0 | | |
| Connetquot High School | - | Varsity | Large | 0 | | |
| Cookeville High School | - | Varsity | Large | 0 | | |
| Cooper High School | - | Junior | Large | 0 | | |
| Cooper High School | - | Varsity | - | 0 | | |
| Cooper High School | - | Varsity | Large | 0 | | |
| Coppell High School | - | Varsity | Large | 0 | | |
| Corbin Middle School | - | Junior | Large | 0 | | |
| Corbin Middle School | - | Junior | - | 0 | | |
| Cordova High School | - | Varsity | Large | 0 | | |
| Core Athletix | - | Open | Large | 0 | | |
| Core Athletix | L6 | Senior | Large | 0 | | |
| Core Athletix | L2 | Youth | Medium | 0 | | |
| Core Athletix Rochester | - | Senior | Large | 0 | | |
| Corinth High School | - | Varsity | Large | 0 | | |
| Corner Canyon High School | - | Varsity | Small | 0 | | |
| Corner Canyon High School | - | Varsity | Large | 0 | | |
| Corner Canyon High School | - | Varsity | Large | 0 | | |
| Corner Middle School | - | Junior | Large | 0 | | |
| Corona Del Sol High School | - | Junior | Large | 0 | | |
| Costa Rica All Stars | L5 | International Open | Large | 0 | | |
| Costa Rica CheerFusion | L5 | International Open | Large | 0 | | |
| Coulter Grove Intermediate School | - | Junior | Large | 0 | | |
| Coventry Dynamite | L5 | International Open | Large | 0 | | |
| Coventry Dynamite | L5 | International Open | Large | 0 | | |
| Coventry Dynamite | L4 | Open | Large | 0 | | |
| Coventry Dynamite Nitro | L5 | Open | Large | 0 | | |
| Covington High School | - | Varsity | Large | 0 | | |
| Cowley County Community College | - | - | Large | 0 | | |
| Cowley County Community College | - | - | Large | 0 | | |
| Coyotes | L4 | U18 | Large | 0 | | |