| Battle High School Winter Guard | CG Scholastic Regional A |
| Belleville West A Winter Guard | CG Scholastic A |
| Belton High School Winter Guard | CG Scholastic Regional A |
| Collinsville High School Winterguard | CG Scholastic A |
| Edwardsville A | CG Scholastic A |
| Edwardsville AA | CG Scholastic AA |
| Effingham High School Winter Guard | CG Scholastic Regional A |
| Ember Independent | CG Independent A |
| Eugene High School Winter Guard | CG Scholastic Novice |
| Eureka High School | CG Scholastic Regional A |
| Fort Zumwalt South JV | CG Scholastic Regional A |
| Fort Zumwalt South Varsity | CG Scholastic AA |
| Fort Zumwalt West High School | CG Scholastic AA |
| Fox C-6 Winter Guard | CG Independent Regional A |
| Francis Howell Central HS | CG Scholastic Regional A |
| Francis Howell Winter Guard | CG Scholastic A |
| Hazelwood West High School | CG Scholastic Novice |
| Hollister High School Winter Guard | CG Scholastic Regional A |
| La Voute Performance Ensemble | CG Independent World |
| Lafayette JV | CG Scholastic AA |
| Lafayette Varsity | CG Scholastic A |
| Lindbergh District Middle School | CG Scholastic Cadet |
| Lindbergh High School Junior Varsity | CG Scholastic Regional A |
| Lindbergh High School Varsity | CG Scholastic AA |
| Marquette High School | CG Scholastic AA |
| Mascoutah High School | CG Scholastic Regional A |
| Mattoon High School | CG Scholastic Regional A |
| North County High School Winterguard | CG Scholastic Novice |
| North Kansas City High School | CG Scholastic Regional A |
| North Point High School | CG Scholastic AA |
| Northwest High School | CG Scholastic Regional A |
| O'Fallon Township High School | CG Scholastic A |
| O'Fallon Township High School A | CG Scholastic AA |
| O’Fallon Township Middle School | CG Independent Cadet |
| Oakville High School | CG Scholastic AA |
| Ozark Varsity | CG Scholastic A |
| Parkway Central High School | CG Scholastic Regional A |
| Parkway North High School | CG Scholastic Regional A |
| Parkway South High School | CG Scholastic Regional A |
| Queen City Independent | CG Independent Regional A |
| Southern Boone High School | CG Scholastic Novice |
| St. Charles United Winter Guard | CG Independent Regional A |
| Timberland High School | CG Scholastic AA |
| Union High School | CG Scholastic Regional A |
| Washington High School | CG Scholastic A |
| Wentzville Holt High School | CG Scholastic AA |
| Wentzville Liberty HS | CG Scholastic AA |
| Wentzville Middle School | CG Scholastic Cadet |
| Wright City High School Winter Guard | CG Scholastic Regional A |
