| Belleville East HS A | CG Scholastic Regional A |
| Belleville East Open | CG Scholastic Open |
| Belleville Township Middle Schools East | CG Independent Cadet |
| Belleville West HS JV | CG Scholastic Regional A |
| Belleville West HS Varsity | CG Scholastic A |
| Collinsville High School Winter Guard | CG Scholastic Regional A |
| Edwardsville A | CG Scholastic A |
| Edwardsville Open | CG Scholastic Open |
| Elevate | CG Independent World |
| Elevate | CG Independent Open |
| Eloria Independent | CG Independent Open |
| Eureka High School | CG Scholastic AA |
| Farmington R-7 High School Winter Guard | CG Scholastic AA |
| Fort Zumwalt East JV | CG Scholastic AA |
| Fort Zumwalt East Varsity | CG Scholastic AA |
| Fort Zumwalt West High School | CG Scholastic AA |
| Fox High School Winter Guard | CG Scholastic Regional A |
| Francis Howell North Winter Guard | CG Scholastic Regional A |
| Francis Howell Winterguard | CG Scholastic A |
| Fredericktown | CG Scholastic Novice |
| Granite City High School Steel City Winter Guard | CG Scholastic Regional A |
| Hazelwood West High School | CG Scholastic Novice |
| Heartland Independent of Southeast Missouri State University | CG Independent A |
| Highland High School Winter Guard | CG Scholastic Novice |
| Hillsboro High School Winter Guard | CG Scholastic Regional A |
| Lafayette High School | CG Scholastic A |
| Marquette High School | CG Scholastic AA |
| Mascoutah High School | CG Scholastic AA |
| Mater Dei Catholic High School | CG Scholastic Regional A |
| Mattoon High School Winter Guard | CG Scholastic Regional A |
| North County High School JV | CG Scholastic Novice |
| North County High School Varsity | CG Scholastic Regional A |
| North Point High School Winter Guard | CG Scholastic AA |
| O'Fallon Township Cadet | CG Independent Cadet |
| O'Fallon Township High School | CG Scholastic A |
| O'Fallon Township High School | CG Scholastic Regional A |
| Oakville High School | CG Scholastic AA |
| Parkway South High School | CG Scholastic Regional A |
| Pattonville JV | CG Scholastic Regional A |
| Pattonville Varsity Winterguard | CG Scholastic A |
| Rockwood Summit High School | CG Scholastic A |
| Seckman High School Winter Guard | CG Scholastic Regional A |
| St. Charles United Winter Guard | CG Independent Regional A |
| Timberland HS Winter Guard | CG Scholastic A |
| Union High School | CG Scholastic Regional A |
| Washington High School Winterguard | CG Scholastic A |
| Waterloo High School | CG Scholastic Regional A |
| Wentzville Holt High School | CG Scholastic AA |
| Wentzville Holt Middle School | CG Scholastic Cadet |
| Wentzville Liberty | CG Scholastic AA |
