| Ozark HS JV Winter Guard | CG: Scholastic Regional A | Theresa Walls | Missouri |
| Odessa HS Winter Percussion | Perc: Scholastic B | Jill Endaya | MO |
| Odessa HS Winter Guard | CG: Scholastic A | Rebecca Westmoreland | MO |
| Oakville HS Winter Guard | CG: Scholastic AA | Zachary Barber | MO |
| Oakland Middle School Winter Guard | CG: Scholastic Cadet | Christina Thalhuber | MO |
| O'Fallon Township Junior High Winter Guard | CG: Independent Cadet | Daniel Bertram | Illinois |
| O'Fallon Township HS Varsity Winter Guard | CG: Scholastic A | Daniel Bertram | Illinois |
| O'Fallon Township HS JV Winter Guard | CG: Scholastic AA | Daniel Bertram | Illinois |
| Northwest HS Winter Guard | CG: Scholastic Regional A | Katie Hermann | Mo |
| North Kansas City HS Winter Guard | CG: Scholastic Regional A | Christi Mills | Missouri |
| Nixa Junior High Winter Guard | CG: Scholastic Cadet | Craig Finger | MO |
| Nixa HS Winter Guard | CG: Scholastic A | Craig Finger | MO |
| Nevada HS Winter Winds | Winds: Scholastic A | Michael Fox | Missouri |
| Nevada HS Winter Guard | CG: Scholastic Regional A | Michael Fox | Missouri |
| National Avenue | CG: Independent A | John Sullivan | MO |
| Murphysboro HS Indoor Percussion | Perc: Scholastic B | Michael Moreland | Illinois |
| Mountain Home HS Winter Guard | CG: Scholastic Regional A | Jackie Basinger | Arkansas |
| Moreland Ridge Middle School Winter Guard | CG: Scholastic Cadet | Elizabeth Keune | MO |
| Modulation Z | Perc: Independent Open | Ryan Treasure | MO |
| Mid-Buchanan Middle School Winter Guard | CG: Scholastic Cadet | Kim Privat | Mo |
| Mid-Buchanan HS Winter Guard | CG: Scholastic Regional A | Kim Privat | Mo |
| McCluer North HS Winter Guard | CG: Scholastic AA | Charlie Bourrage | Missouri |
| Mattoon HS Winter Guard | CG: Scholastic Regional A | Angi (Black) Dallas and Allison Christian | IL |
| Mater Dei Catholic HS Winter Percussion | Perc: Scholastic A | Matthew Murphy | IL |
| Mascoutah HS Winter Guard | CG: Scholastic A | Jo Smith | IL |
| Maryville HS Winter Guard | CG: Scholastic Regional A | Kylie Mattke, Jeremy Krug | Missouri |
| Marquette HS Winter Guard | CG: Scholastic A | Melissa Wilson | Missouri |
| Lindbergh District Middle School Winter Guard | CG: Scholastic Cadet | Jamie Hutson | MO |
| Liberty North HS Winter Guard | CG: Scholastic Regional A | Amy Hall | MO |
| Liberty HS Winter Guard | CG: Scholastic AA | Laurie Walls | Missouri |
| Lee's Summit West HS Winter Guard | CG: Scholastic AA | Sydnie Locascio | MO |
| Lee's Summit North HS Winter Guard | CG: Scholastic Regional A | Paige Brown | MO |
| Lee's Summit HS Winter Guard | CG: Scholastic AA | Laura Finch | MO |
| Lee's Summit HS Indoor Percussion | Perc: Scholastic Open | Mike McBain | Missouri |
| Lawson HS Winter Guard | CG: Scholastic Regional A | Kristy Humbard | Missouri |
| Lathrop HS Winter Guard | CG: Scholastic Regional A | Erin Holliway | MO |
| Laquey HS Winds | Winds: Scholastic A | Doug Schaffer | MO |
| Lafayette HS Winter Guard | CG: Scholastic A | Evan Coonrod | MO |
| Lafayette County C-1 HS Winter Guard | CG: Scholastic Regional A | Kelly Reuther | MO |
| Kickapoo HS Percussion | Perc: Scholastic Open | Troy Peterson | MO |
| Kickapoo HS Gold Winter Guard | CG: Scholastic AA | Sherri Peterson | Missouri |
| Kickapoo HS Emulation Winter Guard | CG: Scholastic Open | Sherri Peterson | Missouri |
| Joplin HS Winter Guard | CG: Scholastic Regional A | Christina Leonard | Missouri |
| Joplin HS Indoor Drumline | Perc: Scholastic B | Mike Wassenaar | MO |
| Ionic Independent | CG: Independent A | Christina Thalhuber | MO |
| Immense Memories | CG: Independent Regional A | Catherine Edwards | OK |
| Hollister HS Winds | Winds: Scholastic A | Nathan Spurling | Missouri |
| Hillsboro HS Winter Guard | CG: Scholastic AA | Tim Dedert | MO |
| Hillcrest HS Winter Guard | CG: Scholastic Regional A | Shane Knupps | MO |
| Hillcrest HS Percussion | Perc: Scholastic B | Shane Knupps | MO |
