| | | | | | |
| Canal Winchester HS | C | 1 | Central Ohio Regional Tournament | Canal Winchester Local Schools | OH | |
| Centerville High School | C | 3 | Western Ohio Regional Tournament | Centerville City Schools | OH | |
| Cincinnati Country Day School | C | 2 | Southwestern Ohio Science Olympiad | Independent | OH | |
| Columbus Academy | C | 1 | Central Ohio Regional Tournament | Gahanna Jefferson | OH | |
| Dublin Coffman High School | C | 2 | Central Ohio Regional Tournament | Dublin City School District | OH | |
| Granville High School | C | 1 | Central Ohio Regional Tournament | Granville Exempted Village School District | OH | |
| Hudson High School | C | 2 | Akron Regional Science Olympiad (Eastern) | Hudson City Schools | OH |
|
| Lebanon High School | C | 1 | Northeast Ohio Regional Tournament | Lebanon City Schools | OH | |
| Lincolnview High School | C | 1 | BGSU Northwest Ohio Regional | Lincolnview Local Schools | OH | |
| Loveland High School | C | 1 | Southwestern Ohio Science Olympiad | Loveland City Schools | OH | |
| New Albany High School | C | 2 | Central Ohio Regional Tournament | New Albany Plain Local School District | OH | |
| Olentangy Berlin High School | C | 2 | Central Ohio Regional Tournament | Olentangy Local Schools | OH | |
| Olentangy High School | C | 4 | Central Ohio Regional Tournament | Olentangy Local School District | OH | |
| Olentangy Liberty High School | C | 2 | Central Ohio Regional Tournament | Olentangy Local Schools | OH | |
| Pickerington High School Central | C | 2 | Central Ohio Regional Tournament | Pickerington Local School District | OH | |
| Piqua High School | C | 1 | Western Ohio Regional Tournament | Piqua City Schools | OH | |
| Shawnee High School | C | 2 | BGSU Northwest Ohio Regional | Shawnee Local Schools | OH | |
| Solon High School | C | 2 | Northeast & Northern Ohio Regional Tournament | Solon City Schools | OH | |
| St. Xavier High School | C | 1 | Southwestern Ohio Science Olympiad | St. Xavier High School | OH | |
| Thomas Worthington High School | C | 1 | Central Ohio Regional Tournament | Worthington City School | OH | |
| Upper Arlington High School | C | 1 | Central Ohio Regional Tournament | Upper Arlington School District | OH | |
| Worthington Kilbourne High School | C | 1 | | Worthington City Schools | OH | |
| Wyoming High school | C | 1 | Southwestern Ohio Science Olympiad | Wyoming City Schools | OH | |