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| Autrey Mill Middle School | B | 2 | | Forsyth County B Regional | Fulton County Schools | GA |
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| Baker Middle School | B | 1 | 1 | Oakland County - MI Region 6 | Troy School District | MI | |
| Beachwood Middle School | B | 2 | | Northeast & Northern Ohio Regional Tournament | Beachwood | OH | |
| Birmingham Covington School | B | 1 | | Oakland County - MI Region 6 | Birmingham Public Schools | MI |
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| Buchholz High School | B | 1 | 1 | Northern Regional at Buchholtz High School | Alachua County Public Schools | FL | |
| Buchholz High School | C | 1 | 1 | Northern Regional at Buchholtz High School | Alachua County Public Schools | FL | |
| Davis Senior HS | C | 2 | 2 | Sacramento Regional Science Olympiad | Davis Joint Unified School District | CA |
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| Eagan High School | C | 3 | | Minnesota Science Olympiad | Rosemount-Apple Valley-Eagan ISD 196 | MN | |
| Edison High School | C | 1 | 1 | New Jersey Science Olympiad | Edison Township Public Schools | NJ |
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| Fulton Science Academy | B | 3 | 3 | Forsyth County B Regional | Private | GA |
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| Fulton Science Academy | C | 2 | 2 | Kennesaw St Marietta C Regional | Private | GA |
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| Glasgow Middle | B | 3 | 3 | Louisiana Region 2 | East Baton Rouge Parish | LA |
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| Glasgow Middle School | B | 2 | | | EBR Baton Rouge | LA | |
| Granville Middle School | B | 2 | 2 | Central Ohio Regional Tournament | Granville Exempted Village School District | OH | |
| Hadley E Watts Middle School | B | 2 | | Western Ohio Regional Tournament | Centerville City Schools | OH | |
| Hillside Middle School | B | 2 | 2 | Wayne Monroe Science Olympiad | Northville Public Schools | MI | |
| James Clemens High School | C | 1 | 1 | AMSTI-North Alabama Regional | Madison City Schools | AL | |
| Kennedy MS | B | 3 | 3 | | Cupertino Union School District | CA |
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| Lakota East High School | C | 1 | | | Lakota (Butler) | OH | |
| Lakota East High School | C | 1 | | Northeast Ohio Regional Tournament | Lakota Local Schools | OH | |
| Lehman Catholic High School | C | 2 | 1 | Western Ohio Regional Tournament | Archdiocese of Cincinnati | OH | |
| Lexington High School | C | 2 | 2 | Massachusetts State Science Olympiad | Lexington Public Schools | MA |
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| Lightridge High School (22-23) | C | 3 | | Written Test Day (2/11) | Loudoun County Public Schools | VA |
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| Loveland High School | C | 1 | 1 | Southwestern Ohio Science Olympiad | Loveland City Schools | OH | |
| Magsig Middle School | B | 2 | | Western Ohio Regional Tournament | Centerville City Schools | OH | |
| Marie Murphy School | B | 2 | 2 | Illinois Regional | Avoca School District #37 | IL | |
| Mason Middle School | B | 2 | 2 | Southwestern Ohio Science Olympiad | Mason City Schools | OH |
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| Mayfield High School | C | 2 | 2 | Northeast & Northern Ohio Regional Tournament | Mayfield City Schools | OH | |
| Meads Mill Middle School | B | 1 | 1 | Wayne Monroe Science Olympiad | Northville Public Schools | MI |
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| Memorial Middle School | B | 2 | 2 | Northeast & Northern Ohio Regional Tournament | Mentor Public Schools | OH | |
| Mentor High School | C | 2 | 2 | Northeast & Northern Ohio Regional Tournament | Mentor Public Schools | OH | |
| Montgomery Blair High School | C | 1 | 1 | | Montgomery County Public Schools | MD | |
| Munster High School | C | 2 | 2 | State | School Town of Munster | IN | |
| North Hollywood High School | C | 1 | 1 | SoCal Joint Regional | Los Angeles Unified School District | CA | |
| North Park Elementary School | B | 3 | 3 | Illinois Regional | Private | IL | |
| Northmont High School | C | 1 | 1 | Western Ohio Regional Tournament | Northmont City Schools | OH | |
| Northville High School | C | 1 | 1 | | Northville | MI | |
| Olentangy Berlin High School | C | 1 | | Central Ohio Regional Tournament | Olentangy Local Schools | OH | |
| Osceola Science Charter School | B | 2 | | Eastern Regional at Embry Riddle Aeronautical University | The School District of Osceola County | FL |
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| Paul Laurence Dunbar | C | 2 | | Louisville Regional | Fayette County | KY |
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| Pickerington High School Central | C | 2 | | Central Ohio Regional Tournament | Pickerington Local School District | OH | |
| Piedmont Open IB Middle School | B | 1 | 1 | | Charlotte-Mecklenburg Schools | NC |
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| Pilgrimage Homeschool Div. B | B | 1 | 1 | MSO Regional Div B West | Montgomery County | MD | |
| Pilgrimage Homeschool Div. C | C | 1 | 1 | MSO Regional Div C West | Montgomery County | MD | |
| Piqua High School | C | 1 | 1 | Western Ohio Regional Tournament | Piqua City Schools | OH | |
| Rancho San Joaquin Middle School | B | 2 | 2 | SoCal Joint Regional | IUSD | CA |
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| Richard Montgomery HS | C | 1 | | MSO Regional Div C West | Montgomery County Public Schools | MD | |
| Scarsdale High School | C | 1 | | Lower Hudson VAlle | Scarsdale UFSD | NY | |
| Shore Middle School | B | 2 | 2 | Northeast & Northern Ohio Regional Tournament | Mentor | OH | |
| Sierra Vista Middle School | B | 3 | 3 | | IUSD | CA |
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| Solon High School | C | 1 | 1 | Northeast & Northern Ohio Regional Tournament | Solon City Schools | OH | |
| Solon Middle School | B | 2 | 2 | Northeast & Northern Ohio Regional Tournament | Solon School District | OH | |
| Springfield High School | C | 1 | | BGSU Northwest Ohio Regional | Springfield Local Schools (Lucas County) | OH | |
| St. Xavier High School | C | 1 | 1 | Southwestern Ohio Science Olympiad | St. Xavier High School | OH | |
| Timberline Middle School | B | 1 | | Regional - Southwest (Division B) | Lake Washington School District | WA |
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| Tower Heights Middle School | B | 1 | | Western Ohio Regional Tournament | Centerville City Schools | OH | |
| Vernon Hills High School | C | 1 | | Illinois Regional | Community High School District 128 | IL | |
| Walter Johnson High School | C | 2 | 2 | MSO Regional Div C West | Montgomery County Public Schools | MD | |
| Wasatch High School | C | 1 | | Utah Science Olympiad | Wasatch School District | UT | |
| West Liberty Salem High School | C | 1 | 1 | Western Ohio Regional Tournament | West Liberty- Salem Local Schools | OH | |
| Westlake HS | C | 3 | 3 | Northern Ohio Regional | Westlake City Schools | OH |
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| Winburn Middle School | B | 1 | 1 | | Fayette County Public Schools | KY | |