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| Altamont ES | B | 1 | | | Lammersville Unified School District | CA | |
| BASIS Cedar Park | B | 2 | 2 | Texas UT Austin | Charter | TX |
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| BASIS MS (San Jose) | B | 1 | | Santa Clara County Regional Science Olympiad | Private | CA | |
| Beachside High School | C | 1 | 1 | Northern Regional at The University of Florida | St. Johns County School District | FL | |
| Bothell High School | C | 1 | | Regional - NW (Division C) | Northshore | WA | |
| Chaboya MS | B | 3 | 3 | Santa Clara County Regional Science Olympiad | Evergreen School District | CA |
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| Challenger School | B | 2 | 2 | Santa Clara County Regional Science Olympiad | Sunnyvale | CA | |
| Davidson Academy | B | 2 | | Nevada Science Olympiad | Davidson Academy | NV | |
| Evergreen Middle School | B | 1 | 1 | Regional - NW-B-East | Lake Washington School District | WA |
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| Flintridge Sacred Heart Academy | C | 1 | 1 | SoCal Joint Regional | Independent | CA | |
| Hickory Ridge High School | C | 2 | | | Cabarrus County Schools | NC | |
| Incarnate Word Academy | B | 1 | 1 | Northeast & Northern Ohio Regional Tournament | PARMA CSD | OH |
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| Iowa City West High School | C | 4 | 4 | Iowa Science Olympiad | Iowa City Community School District | IA | |
| John Jay Senior High School (East Fishkill) | C | 2 | 2 | New York - Mid-Hudson Region | Wappingers Central School District | NY |
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| Khan Lab School | B | 2 | 2 | Santa Clara County Regional Science Olympiad | Khan Lab School | CA | |
| Mount View Middle School | B | 3 | 3 | MSO Regional Div B East/West | Howard County Public Schools | MD | |
| Northwestern Lehigh High School | C | 1 | | Central East Region at Kutztown University | Northwestern Lehigh School District | PA |
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| OCSA | B | 1 | 1 | OC | Orange County Department of Education | CA | |
| Odle Middle School | B | 1 | 1 | Regional - NW-B-East | Bellevue School District | WA | |
| Orlando Science Middle School | B | 1 | 1 | Central Regional at Osceola High School | Orange | FL |
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| Paul Laurence Dunbar | C | 2 | | Lexington Regional | Fayette County | KY |
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| Pearson Ranch Middle School | B | 2 | | Texas | Round Rock ISD | TX | |
| Rachel Carson Middle School | B | 3 | 3 | University of Mary Washington | Fairfax County | VA |
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| Saratoga High School | C | 1 | 1 | Santa Clara County Regional Science Olympiad | Los Gatos-Saratoga Union High School District | CA |
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| Solon Middle School | B | 1 | | Northeast & Northern Ohio Regional Tournament | Solon City Schools | OH |
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| Stoller Middle School | B | 2 | 2 | Oregon Science Olympiad | Beaverton School District | OR |
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| Timberline Middle School | B | 1 | 1 | | Lake Washington School District | WA |
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| Triangle Math and Science Academy | C | 3 | | | Wake County | NC | |
| Venado Middle School | B | 1 | | Southern California | Irvine Unified School District | CA |
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| Westpark Elementary School | B | 3 | 3 | Orange County | Irvine Unified School District | CA | |