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| Albany Middle School | B | 3 | 3 | Alameda Regional Science Olympiad | Albany USD | CA |
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| BASIS Cedar Park | B | 1 | 1 | Texas UT Austin | Charter | TX |
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| BASIS Independent Fremont | C | 2 | | Alameda Regional Science Olympiad | Fremont USD | CA | |
| BASIS Independent Fremont (MS) | B | 3 | | Alameda Regional Science Olympiad | Fremont USD | CA | |
| Basis Pflugerville | C | 1 | 1 | Basis Pflugerville | Basis Texas | TX | |
| Basis Pflugerville | B | 3 | 3 | n/a | Charter | TX | |
| Bridgeland High School | C | 3 | | University of Texas Regional | Cypress-Fairbanks ISD | TX |
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| Carlmont HIgh School | C | 3 | | Bay Area Regional Science Olympiad | Sequoia Union High School District | CA | |
| Castro Valley HS | C | 1 | 1 | Alameda Regional Science Olympiad | Castro Valley USD | CA | |
| CG Woodson High School | C | 3 | | Written Test Day (2/11) | Fairfax County Public Schools | VA |
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| Chaboya MS | B | 3 | | Santa Clara County Regional Science Olympiad | Evergreen School District | CA |
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| Chapin School (MS) | B | 2 | 2 | New Jersey Science Olympiad | Private | NJ | |
| Emerald High School | C | 3 | 3 | Alameda Regional Science Olympiad | Dublin Unified School District | CA | |
| Evergreen Middle School | B | 3 | 3 | Regional - Northwest B #1 | Lake Washington School District | WA |
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| Evergreen Valley HS | C | 3 | 3 | Santa Clara County Regional Science Olympiad | East Side Union High School District | CA | |
| Fremont High School | C | 3 | | Santa Clara County Regional Science Olympiad | Fremont Union High School | CA | |
| G.M. Walters Middle School | B | 1 | 1 | | Fremont Unified School District | CA | |
| Glasgow Middle | B | 6 | | Louisiana Science Olympiad | East Baton Rouge Parish | LA |
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| Hyde MS | B | 4 | | Santa Clara County Regional Science Olympiad | Cupertino Union School District | CA | |
| John P Stevens HS | C | 1 | 1 | New Jersey Science Olympiad | Edison Township Public Schools | NJ |
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| Jonas Clarke Middle School | B | 2 | | Massachusetts State Science Olympiad | Lexington Public Schools | MA |
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| Kennedy Middle School | B | 13 | | Santa Clara County Regional Science Olympiad | Cupertino Union School District | CA |
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| Livermore HIgh School | C | 2 | | Alameda Regional Science Olympiad | Livermore Valley Joint Unified School District | CA | |
| Marquette University HS | C | 1 | 1 | Southeast WI | Private | WI |
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| McNeil High IB World School | C | 1 | | Texas | Round Rock ISD | TX | |
| Milpitas High School | C | 3 | 3 | Santa Clara County Regional Science Olympiad | Milpitas Unified School District | CA | |
| Milton Academy | C | 1 | 1 | | Independent School League | MA | |
| Monta Vista High School | C | 5 | 5 | Santa Clara County Regional Science Olympiad | Fremont Union High School District | CA |
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| Moreau Catholic High School | C | 1 | | Alameda Regional Science Olympiad | None - Catholic School | CA | |
| Mount View Middle School | B | 1 | | MSO | Howard County Public Schools | MD | |
| Mountain House HS | C | 3 | 3 | San Joaquin County | Lammersville Unified School District | CA | |
| Odle Middle School | B | 1 | 1 | Regional - Northwest B #2 | Bellevue School District | WA | |
| Orange County School of the Arts | C | 3 | 3 | SoCal Joint Regional | independent charter | CA |
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| Orlando Science Middle School | B | 1 | | Central Regional at Osceola High School | Orange | FL |
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| Piedmont Open IB Middle School | B | 1 | | | Charlotte Mecklenburg | NC |
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| Piedmont Open IB Middle School | B | 1 | | Charlotte Mecklenburg | Charlotte-Mecklenburg Schools | NC |
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| Princeton International School for Mathematics and Science | C | 2 | 2 | | Independent | NJ | |
| Quail Valley Middle School | B | 2 | | Gulf Coast | Fort Bend ISD | TX | |
| Redmond High School | C | 2 | | Washington Science Olympiad NW C Regional | Lake Washington School District | WA | |
| Redmond Middle School | B | 6 | | Regional - Northwest B #2 | Lake Washington School District | WA |
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| Redwood Middle School | B | 4 | 8 | Santa Clara County Regional Science Olympiad | Saratoga Union SD | CA |
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| Robert C. Fisler K-8 | B | 1 | 1 | SoCal Joint Regional | Fullerton School District | CA | |
| Saint Francis High School | C | 3 | 3 | Santa Clara County Regional Science Olympiad | Diocese of San Jose | CA |
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| Santa Teresa High School | C | 1 | | Santa Clara County Regional Science Olympiad | East Side Union High School District | CA |
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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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| Science & Arts Academy | B | 1 | 1 | | Independent school | IL |
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| Silicon Valley Home School | C | 1 | 1 | Santa Clara County Regional Science Olympiad | San Jose Unified School District | CA | |
| Stoller Middle School | B | 1 | | Oregon Science Olympiad | Beaverton School District | OR |
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| Sunset High School | C | 1 | 1 | Oregon Science Olympiad | Beaverton School District | OR | |
| The Frazer School | B | 1 | 1 | Northern Regional at The Frazier School | Private | FL | |
| The Frazer School | C | 1 | 1 | Northern Regional at The Frazier School | Private | FL | |
| Timberline Middle School | B | 1 | 1 | Regional - NW (Division B)-RAHS | Lake Washington School District | WA |
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| Westlake High School | C | 1 | | Texas | Eanes ISD | TX | |
| Westpark Elementary School | B | 2 | 2 | Orange County | Irvine Unified School District | CA | |
| Woodside High School | C | 2 | 2 | Bay Area Regional Science Olympiad | Sequoia UHSD | CA | |