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| Arcadia High School | C | 1 | 1 | Rio Hondo | Arcadia Unified School District | CA |
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| Austin Area Homeschool | C | 1 | 1 | | Homeschool | TX |
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| BASIS Austin | B | 1 | 1 | | BASIS Texas | TX | |
| Basis Cedar Park | B | 1 | 1 | UT Austin | Charter | TX |
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| Basis Cedar Park | C | 1 | 1 | San Antonio Regional at Texas A&M | Basis Charter School District | TX | |
| BASIS Chandler | C | 2 | 2 | | BASIS Educational group | AZ | |
| BASIS HS | C | 2 | 2 | Santa Clara County Regional Science Olympiad | San Jose School District | CA | |
| BASIS MS (San Jose) | B | 1 | 1 | | San Jose | CA | |
| Brooklyn Technical HS | C | 3 | 3 | | New York City Public Schools | NY | |
| Canyon MS (Bay Area) | B | 2 | 2 | | Castro Valley USD | CA | |
| Castro Valley HS | C | 4 | 4 | | Castro Valley USD | CA | |
| Chattahoochee High School | C | 3 | 3 | Georgia State - Clarkston C Regional | Fulton County | GA |
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| Cinco Ranch High School | C | 2 | 2 | Lonestar Cyfair Regional | Katy ISD | TX |
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| Clayton Valley Charter High School | C | 1 | 1 | Bay Area Science Olympiad | Clayton Valley Charter High School | CA |
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| Community MS | B | 2 | 2 | New Jersey Science Olympiad | West Windsor Plainsboro Regional School District | NJ |
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| Cornerstone Charter Academy | C | 1 | 1 | | Guilford County | NC | |
| Creekside MS | B | 2 | 2 | Bay Area Science Olympiad | Castro Valley USD | CA | |
| Cumberland Valley High School | C | 2 | 2 | Central Region at Millersville University | Cumberland Valley School District | PA |
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| Dana Middle School | B | 4 | 4 | SoCal Joint Regional | Arcadia Unified School District | CA |
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| Division Avenue High School | C | 3 | 3 | Nassau East Regional | Levittown Public Schools | NY | |
| Eagan High School | C | 3 | 3 | Minnesota Science Olympiad | Rosemount-Apple Valley-Eagan ISD 196 | MN | |
| Fulton Science Academy | B | 5 | 5 | Forsyth County B Regional | Private | GA |
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| Fulton Science Academy | C | 3 | 3 | Kennesaw St Marietta C Regional | Private | GA |
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| Garnet Valley High School | C | 2 | 2 | Southeast Regional at PSU Abington | Garnet Valley School District | PA | |
| Grand County High School | C | 1 | 1 | Utah Science Olympiad | Grand | UT | |
| Greene MS | B | 4 | 4 | Santa Clara County Regional Science Olympiad | Palo Alto Unified School District | CA | |
| Hanalani Schools | C | 1 | 1 | | HAIS | HI | |
| Hanalani Schools | B | 1 | 1 | | HAIS | HI | |
| Hawaii Baptist Academy | C | 1 | 1 | | Private - Honolulu | HI | |
| Hawken School | C | 1 | 1 | Northeast & Northern Ohio Regional Tournament | Hawken School | OH |
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| Highlands Intermediate School | B | 4 | 4 | 2022 HSSO Leeward Regional | Leeward District | HI | |
| Hilo Intermediate School | B | 2 | 2 | HSSO Div B Regional | Hilo-Waiakea Complex | HI | |
| Interlake High School | C | 2 | 2 | Regional - Northwest (Division C)-Bothell | Bellevue School District | WA | |
| Iolani School | B | 4 | 4 | 2022 HSSO Leeward Regional | Oahu | HI |
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| Iolani School | C | 5 | 5 | 2023 HSSO Leeward Regional | Oahu | HI | |
| Irvine High School | C | 1 | 1 | SoCal Joint Regional | Irvine Unified School District | CA |
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| James S. Rickards High School | C | 6 | 6 | | Leon County | FL | |
| Jeffrey Trail Middle School | B | 4 | 4 | SoCal Joint Regional | Irvine Unified School District | CA | |
| John Jay High School East Fishkill | C | 3 | 3 | New York - Mid-Hudson Region | Wappingers Central School District | NY | |
| Jordan High School | C | 3 | 3 | Gulf Coast Regional | Katy ISD | TX |
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| Kealing Middle School | B | 3 | 3 | UT Austin | Austin ISD | TX | |
| Kennedy MS | B | 8 | 8 | | Cupertino Union School District | CA |
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| Kickemuit Middle School | B | 2 | 2 | Rhode Island Science Olympiad | Bristol Warren Regional | RI | |
| Lakeside Middle School | B | 1 | 1 | SoCal Joint Regional | Irvine Unified School District | CA |
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| Liberal Arts and Science Academy | C | 3 | 3 | University of Texas Austin | Austin Independent School District | TX |
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| Liberty Middle school | B | 4 | 4 | Regional - Southwest (Division B) | Camas School District | WA |
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| Lynbrook HS | C | 3 | 3 | | Fremont Union High School | CA | |
| Mililani High School | C | 2 | 2 | 2022 HSSO Leeward Regional | Leeward | HI |
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| Monta Vista HS | C | 3 | 3 | | Fremont Union High School District | CA |
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| North Oldham Middle School | B | 1 | 1 | Louisville Regional | Oldham County Schools | KY | |
| Northwest Guilford High School | C | 4 | 4 | | Guilford County | NC | |
| Northwood High School | C | 2 | 2 | Orange County Regionals | Irvine Unified School District | CA | |
| Novi Middle School | B | 7 | 7 | Oakland County - MI Region 6 | Novi Community School District | MI | |
| Orange County School of the Arts | B | 5 | 5 | Orange County | Independent Charter | CA | |
| Osceola Science Charter School | B | 1 | 1 | Eastern Regional at Embry Riddle Aeronautical University | The School District of Osceola County | FL |
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| Pearl City High School | C | 4 | 4 | 2022 HSSO Leeward Regional | Leeward District | HI | |
| Plainfield North High School | C | 3 | 3 | Illinois Regional | Plainfield School District 202 | IL |
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| Punahou School | B | 1 | 1 | | HAIS | HI | |
| Questa | B | 2 | 2 | San Joaquin County | Lammersville USD | CA | |
| Seven Bridges Middle School | B | 1 | 1 | | Chappaqua | NY | |
| Seven Lakes High School | C | 2 | 2 | | Katy ISD | TX |
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| Sierra Vista Middle School | B | 9 | 9 | | IUSD | CA |
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| South Forsyth High School | C | 3 | 3 | UNG Gainesville C Regional | Forsyth County | GA | |
| Stephen F. Austin High School | C | 3 | 3 | Houston Regional | Fort Bend ISD | TX |
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| Stoller Middle School | B | 2 | 2 | Oregon Science Olympiad | Beaverton School District | OR |
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| The College Preparatory School | C | 3 | 3 | | Oakland USD | CA | |
| Timberline Middle School | B | 3 | 3 | Regional - Southwest (Division B) | Lake Washington School District | WA |
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| University Laboratory School | B | 1 | 1 | 2022 HSSO Leeward Regional | Hawaii | HI | |
| University Laboratory School | C | 4 | 4 | 2022 HSSO Leeward Regional | Hawaii | HI | |
| Venado Middle School | B | 2 | 2 | Southern California | Irvine Unified School District | CA |
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| Vestal High School | C | 2 | 2 | Southern Tier | Vestal Central School District | NY |
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| Westside High School | C | 1 | 1 | NE Regional | Westside Community Schools | NE | |
| Wicklund Elementary | B | 2 | 2 | San Joaquin County | Lammersville Unified | CA |
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| Windemere Ranch Middle School | B | 4 | 4 | | San Ramon Valley USD | CA |
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| Wisdom Lane Middle School | B | 2 | 2 | | Levitown | NY | |