| | | | | | |
| AAH Science Team | C | 1 | 1 | | AAH Science Team | TX |
| Advanced Technologies Academy | C | 2 | 2 | Nevada Science Olympiad | Clark County School District | NV |
| Alston Ridge Middle School | B | 1 | 1 | Raleigh Regional | Wake County Public School System | NC |
| American High School | C | 3 | 3 | Alameda Regional Science Olympiad | Fremont Unified School District | CA |
| Archimedean Middle Conservatory | B | 3 | 3 | Southeast Regional at Florida Atlantic University | Miami-Dade | FL |
| Archimedean Upper Conservatory | C | 3 | 3 | Southeastern Regional at Florida Atlantic University | Miami-Dade | FL |
| Arnold O. Beckman High School | C | 2 | 2 | Orange County | Tustin Unified | CA |
| BASIS Cedar Park | B | 8 | 8 | Texas UT Austin | Charter | TX |
| BASIS Cedar Park HS | C | 6 | 6 | TX | BASIS Charter School District | TX |
| BASIS Chandler | B | 4 | 4 | Div B: North Central | Basis Charter Schools Inc. | AZ |
| BASIS Chandler | C | 4 | 4 | Div C: North Central | Basis Charter Schools Inc. | AZ |
| Basis HS | C | 1 | 1 | Santa Clara County Regional Science Olympiad | Private | CA |
| BASIS Independent Fremont | C | 3 | 3 | Alameda Regional Science Olympiad | Fremont USD | CA |
| BASIS Independent Fremont (MS) | B | 3 | 3 | Alameda Regional Science Olympiad | Fremont USD | CA |
| BASIS MS (San Jose) | B | 1 | 1 | Santa Clara County Regional Science Olympiad | Private | CA |
| Basis Pflugerville | B | 4 | 4 | n/a | Charter | TX |
| Beckendorff Junior High | B | 2 | 2 | University of Texas Regional | Katy ISD | TX |
| Benjamin N. Cardozo High School | C | 2 | 2 | | NYCDOE District 26 | NY |
| Boca Raton Community High School | C | 2 | 2 | Southeast Regional at Florida Atlantic University | Palm Beach | FL |
| Brightwood Elementary School | B | 3 | 4 | | Alhambra Unified School District | CA |
| Canyon Ridge Middle School | B | 1 | | ATX Science Olympiad | Leander ISD | TX |
| Carolina Collegiate High School | C | 1 | 1 | Carolina Collegiate High School | Durham Charter | NC |
| Central High School | C | 2 | | Southeast Regional at PSU Abington | Philadelphia School District | PA |
| Chaminade High School | C | 2 | 2 | Nassau West (C) | None - private school | NY |
| Colleyville Heritage High School | C | 1 | 1 | | Grapevine-Colleyville ISD | TX |
| Cottonwood Classical Preparatory School | C | 1 | 1 | Central New Mexico Science Olympiad | Charter | NM |
| Crean Lutheran High School | C | 2 | | | Irvine | CA |
| Creekside MS | B | 2 | 2 | Alameda Regional Science Olympiad | Castro Valley USD | CA |
| Cypress Creek High School | C | 2 | 2 | Gulf Coast Regional | Cypress Fairbanks ISD | TX |
| Ed W. Clark High School | C | 7 | 7 | Nevada Science Olympiad | Clark County School District | NV |
| Evergreen Middle School | B | 3 | 3 | Regional - NW-B-East | Lake Washington School District | WA |
| Fairfield County Homeschoolers | C | 1 | 1 | | Fairfield County, CT | CT |
| Flintridge Sacred Heart Academy | C | 1 | 1 | SoCal Joint Regional | Independent | CA |
| Foothill High School | C | 2 | 2 | Alameda Regional Science Olympiad | Pleasanton USD | CA |
| Fountain Valley High School | C | 1 | 1 | SoCal Joint Regional | Huntington Beach Union High School District | CA |
| Fred J. Carnage Middle School | B | 3 | 3 | | Wake County Public Schools | NC |
| Fremont High School | C | 1 | 1 | Santa Clara County Regional Science Olympiad | Fremont Union High School District | CA |
| Fulshear High School | C | 3 | | Gulf Coast | Lamar Consolidated ISD | TX |
| Gateway Middle School | B | 1 | 1 | Regional - NW-B-Seattle | Everett School District | WA |
| General Douglas MacArthur High School | C | 2 | 2 | NY | Levittown Public Schools | NY |
| Glasgow Middle | B | 5 | 5 | Sample Regional | East Baton Rouge Parish | LA |
| Goodtree Academy | C | 1 | 1 | | Plano | TX |
| Hamilton Middle School | B | 3 | 3 | WI Region 1 | Madison Metropolitan School District | WI |
| Hickory Ridge High School | C | 3 | 3 | | Cabarrus County Schools | NC |
| Ingersoll Middle School | B | 1 | 1 | | Canton Union School District #66 | IL |
| James S. Rickards High School | C | 6 | 6 | North Regional at The University of Florida | Leon County | FL |
| Jefferson School | B | 1 | 1 | San joaquin county | Jeffserson School district | CA |
| Jeffrey Trail Middle School | B | 4 | 4 | Orange County Regional | Irvine Unified School District | CA |
| Jesuit High School | C | 2 | 2 | Oregon Science Olympiad | Independent | OR |
| Joel Barlow High School | C | 2 | 2 | | er9 Redding Easton | CT |
| John B. Connally High School | C | 2 | 2 | University of Texas Regional | Pflugerville ISD | TX |
| Jordan High School | C | 2 | 2 | UT Austin Regional | Katy Independent School District | TX |
| Kamiakin Middle School | B | 1 | 1 | Regional - NW-B-Seattle | Lake Washington School District | WA |
| Kealing Middle School | B | 6 | 6 | UT Austin | Austin ISD | TX |
| Kennedy Middle School | B | 1 | | Santa Clara County Regional Science Olympiad | Cupertino Union School District | CA |
| Kraemer Middle School | B | 4 | 4 | Orange County Regional | Placentia Yorba Linda Unified | CA |
| Lakeside Middle School | B | 1 | 1 | SoCal Joint Regional | Irvine Unified School District | CA |
| Lambert High School | C | 2 | 1 | Regional Placeholder | Forsyth County | GA |
| Langham Creek High School | C | 1 | 1 | | Cypress-Fairbank ISD | TX |
| Leota Middle School | B | 3 | 3 | Regional - NW-B-Seattle | Northshore School District | WA |
| Libertyville High School | C | 6 | 6 | Illinois Regional | District 128 | IL |
| Lincoln Public Schools, Science Focus Program | C | 1 | 1 | | Lincoln Public Schools | NE |
| Longfellow Middle School | B | 1 | 1 | University of Mary Washington | Fairfax County Public Schools | VA |
| Los Altos High School | C | 4 | 4 | Santa Clara County Regional Science Olympiad | Mountain View Los Altos | CA |
| Madison West High School | C | 3 | 3 | WI Region 1 | Madison Metropolitan School District | WI |
| Marcus High School | C | 1 | 1 | | Lewisville ISD | TX |
| Mark Keppel High School | C | 3 | 3 | SoCal Joint Regional | Alhambra | CA |
| Mark Twain Middle School | B | 2 | 2 | Antelope Valley | Los Angeles Unified School District | CA |
| Marquette University HS | C | 1 | 1 | Southeast WI | Private | WI |
| Marshall High School | C | 2 | | Written Test Day (1/22) | Fairfax County Public Schools | VA |
| McNeil High IB World School | C | 2 | 2 | Texas | Round Rock ISD | TX |
| Medfield High School | C | 1 | 1 | Wentworth (Eastern MA) | Medfield | MA |
| Michael E. DeBakey High School for Health Professions | C | 2 | 2 | | Houston Independent School District | TX |
| Miller MS | B | 1 | 1 | Santa Clara County Regional Science Olympiad | Cupertino Union School District | CA |
| Miller Place HS | C | 1 | 1 | | Miller Place Schools | NY |
| Monta Vista High School | C | 2 | 2 | Santa Clara County Regional Science Olympiad | Fremont Union High School District | CA |
| North Hollywood High School | C | 1 | 1 | SoCal Joint Regional | Los Angeles Unified School District | CA |
| Northern Academy | C | 1 | 1 | Mid Hudson | Private | NY |
| Northridge High School | C | 2 | 2 | Manchester University | Middlebury Schools | IN |
| Oak Valley Middle School | B | 1 | 1 | SDSO | Poway Unified School District | CA |
| Odle Middle School | B | 1 | 1 | Regional - NW-B-East | Bellevue School District | WA |
| Osceola High School | C | 4 | 4 | Central Regional at Osceola High School | School District of Osceola County | FL |
| Palo Alto High School | C | 3 | 3 | Santa Clara County Regional Science Olympiad | Palo Alto Unified School District | CA |
| Pearson Ranch Middle School | B | 3 | 3 | Texas | Round Rock ISD | TX |
| Pocono Mountain East High School | C | 2 | 2 | Northeast Region at PSU Wilkes-Barre | Pocono Mountain School District | PA |
| Pocono Mountain East Jr. High School | B | 2 | 2 | Northeast Region at PSU Wilkes-Barre | Pocono Mountain School District | PA |
| Pocono Mountain West High School | C | 2 | 2 | Northeast Region at PSU Wilkes-Barre | Pocono Mountain School District | PA |
| Pocono Mountain West Junior High School | B | 2 | 2 | Northeast Region at PSU Wilkes-Barre | Pocono Mountain School DIstrict | PA |
| Princeton International School for Mathematics and Science | C | 3 | 3 | | Private | NJ |
| Quail Valley Middle School | B | 2 | 2 | Gulf Coast | Fort Bend ISD | TX |
| Rancho San Joaquin Middle School | B | 2 | 6 | Orange | Irvine Unified | CA |
| Redwood Middle School | B | 4 | 4 | Santa Clara County Regional Science Olympiad | Saratoga Union SD | CA |
| Reedy Creek Magnet Middle School Center for the Digital Sciences | B | 2 | 2 | North Carolina | Wake County Public School System | NC |
| Richland High School | C | 1 | 1 | | Prosper ISD | TX |
| River city Science Academy Innovation | B | 2 | 2 | Southeast Regional at Florida Atlantic University | DUVAL | FL |
| River City Science Academy M-H | C | 1 | 1 | East Regional at Stetson University | DUVAL | FL |
| River City Science Academy M-H | B | 3 | 3 | East Regional at Stetson University | DUVAL | FL |
| Riverside STEM High School | C | 2 | 2 | Inland Empire Regional | Riverside Unified School District | CA |
| Rochester Century High School | C | 3 | 3 | Minnesota | Rochester Public Schools ISD#535 | MN |
| Rouse High School | C | 6 | 6 | | Leander Independent School District | TX |
| Seven Lakes High School | C | 2 | 2 | Corpus Christi Regionals | Katy ISD | TX |
| Seven Lakes Junior High | B | 1 | 1 | Gulf Coast Regional | Katy ISD | TX |
| Sierra Vista Middle School | B | 10 | 10 | Orange County | IUSD | CA |
| Silvercreek High School | C | 2 | 2 | Santa Clara County Regional Science Olympiad | East Side Union High School District | CA |
| SOAR High School | C | 1 | 1 | | Antelope Valley Union High School District | CA |
| Solon Middle School | B | 3 | 3 | Northeast & Northern Ohio Regional Tournament | Solon City Schools | OH |
| Spring Hill Elementary School | B | 1 | 1 | National Ready UMW | Fairfax | VA |
| Springhouse Middle School | B | 1 | | Central East Region at Kutztown University | Parkland | PA |
| St. John's School | C | 1 | 1 | Rio Grande Regional | Private | TX |
| St. Joseph's Collegiate Institute | C | 1 | 1 | Lake Erie/Niagara | Private | NY |
| Suncoast Community High School | C | 2 | 2 | Southeastern Regional at Florida Atlantic University | Palm Beach School District | FL |
| Sunset High School | C | 1 | 1 | Oregon Science Olympiad | Beaverton School District | OR |
| Syosset High School | C | 1 | 1 | | Syosset CSD | NY |
| The Colony High School | C | 2 | 2 | | Lewisville Independent School District | TX |
| The Frazer School | C | 2 | 2 | Northern Regional at The Frazier School | Private | FL |
| The Frazer School | B | 4 | 4 | Northern Regional at The Frazier School | Private | FL |
| Timberline Middle School | B | 1 | 1 | | Lake Washington School District | WA |
| Travis Middle School | B | 1 | 1 | Travis Middle School | McAllen ISD | TX |
| Valencia High School (OC) | C | 2 | 2 | SoCal Joint Regional | Placentia-Yorba Linda Unified School District | CA |
| Walton High School | C | 1 | 1 | Regional Placeholder | Cobb County | GA |
| West High School | C | 2 | | PCC | Torrance Unified School District | CA |
| West Ridge Middle School | B | 2 | 2 | TX | Eanes ISD | TX |
| Westlake High School | C | 1 | 1 | Texas | Eanes ISD | TX |
| Westpark Elementary | B | 3 | 3 | Orange County Regional Science Olympiad | Irvine Unified School District | CA |
| Westside High School | C | 3 | 3 | NE Regional | Westside Community Schools | NE |
| Westview High School | C | 1 | 1 | Oregon Science Olympiad | Beaverton School District | OR |
| Westview High School | C | 6 | 6 | SDSO | Poway Unified School District | CA |
| Wichita East High School | C | 3 | 3 | | USD 259 | KS |
| Woodside High School | C | 2 | 2 | Bay Area Regional Science Olympiad | Sequoia UHSD | CA |