| | | | | | |
| Advanced Technologies Academy | C | 2 | | Nevada Science Olympiad | Clark County School District | NV |
| Apple Valley HS | B | 2 | 2 | SoCal Joint Regional | Apple Valley Unified | CA |
| Basis Cedar Park | C | 1 | 1 | San Antonio Regional at Texas A&M | Basis Charter School District | TX |
| Basis Cedar Park | B | 4 | | UT Austin | Charter | TX |
| BASIS HS | C | 2 | | Santa Clara County Regional Science Olympiad | San Jose School District | CA |
| Beverly Hills High School | C | 1 | | SoCal Joint Regional | Beverly Hills Unified School District | CA |
| Calumet High School | C | 1 | 1 | Michigan Science Olympiad Regional 1 | CLK Public Schools | MI |
| Castaic High School | C | 2 | 2 | SoCal Joint Regional | William S. Hart Union School District | CA |
| Chaboya Middle School | B | 2 | | Santa Clara County Regional Science Olympiad | Evergreen School District | CA |
| Coleytown Middle School | B | 1 | | | Westport CT | CT |
| Colvin Run Elementary School | B | 1 | | Fairfax | Fairfax County | VA |
| Davidson Academy of Nevada | C | 2 | 2 | Nevada Science Olympiad | Washoe County | NV |
| Dublin High School | C | 1 | | | Dublin USD | CA |
| Edgewood High School | C | 1 | 1 | SoCal Joint Regional | West Covina Unified | CA |
| Edgewood Middle School | B | 2 | 2 | SoCal Joint Regional | West Covina Unified | CA |
| Etiwanda High School | C | 1 | | | Chaffey Joint Union High School District | CA |
| Evergreen Valley HS | C | 1 | | Santa Clara County Regional Science Olympiad | East Side Union High School District | CA |
| Farragut High School | C | 2 | 2 | East Tennessee State University Regional | Knox County Schools | TN |
| Flintridge Sacred Heart Academy | C | 2 | 2 | SoCal Joint Regional | Independent | CA |
| Francis Walsh Intermediate School | B | 1 | 1 | Connecticut | Branford Public Schools | CT |
| Fugett Middle School | B | 2 | | Southeast Regional at PSU Abington | West Chester Area School District | PA |
| Hampden Charter School of Science - West | C | 1 | | Massachusetts State Science Olympiad | Hampden Charter | MA |
| Homeschool Science Colorado | B | 2 | 2 | Colorado Southern Regional | Homeschool | CO |
| Homeschool Science Colorado | C | 1 | 1 | Colorado Southern Regional | Homeschool | CO |
| Jay M. Robinson | B | 1 | | Charlotte | Charlotte Mecklenburg | NC |
| Jordan High School | C | 1 | | Gulf Coast Regional | Katy ISD | TX |
| Kennedy Middle School | B | 5 | | Santa Clara County Regional Science Olympiad | Cupertino Union School District | CA |
| Kickemuit Middle School | B | 1 | | Rhode Island Science Olympiad | Bristol Warren Regional | RI |
| Los Alamitos High School | C | 2 | 2 | SoCal Joint Regional | Los Alamitos Unified School District | CA |
| Lynbrook HS | C | 2 | | Santa Clara County Regional Science Olympiad | Fremont Union High School | CA |
| Martin Luther King High School | C | 2 | 2 | SoCal Joint Regional | Riverside Unified School District | CA |
| Miller Middle School | B | 3 | 3 | Santa Clara County Regional Science Olympiad | Cupertino Union School District | CA |
| Monta Vista High School | C | 2 | | Santa Clara County Regional Science Olympiad | Fremont Union High School District | CA |
| Newbury Park High School | C | 2 | | SoCal Joint Regional | Conejo Valley Unified School District | CA |
| Ocean Air School | B | 5 | | SDSO | Del Mar Union School District | CA |
| Orange County School of the Arts | C | 1 | 1 | SoCal Joint Regional | independent charter | CA |
| Orlando Science Middle School | B | 2 | | Central Regional at Olympia High School (Orlando) | Orange | FL |
| Osceola Science Charter School | B | 2 | 2 | Eastern Regional at Embry Riddle Aeronautical University | The School District of Osceola County | FL |
| Pacific Academy - Irvine | C | 1 | 1 | Pacific Academy - Irvine | Private School | CA |
| Pacifica Christian High School | C | 1 | 1 | Los Angeles | Santa Monica-Malibu Unified | CA |
| Plainfield North High School | C | 2 | 2 | Illinois Regional | Plainfield School District 202 | IL |
| Quail Valley MS | B | 2 | | SoCal Joint Regional | Snowline Unified | CA |
| Questa | B | 2 | | Northern California Science Olympiad | Lammersville USD | CA |
| Quince Orchard High School | C | 1 | | MSO Regional Div C West | Montgomery County Public Schools | MD |
| Riverside STEM High School | C | 2 | 2 | SoCal Joint Regional | Riverside Unified School District | CA |
| Saint Johnsbury Academy | C | 1 | 1 | Vermont State SO | Saint Johnsbury | VT |
| South Pasadena High School | C | 2 | 2 | SoCal Joint Regional | South Pasadena Unified School District | CA |
| STEAM HEAT Homeschooling Group | B | 1 | | Southwest Tennessee Community College Regional | Homeschool Tipton County | TN |
| Stoller Middle School | B | 3 | | Oregon Science Olympiad | Beaverton School District | OR |
| Stratford Preparatory Blackford | B | 1 | 1 | Santa Clara County Regional Science Olympiad | Private | CA |
| Stratford Preparatory Blackford | C | 1 | 1 | Santa Clara County Regional Science Olympiad | Private | CA |
| The Science Academy STEM Magnet | C | 2 | | SoCal Joint Regional | Los Angeles Unified School District | CA |
| Thornton Middle School | B | 3 | | | Fremont USD | CA |
| Timberline Middle School | B | 5 | | Regional - Southwest (Division B) | Lake Washington School District | WA |
| Vista Murrieta High School | C | 1 | | SoCal Joint Regional | Murrieta Unified School District | CA |
| Warwick High School | C | 1 | | Central Region at Millersville University | Warwick School District | PA |
| Wasatch High School | C | 1 | | Utah Science Olympiad | Wasatch County School District | UT |
| Washington Middle School | B | 1 | 1 | Michigan Science Olympiad Region 1 | CLK Public Schools | MI |
| Wilmington Academy of Arts & Sciences | B | 1 | 1 | Wilmington Regional | Wilmington Academy of Arts & Sciences | NC |
| Windemere Ranch Middle School | B | 4 | 4 | | San Ramon Valley USD | CA |
| Wyoming High school | C | 1 | | Southwestern Ohio Science Olympiad | Wyoming City Schools | OH |