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| Abington Heights Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Abington Heights School District | PA | |
| Alamo Heights Junior School | B | 2 | Rio Grande Regional | Alamo Heights ISD | TX |
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| Anthony Middle School | B | 2 | Gulf Coast Regional | Cypress-Fairbanks ISD | TX |
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| Bala Cynwyd Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Lower Merion School District | PA | |
| BASIS MS | B | 1 | | San Jose School District | CA | |
| Bedford Middle School | B | 2 | n/a | Westport Public Schools | CT | |
| Bonham | B | 2 | University of Texas Regional | Amarillo ISD | TX | |
| Boyceville Middle School | B | 3 | | Boyceville Community School District | WI |
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| Burleigh Manor MS | B | 3 | Central Maryland Region; Div. B | Howard County Public School System | MD | |
| Carmel Valley Middle School | B | 1 | San Diego Regional Tournament 2 | San Dieguito Unified School District | CA |
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| Carrie Palmer Weber Middle School | B | 1 | | Port Washington | NY | |
| Cedar Springs Homeschool | B | 1 | | Knox County | TN |
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| Chaboya MS | B | 1 | Santa Clara County Regional Science Olympiad | Evergreen School District | CA | |
| CJ Hooker Middle School | B | 2 | | Goshen | NY | |
| Clarksville MS | B | 3 | Central Maryland Region; Div. B | Howard County Public Schools | MD | |
| Coleytown Middle School | B | 1 | | Westport CT | CT | |
| Cooper Middle School | B | 2 | Second VA Regional (2/6) | Fairfax County Public Schools | VA | |
| Detroit Country Day School | B | 3 | | Detroit Country Day School | MI | |
| Dodgen Middle School | B | 2 | | Cobb County | GA | |
| Eagle View Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Cumberland Valley School District | PA | |
| Eudora Middle School | B | 1 | NE KS Satellite SO Regional | Eudora Schools USD 491 | KS | |
| Frost Middle School | B | 3 | | Fairfax County Public Schools | VA | |
| Fulton Science Academy | B | 1 | Georgia | Private | GA | |
| G.A. Stetson Middle School | B | 2 | Mini Satellite Hybrid SO Regional | West Chester | PA | |
| Goshen Central School- CJH Middle School | B | 2 | | Goshen Central School District | NY |
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| Great Neck South Middle School | B | 2 | | Great Neck | NY |
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| Greene MS | B | 1 | Santa Clara County Regional | Palo Alto Unified School District | CA | |
| Harlan Rowe Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Athens Area School District | PA | |
| Highlands Intermediate School | B | 3 | HSSO Div B Regional | Leeward District | HI | |
| Homeschool Science Colorado | B | 1 | Colorado All-Regional | Homeschool | CO |
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| Howard L. Goff Middle School | B | 2 | Rustin Invitational | East Greenbush Central School District | NY | |
| J. R. Fugett Middle School | B | 2 | Mini Satellite Hybrid SO Regional | West Chester Area School District | PA | |
| Jeffrey Trail Middle School | B | 1 | Orange County | Irvine Unified School District | CA | |
| John F. McCloskey School | B | 1 | Mini Satellite Hybrid SO Regional | School District of Philadelphia | PA | |
| Kennedy Middle School | B | 4 | Santa Clara County Regional Science Olympiad | Cupertino Union School District | CA |
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| Kraemer Middle School | B | 3 | Orange County | Placentia Unified | CA | |
| Kutztown Area Middle School | B | 1 | Mini Satellite Hybrid SO Regional | Kutztown Area School District | PA | |
| Lake Braddock Middle School | B | 2 | | Fairfax County Public Schools | VA | |
| Longfellow Middle School | B | 2 | | Fairfax County Public Schools | VA | |
| Manhattan Youth-The Salk School of Science | B | 3 | | 02 | NY | |
| Mesa Robles School | B | 1 | Los Angeles - South | Hacienda La Puente USD | CA | |
| Metrolina Regional Scholars Academy | B | 2 | | Metrolina Regional Scholars Academy NCES District ID: 3700107 | NC | |
| Miller MS | B | 3 | Santa Clara Regional | Cupertino Union School District | CA | |
| Mountain View Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Cumberland Valley School District | PA | |
| North Bethesda Middle School | B | 1 | Central Maryland Region; Div. B | Montgomery County Public Schools | MD | |
| North Pocono Middle School | B | 2 | Mini Satellite Hybrid SO Regional | North Pocono School District | PA | |
| Osceola Science Charter School | B | 2 | | The School District of Osceola County | FL |
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| Saint Leo the Great Catholic School | B | 3 | Mini Satellite Hybrid SO Regional | Diocese of Harrisburg | PA | |
| Sartartia Middle School | B | 2 | Gulf Coast Regional | Fort Bend ISD | TX | |
| Seminole Science Charter School | B | 1 | Eastern Regional Satellite SO | Seminole | FL | |
| Seven Lakes Junior High | B | 2 | Gulf Coast Regional | Katy ISD | TX | |
| Shady Side Academy Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Independent | PA | |
| Sierra Vista Middle School - IUSD | B | 3 | Orange County | IUSD | CA | |
| Springhouse Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Parkland | PA | |
| Springton Lake Middle School | B | 1 | Mini Satellite Hybrid SO Regional | Rose Tree Media | PA | |
| St. Ann | B | 2 | | Red Clay | DE | |
| STEAMHeat | B | 1 | | Homeschooling | TN | |
| Strath Haven Middle School | B | 1 | Mini Satellite Hybrid SO Regional | Wallingford Swarthmore | PA | |
| The Bay Academy | B | 2 | NY | District 21 NYC DOE | NY |
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| Tilden Middle School | B | 1 | | Montgomery County Public Schools | MD | |
| Tredyffrin/Easttown Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Tredyffrin-Easttown | PA | |
| Wallenpaupack Middle School | B | 1 | Mini Satellite Hybrid SO Regional | Wallenpaupack School District | PA | |
| Warwick Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Warwick School District | PA | |
| Wayne Highlands Middle School | B | 1 | Mini Satellite Hybrid SO Regional | Wayne Highlands School District | PA | |
| Welsh Valley Middle School | B | 2 | Mini Satellite Hybrid SO Regional | Lower Merion School District | PA | |
| Western Center Academy | B | 1 | Inland Empire | Hemet Unified | CA | |
| Whitehall Coplay Middle School | B | 1 | Mini Satellite Hybrid SO Regional | Whitehall | PA | |
| Winston Churchill Middle School | B | 3 | Sacramento Regional Science Olympiad | San Juan Unified School District | CA | |