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| BASIS Cedar Park HS | C | 1 | | TX | BASIS Charter School District | TX | |
| Benjamin N. Cardozo High School | C | 2 | | | NYCDOE District 26 | NY | |
| Brookline High | C | 1 | | Massachusetts State Science Olympiad | Brookline | MA | |
| Concord Academy | C | 1 | 1 | | Concord Academy | MA | |
| Cumberland High School | C | 2 | | | Cumberland Public Schools | RI | |
| Foothill High School | C | 2 | | Alameda Regional Science Olympiad | Pleasanton USD | CA | |
| Kelly Walsh High School | C | 2 | 2 | | Natrona County School District 1 | WY | |
| Maggie L. Walker Governor's School for Government and International Studies | C | 1 | | | Governor's School | VA | |
| NYOS Charter School | C | 1 | | University of Texas at Austin Regional | NYOS Charter School | TX | |
| South Windsor High School | C | 3 | 3 | | South Windsor High School | CT |
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| Wilton High School | C | 3 | | | Wilton Public Schools | CT | |