| Horizon Science Academy Dayton Downtown , OH (PSA) |
| Horizon Science Academy Dayton High School, OH (PSA) |
| Horizon Science Academy Elementary School, OH (PSA) |
| Horizon Science Academy Lorain, OH (PSA) |
| Horizon Science Academy Primary, OH (PSA) |
| Horizon Science Academy Toledo, OH (PSA) |
| Horizon Science Academy Twin Cities, MN (PSA) |
| Horizon Science Academy Youngstown, OH (PSA) |
| Horizon Science Academy-Cincinnati, OH (PSA) |
| Horizon Science Academy-Cleveland Middle School, OH (PSA) |
| Horizon Science Academy-Dayton, OH (PSA) |
| Horizon Science Academy-Denison Middle School, OH (PSA) |
| Horizon Science Academy-Springfield, OH (PSA) |
| Horizons Community High School, MI (PSA) |
| Hornbrook Elementary, CA (District) |
