| Republic County, KS (ISD) |
| Republic R-Iii, MO (District) |
| Republic School District, WA (District) |
| Republic-Michigamme Schools, MI (District) |
| Rescue Union Elementary, CA (District) |
| Research Based Education Corporation, AZ (District) |
| Research Triangle Charter, NC (District) |
| Reserve Public Schools, NM (District) |
| Responsive Ed Solutions Northwest Ark Classical Academy, AR (PSA) |
| Responsive Ed Solutions Premier High School Of Little Rock, AR (PSA) |
| Responsive Ed Solutions Quest Middle School Of Pine Bluff, AR (PSA) |
| Responsive Education Solutions Quest Middle School Of Little Rock, AR (PSA) |
| Restore Tech Academy, TX (PSA) |
| Resurgence Hall Charter School, GA (PSA) |
| Resurgence Hall Middle Academy, GA (PSA) |
