| International Commerce Secondary Schools Inc., AZ (District) |
| International Falls School District, MN (District) |
| International Leadership Charter School, NY (PSA) |
| International Leadership Of Texas (Ilt), TX (PSA) |
| International School At Mesa Del Sol, NM (PSA) |
| International School Of Columbus, IN (District) |
| International School Of Louisiana, LA (District) |
| International Spanish Language Acad, MN (District) |
| Interstate 35 Comm School District, IA (District) |
| Intrinsic 2 Charter High Schoo, IL (PSA) |
| Invent Learning Hub, IN (District) |
| Inver Grove Heights Schools, MN (District) |
| Invictus Classical Academy, MI (PSA) |
| Invictus High School, OH (PSA) |
| Invictus Preparatory Charter School, NY (PSA) |
