| 21St Century Charter Sch Of Gary, IN (District) |
| 21St Century Cyber Cs, PA (PSA) |
| 21St Century Preparatory School Agency, WI (PSA) |
| 21ST Century Public Academy, NM (PSA) |
| A Center For Creative Education, AZ (District) |
| A Child'S View School Inc., AZ (District) |
| A E R O Spec Educ Coop, IL (District) |
| A W Beattie Career Center, PA (District) |
| A W Brown-Fellowship Leadership Academy, TX (PSA) |
| A-C Central CUSD 262, IL (District) |
| A.C.G.C., MN (District) |
| A.E. Phillips Laboratory School, LA (District) |
| A+ Academy, TX (PSA) |
| A+ Arts Academy, OH (PSA) |
| A+ Children's Academy, OH (PSA) |
