| LINC | Lincoln Educational Services |
| AACG | ATA Creativity Global |
| STG | Sunlands Technology Group |
| CLEU | China Liberal Education |
| STRA | Strategic Education |
| LAUR | Laureate Education |
| APEI | American Public Education |
| LOPE | Grand Canyon Education |
| BEDU | Bright Scholar Education |
| UTI | Universal Technical Institute |