| 1 | RGX | Rotary Gasoline Co. (Highway Oil Refining Corp.) | 7/1923-7/1930 | | NAKINA |
| 2 | RGX | HIGHWAY OIL REFINING CO. [ROTARY GASOLINE CO.] | | | PWRC |
| 3 | RGXC | REGIONAL EXPRESS COURIER LLC | | | SCAC4 |
| 4 | RGXE | RIGGENS EXPRESS INC | | | SCAC4 |
| 5 | RGXI | REGAL TRANSPORTATION INC | | | SCAC4 |
| 6 | RGXL | RIEGEL TRANSPORTATION INDUSTRIES LL | | | SCAC4 |
| 7 | RGXO | RG TRANSPORT | | | SCAC4 |
| 8 | RGXP | REGENT EXPRESS INC | | | SCAC3 |
| 9 | RGXS | ROGER EXPRESS SA DE CV | | | SCAC4 |
| 10 | RGXT | RGX TRANSPORTE DE CARGA INTERNACION | | | SCAC4 |
| 11 | RGXV | ROGUE TRANSPORTATION (REEFER DIVISI | | | SCAC4 |
