| 1 | GRX | Aircompany Grodno | Callsign: Grodno, | BY | AVCODES |
| 2 | GRX | Aircompany Grodno | | | ICAO1 |
| 3 | GRX | Grandfield Oil & Refining Co. | 7/1923 | | NAKINA |
| 4 | GRX | GRANDFIELD OIL & REFINING CO. | | | PWRC |
| 5 | GRXC | GREER TRANSPORT LLC | | | SCAC4 |
| 6 | GRXO | GIROUX OIL CO INC | | | SCAC4 |
| 7 | GRXQ | G & R AUTO TRANSPORT INC | | | SCAC4 |
| 8 | GRXS | GRAND RIVER ENTERPRISES SIX NATIONS | | | SCAC4 |
| 9 | GRXT | GUERRA TRANSPORT | | | SCAC4 |
| 10 | GRXU | GOODRICH MARITIME PRIVATE LIMITED | | IND | BIC |
| 11 | GRXU | GOODRICH MARITIME PRIVATE LIMITED | | | SCAC4 |
