| 1 | MRW | Aviation Company "Mars RK" Ltd. | IATA: 6V, Callsign: Aviamars, Founded in 2001. Designator 6V recalled by IATA. | UA | AVCODES |
| 2 | MRW | Mars RK | IATA: 6V | | ICAO1 |
| 3 | MRWA | MILES, RUDOLPH WAREHOUSE INC | | | SCAC4 |
| 4 | MRWA | Midland Railway of Western Australia | | AUS | TRAFFIC |
| 5 | MRWC | M R LOGISTICS LLC | | | SCAC4 |
| 6 | MRWF | MOORE, W FRANK INC | | | SCAC4 |
| 7 | MRWI | MEADOR WAREHOUSE & DISTRIBUTION INC | | | SCAC4 |
| 8 | MRWJ | MERCURY TRANSPORT INC | | | SCAC4 |
| 9 | MRWN | MULLINS, | | | SCAC4 |
| 10 | MRWR | MOUNT-ROYAL WALSH INC | | | SCAC4 |
| 11 | MRWS | MORROWS MOVING & STORAGE (1976) LTD | | | SCAC4 |
