| 1 | RKM | RAK Airways | IATA: RT, Callsign: Rakair, Founded in 2006. Suspended operations 01 January 2014. Desigantor RT recalled by IATA | UAE | AVCODES |
| 2 | RKM | RAK Airways | | | ICAO1 |
| 3 | RKMC | ROKUCHU MARINE CORPORATION | | | SCAC3 |
| 4 | RKMC | ROCKY MOUNTAIN CARGO LLC | | | SCAC4 |
| 5 | RKMD | ROCKY MOUNTAIN DELIVERY & TRANSPORT | | | SCAC3 |
| 6 | RKMI | ROCKET MESSENGER SERVICE INC | | | SCAC3 |
| 7 | RKMI | RK MACHINE INC | | | SCAC4 |
| 8 | RKMK | RICKMAN TRUCKING CO INC | | | SCAC4 |
| 9 | RKML | ROCKY MOUNTAIN LIVESTOCK TRUCKING I | | | SCAC3 |
| 10 | RKMM | ROCKY MOUNTAIN MOVING & STORAGE INC | | | SCAC3 |
| 11 | RKMN | RKM EQUIPMENT & TRUCKING INC | | | SCAC3 |
| 12 | RKMO | ROCKY MOUNTAIN FREIGHT CONSOLIDATOR | | | SCAC3 |
| 13 | RKMP | RKM TRANSPORT | | | SCAC3 |
| 14 | RKMP | ROCK BOTTOM EXPRESS | | | SCAC4 |
| 15 | RKMR | ROCKY MOUNTAIN RENTAL | | | SCAC3 |
| 16 | RKMR | REKORD MARINE ENT LTD | | | SCAC4 |
| 17 | RKMS | ROCKY MOUNTAIN SHIPPERS | | | SCAC3 |
| 18 | RKMU | TARASCONI TRASPORTI SRL | | | SCAC4 |
| 19 | RKMV | ROCKEYS MOVING & STORAGE LLC | | | SCAC4 |
| 20 | RKMW | Chicago, Rock Island and Pacific R.R. Co. | 1/1980 | | NAKINA |
| 21 | RKMW | Chicago, Rock Island and Pacific R.R. Co. | Jan-80 | | NRHS |
| 22 | RKMW | CHICAGO, ROCK ISLAND & PACIFIC RAILROAD (ROCK ISLAND), MILWAUKEE ROAD OPERATIONS | | | PWRC |
| 23 | RKMW | Chicago, Rock Island and Pacific Railroad | | | RSRV |
