| 1 | LJM | Rutair Limited d/b/a Jam Air Link Express Limited | IATA: J0, Callsign: Cool Runnings, | JA | AVCODES |
| 2 | LJM | Landeryds Järnvägsmuseum | | SE | VKM |
| 3 | LJMC | LJ AND M TRUCKING | | | SCAC4 |
| 4 | LJMD | LANGE, JESSE M DISTRIBUTOR INC | | | SCAC4 |
| 5 | LJMF | LACROIX, J M & FILS INC | | | SCAC4 |
| 6 | LJMS | L & J MOVING & STORAGE INC | | | SCAC4 |
| 7 | LJMX | L.J. & M. Laplace | eliminated 10/1953; added 4/1954; 7/1954-1/1975 | | NAKINA |
| 8 | LJMX | L.J. & M. Laplace | eliminated 10/53; added 4/54; 10/57-1/75 | | NRHS |
| 9 | LJMX | L. J. & M. LAPLACE | | | PWRC |
| 10 | LJMX | LAPLACE L J & M | | | SCAC3 |
