| 1 | JLM | Atlantic Express Airlines | IATA: 4X, Callsign: Atlantic Express, Commenced operation on 16 December 2004. Ceased operations | WAG | AVCODES |
| 2 | JLM | Atlantic Express Airlines | Callsign: Atlantic Gambia, | WAG | AVCODES |
| 3 | JLMB | J L M BROKERAGE INC | | | SCAC4 |
| 4 | JLMG | JLM TRUCKING LLC | | | SCAC4 |
| 5 | JLMI | JEFFERSON LANDMARK INC | | | SCAC4 |
| 6 | JLMO | J & L MOTOR X-PRESS INC | | | SCAC4 |
| 7 | JLMP | JLM TRANSPORT | | | SCAC4 |
| 8 | JLMR | JLM TRANSPORT SERVICES INC | | | SCAC4 |
| 9 | JLMT | JELLEMA TRANSPORTATION LLC | | | SCAC4 |
| 10 | JLMU | JAPAN LINE, LTD | | | PWRC |
| 11 | JLMU | Japan Line | | | RSRV |
| 12 | JLMX | John. L. McCarthy | added 7/1983; eliminated 1/1990 | | NAKINA |
| 13 | JLMX | John. L. McCarthy | eliminated 1/90 | | NRHS |
| 14 | JLMX | JOHN L. McCARTHY | | | PWRC |
| 15 | JLMX | John L. McCarthy | | | RSRV |
