| Abbreviation | Definition |
|---|---|
| JLL | Jones Lang LaSalle |
| JLRA | James Longrigg Rope Access |
| JLRD | Johnson, Levinson, Ragan, Davila, Inc. |
| JLVM | Jordan Light Vehicle Manufacturing |
| JLVP | Jerry LaPointe Video Productions |
| JM | Johns Manville |
| JMA | Jack Matthews and Associates |
| JMC | Jiangling Motors Corporation |
| JMC | Jianling Motor Corporation |
| JMC | Jim Melton Cyclery |
| JMC | Jupiter Mining Corporation |
| JMCC | Joseph McKinstry Construction Company |
| JMCG | Jiangling Motors Corporation Group |
| JME | John Marchel Enterprises |
| JMH | John Marchel Enterprises |
| JMI | Jim's Mobile Inc |
| JMI | Just Marketing Inc |
| JMMC | Jones Metal Molding Company, Inc. |
| JMMD | Jeffrey Mining Machinery Division |
| JMP | Jackson Marking Products |