| Abbreviation | Definition |
|---|---|
| JMP | Jet Model Products |
| JMP | Jim Marshall Products |
| JMP | Jolson Merchant Partners |
| JMPC | J. Mess Plumbing Company, Oakville, Missouri |
| JMPE | John Maloney, Professional Engineer, Santa Barbara, California |
| JMPH | Jim Meyer Plumbing and Heating |
| JMPH | Joe Mumford Plumbing and Heating Company |
| JMPI | Jeff Mitchell Private Investigators |
| JMPL | Jingslink Marketing Pte Ltd |
| JMTC | John Montgomery Theatre Company |
| JMTC | Johns Manville Technical Center |
| JMTC | Johnson Matthey Technology Centre |
| JMW | John M. Williams |
| JNE | John Nance Entertainment |
| JNR | Japanese National Railways |
| JNRI | Jin Navitas Resource Inc |
| JOB | Just On Board |
| JOC | Jiangsu Overseas group Corporation |
| JOC | Jose Olive Civit |
| JOEL | Jerusalem Oil Exploration Ltd |