| Abbreviation | Definition |
|---|---|
| JBHZ | J. B. Hunt Transport, Incorporated |
| JBHZ | J.B. Hunt Transport |
| JBKU | Specialty Trailer Leasing |
| JBPX | PacifiCorp Electric Operations and Idaho Power Company - Jim Bridger Project |
| JBPX | PacifiCorp Electric Operations and Idaho Power Jim Bridger Project |
| JBR | James Bay Railway |
| JBRX | Bakery Trading |
| JBRX | Bakery Trading Company |
| JBTU | Jumbotainer BV Barendecht |
| JCDX | Jefferson County Drainage District No. 6 |
| JCEX | John S. Carlson and |
| JCIX | Jones Chemicals |
| JCLX | Mid-Am Equipment |
| JCLX | Mid-Am Equipment Incorporated |
| JCMX | James C. McCanless |
| JCSX | Heritage Operating L. P. |
| JCSX | Sawyer Gas of Jacksonville (Amerigas Propane) |
| JDIX | Jim Dobbas |
| JDIX | Jim Dobbas Incorporated |
| JDMX | Joseph Transportation |