| Abbreviation | Definition |
|---|---|
| JAMS | Jameson Inns, Inc. |
| JAMSO | Jameson Inns, Inc. |
| JAMSP | Jameson Inns, Inc. Preferred |
| JANNF | Jannock, LTD. |
| JANX | Janex International, Inc. |
| JAPNY | Japan Air Lines, LTD. |
| JARLY | Jardine Matheson Holding, LTD. |
| JASN | Jason, Inc. |
| JAWZ | Jaws Technologies, Inc. |
| JAYA | Jayark Corporation |
| JAYJD | Jay Jacobs, Inc. |
| JAZZ | Jazztel, P. L. C. |
| JBAK | J. Baker, Inc. |
| JBFS | Jersey Bank For Savings |
| JBHT | J. B. Hunt Transportation Services, Inc. |
| JBLU | JetBlue Airways |
| JBOH | J B Oxford Holdings, Inc. |
| JBRD | J Bird Music Group, LTD. |
| JBSS | John B SanFilippo & Son |
| JCBS | Jacobson Stores, Inc. |