| Abbreviation | Definition |
|---|---|
| JWZ | J. W. Zunino & Associates, Inc. |
| JXT | Jing Xing Technologies |
| JY | Johnstone Yachts |
| JY | Junk Yard |
| JYA | Jack Yan & Associates |
| JYC | JinYang Corporation |
| JYC | Jivamukti Yoga Center |
| JYFI | Jefferson Youth Foundation Inc |
| JYS | Juneau Youth Services, Inc. |
| JYT | Just Your Type |
| JZL | Judy Zoelzer Levine, Fiber Artist |
| JZM | Johnston, Zabor, McManus |
| K | Kinko's |
| K&K | Kelly & Karras, Ltd. |
| KAAC | Kaiser Alumina Australia Corporation |
| KAAC | Kimberley Aquaculture Aboriginal Corporation |
| KAAS | Khalid A. Al Shathry Group |
| KABA | Kenosha Area Business Alliance |
| KABB | Kathleen's American Bistro Bar |
| KABB | Kristeligt Arbejde Blandt Blinde |