| Abbreviation | Definition |
|---|---|
| LI | Long Island Rail Road |
| LI | Long Island Rail Road Company |
| LIBU | Lib Leasing |
| LICU | Intermodal Container Service Ltd. |
| LIMU | UTS Bernhardt Verhuizingen BV |
| LIMX | Chemical Lime |
| LIN | Louisville, Indianapolis, and Nashville |
| LINC | Lewis and Clark Railway |
| LINC | Lewis and Clark Railway Company |
| LINU | Linde AG Geschaftsbereich |
| LINX | GE Railcar Services Corporation |
| LIRC | Louisville and Indiana Railroad |
| LIRC | Louisville and Indiana Railroad Company |
| LIRR | Lapeer Industrial Railroad |
| LIRR | Long Island Rail Road |
| LIRU | Roland Ltd. |
| LISU | Lithuanian Shipping Ltd. |
| LITU | Union Resources Ltd. |
| LITX | Lite Industries |
| LITX | Lite Industries Incorporated |