| Abbreviation | Definition |
|---|---|
| LCWX | LCP Chemicals-West Virginia |
| LDAX | Louisiana Agricultural Finance Authority |
| LDCX | Louis Dreyfus Corporation |
| LDRR | Louisiana and Delta Railroad |
| LDRR | Louisiana and Delta Railroad Incorporated |
| LDRT | Lake Front Dock and Railroad Terminal |
| LDSX | Lambton Diesel Specialists |
| LDSX | Lambton Diesel Specialists Incorporated |
| LDTC | Lawndale Transportation |
| LE | Louisiana Eastern Railroad |
| LECU | Lehigh Equipment |
| LECX | Leco Corporation |
| LEDR | Level Encoded Dual Rail |
| LEE | Lake Erie and Eastern Railroad |
| LEF | Lake Erie Franklin and Clarion Railroad Company |
| LEF | Lake Erie, Franklin and Clarion Railroad |
| LEFX | Greenville Leasing |
| LEFX | Greenville Leasing Company |
| LEN | Lake Erie and Northern Railway |
| LEN | Lake Erie and Northern Railway Company |