| Abbreviation | Definition |
|---|---|
| VTTX | TTX Corporation |
| VUHX | Wagner Mills |
| VUHX | Wagner Mills Incorporated |
| VULX | Vulcan Materials Company Construction Materials Group |
| VULX | Vulcan Materials Southeast Division |
| VWCX | Railcar Leasing Specialists Incorporated |
| VWCX | Vernon Warehouse |
| VYMX | Voith Hydro |
| VYMX | Voith Hydro Incorporated |
| W/L | Whistle Level Crossing ahead |
| WA | CSX Transportation Incorporated (formerly Western Railway of Alabama) |
| WA | Western Railway of Alabama (CSX Transportation) |
| WAB | Norfolk Southern Railway Company |
| WAB | Wabash Railroad (Norfolk Southern) |
| WABZ | W T L Rail Corporation |
| WABZ | WTL Rail Corporation |
| WACR | Washington County Railroad |
| WACR | Washington County Railroad Corporation |
| WACX | Albright and Wilson Company |
| WACX | Willard Agricultural Co. (PCS Phosphate) |