| Abbreviation | Definition |
|---|---|
| WINK | M Winkworth |
| WIS | Wistron Gdr |
| WKP | Workspace Group |
| WKP | Workspace Grp. |
| WKS | Works Media |
| WLF | Wolfson Microelectronics, PLC. |
| WLW | Woolworths Group, P. L. C. |
| WMH | William Hill |
| WNER | Warner Est. |
| WOR | World Careers |
| WORK | Work Group |
| WOS | Wolseley |
| WPC | Witan Pac |
| WPP | Wpp |
| WPR | West Pioneer |
| WREN | Wren Extra Care |
| WRN | Worthington Group |
| WRN | Worthington Grp |
| WSAG | Woodburne Sq |
| WSG | Westminster |