| 1 | WIIA | WESCO INTERNATIONAL INC | | | SCAC4 |
| 2 | WIIG | W & I LEASING | | | SCAC4 |
| 3 | WIIL | WILLIAMS, SHAUN TRUCKING | | | SCAC4 |
| 4 | WIIN | WAYCON INNOVATION INC | | | SCAC4 |
| 5 | WIIP | WILLPAK INDUSTRIES INC | | | SCAC4 |
| 6 | WIIQ | WII TRANSPORT INC | | | SCAC4 |
| 7 | WIIX | Williamette Industries, Inc. | added 10/1991; eliminated 4/1992 | | NAKINA |
| 8 | WIIX | Williamette Industries, Inc. | added 4/1992; 1/1994-7/2000; eliminated 4/2003 | | NAKINA |
| 9 | WIIX | Weyerhaeuser Co. | added 1/2004; 7/2005; eliminated 10/2008 | | NAKINA |
| 10 | WIIX | Domtar | added 10/2008 | | NAKINA |
| 11 | WIIX | Williamette Industries, Inc. | added 10/91; eliminated 4/92 | | NRHS |
| 12 | WIIX | Williamette Industries, Inc. | added 4/92; 1/94-7/2000 | | NRHS |
| 13 | WIIX | *WEYERHAEUSER CO. [WILLIAMETTE INDUSTRIES] | | | PWRC |
| 14 | WIIX | +DOMTAR | | | PWRC |
| 15 | WIIX | Williamette Industries | | | RSRV |
| 16 | WIIX | WEYERHAEUSE | | | SCAC4 |
| 17 | WIIZ | WILLIAMETTE INDUSTRIES | | | PWRC |
