| 1 | WREA | WARREN TRUCKING INC | | | SCAC4 |
| 2 | WREC | WAMEGO RECYCLING | | | SCAC4 |
| 3 | WREE | WILLYS RECYCLE | | | SCAC4 |
| 4 | WREH | WAGNER, REINHART | | | SCAC4 |
| 5 | WREL | WILBUR-ELLIS COMPANY | | | SCAC4 |
| 6 | WRER | WILLOW RANGE ENTERPRISES | | | SCAC4 |
| 7 | WREX | Western Railroad Equipment Co. | added 1/1999; 7/2000-7/2005 | | NAKINA |
| 8 | WREX | Western Railroad Equipment Co. | added 1/99; 7/2000 | | NRHS |
| 9 | WREX | WESTERN REFRIGERATOR EXPRESS [WESTERN RAILROAD EQUIPMENT COMPANY] | | | PWRC |
| 10 | WREX | Western Refrigerator Express | | | RSRV |
| 11 | WREX | WESTERN RAILROAD EQUIPMENT COMPANY | | | SCAC4 |
| 12 | WREY | WORLEY TRANSPORTATION INC | | | SCAC4 |
| 13 | WREZ | WESTERN RAILROAD EQUIPMENT COMPANY | | | SCAC4 |
