| 1 | WCS | Wagon Center Süd GmbH | | AT | VKM |
| 2 | WCSA | WORLD CLASS SHIPPING INC | | | SCAC4 |
| 3 | WCSC | WEBB CHEMICAL SERVICE CORPORATION | | | SCAC4 |
| 4 | WCSE | WORLD COMMERCE SERVICES LLC | | | SCAC4 |
| 5 | WCSJ | WILLIAMS CRANE SERVICE INC | | | SCAC4 |
| 6 | WCSL | WRIGHT, CAROL SALES | | | SCAC4 |
| 7 | WCSN | WCS TRUCKING CO INC | | | SCAC4 |
| 8 | WCSU | WCS SANTANGELO GMBH | | D | BIC |
| 9 | WCSU | WCS WILHELMSBURGER CONTAINER SERVIC | | | SCAC4 |
| 10 | WCSW | WEST COAST SHIPPING INC | | | SCAC4 |
| 11 | WCSX | Wheelabrator Coal Services Co. | added 10/1985; 1/1994-7/2000; eliminated 4/2001 | | NAKINA |
| 12 | WCSX | Savage-Tolk Energy Services | added 4/2001; eliminated 4/2004 | | NAKINA |
| 13 | WCSX | General Electric Railcar Services | added 4/2004; 7/2005 | | NAKINA |
| 14 | WCSX | Wheelabrator Coal Services Co. | 1/94-7/2000; eliminated 4/2001 | | NRHS |
| 15 | WCSX | Savage-Tolk Energy Services | added 4/2001 | | NRHS |
| 16 | WCSX | GENERAL ELECTRIC RAIL SERVICES (SAVAGE-TOLK ENERGY SERVICES [WHEELABRATOR COAL SERVICES]) | | | PWRC |
| 17 | WCSX | Savage-Tolk Energy Services (GE Rail Services) | | | RSRV |
| 18 | WCSX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |
| 19 | WCSY | WORLD CARTAGE SYSTEMS LTD | | | SCAC4 |
| 20 | WCSZ | WASTE CONTROL SPECIALIST, LLC | | | PWRC |
