| 1 | SCS | Charters (South African Non Schedules Airways (PTY) Ltd.) | Callsign: Southern Charters, | ZA | AVCODES |
| 2 | SCS | South African Non Scheduled Airways | | | ICAO1 |
| 3 | SCS | SQUAW CREEK SOUTHERN RAILROAD | | | PWRC |
| 4 | SCS | SQUAW CREEK SOUTHERN RAILROAD | | | SCAC4 |
| 5 | SCSA | STAINLESS STEEL ACCESSORIES MFG INC | | | SCAC4 |
| 6 | SCSB | SUN COAST CARRIERS INC | | | SCAC4 |
| 7 | SCSD | SHOWCASE INTERIORS INC | | | SCAC4 |
| 8 | SCSE | Stagecoach Selkent | City: London | GB | TRAFFIC |
| 9 | SCSF | SEACORE SEAFOOD INC | | | SCAC4 |
| 10 | SCSI | SOUTHERN CHRISTIAN TRANSPORTATION I | | | SCAC4 |
| 11 | SCSK | STEWART CONNECTOR SYSTEMS DE MEXICO | | | SCAC4 |
| 12 | SCSO | STRATTON COMMUNITY STORE | | | SCAC4 |
| 13 | SCSR | SECURITY STORAGE & MOVING SERVICE O | | | SCAC4 |
| 14 | SCST | Seaboard Transportation Co., a Wholly Owned Subsidiary of the Seaboard Coast Line R.R. Co. | 1/1994-7/2005 | | NAKINA |
| 15 | SCST | Seaboard Transportation Co., a Wholly Owned Subsidiary of the Seaboard Coast Line R.R. Co. | 1/94-7/2000 | | NRHS |
| 16 | SCST | SEABOARD TRANSPORTATION COMPANY {SEABOARD COAST LINE RAILROAD} | | | PWRC |
| 17 | SCST | Seaboard Transportation (CSX Transportation) | | | RSRV |
| 18 | SCST | SUN COAST CARRIERS INC | | | SCAC4 |
| 19 | SCSU | CARU CONTAINERS BV | | NL | BIC |
| 20 | SCSU | CIE FLUVIALE ET MARITIME DE TRANSPO | | | SCAC3 |
| 21 | SCSU | CIE FLUVIALE ET MARITIME DE TRANSPO | | | SCAC4 |
| 22 | SCSV | SPORTS CAR SHOP | | | SCAC4 |
| 23 | SCSX | The CIT Group/Capital Finance, Inc. | added 10/1998; 7/2000-7/2005 | | NAKINA |
| 24 | SCSX | The CIT Group/Capital Finance, Inc. | added 10/98; 7/2000 | | NRHS |
| 25 | SCSX | *SILVER CREEK & STEPHENSON RAILROAD | | | PWRC |
| 26 | SCSX | *GEORGIA POWER (SOUTHERN COMPANY SERVICES) | | | PWRC |
| 27 | SCSX | +THE CIT GROUP/CAPITAL FINANCE, INC. | | | PWRC |
| 28 | SCSX | Southern Company Services (CIT Group) | | | RSRV |
| 29 | SCSX | CIT GROUP/CAPITAL FINANCE INC, THE | | | SCAC4 |
| 30 | SCSY | SICOM SYSTEMS LTD | | | SCAC4 |
| 31 | SCSZ | TRANSPORT INTERNATIONAL POOL INC | | | SCAC4 |
