| 1 | SCY | Air Scandic | Callsign: Airscan, Ceased operations in September 2006. | GB | AVCODES |
| 2 | SCY | SEAVIEW COMPANY | | | PWRC |
| 3 | SCYA | ST CHARLES COUNTY COOPERATIVE COMPA | | | SCAC4 |
| 4 | SCYC | STERICYCLE INC | | | SCAC4 |
| 5 | SCYF | STACYS SERVICE COMPANY LLC | | | SCAC4 |
| 6 | SCYH | STAR TRANS CONTAINER LINE LTD | | | SCAC4 |
| 7 | SCYI | SOUCY INTERNATIONAL INC | | | SCAC4 |
| 8 | SCYK | SCOTTYS TRUCKING | | | SCAC4 |
| 9 | SCYL | SUN COUNTRY LOGISTICS LLC | | | SCAC4 |
| 10 | SCYM | SCOTTYS OIL CO INC | | | SCAC4 |
| 11 | SCYN | SO CAL METAL RECYCLING INC | | | SCAC4 |
| 12 | SCYR | SCULLY TRANSPORTATION | | | SCAC4 |
| 13 | SCYS | SOUTHWEST CARGO SYSTEMS LLC | | | SCAC4 |
| 14 | SCYU | SEA CONTAINERS AMERICA INC | | | SCAC4 |
| 15 | SCYX | Farmers Cooperative Association of York, Nebraska | added 4/1981; eliminated 7/1988 | | NAKINA |
| 16 | SCYX | U.S. Rail Services, Inc. | added 7/1988; 1/1994; eliminated 4/1994 | | NAKINA |
| 17 | SCYX | USL Capital Rail Services | added 4/1994; eliminated 10/1996 | | NAKINA |
| 18 | SCYX | First Union Rail | added 10/1996; 7/2000-7/2005 | | NAKINA |
| 19 | SCYX | Farmers Cooperative Association of York, Nebraska | added 4/81; eliminated 7/88 | | NRHS |
| 20 | SCYX | U.S. Rail Services, Inc. | added 7/88; 1/94; eliminated 4/94 | | NRHS |
| 21 | SCYX | USL Capital Rail Services | added 4/94; eliminated 10/96 | | NRHS |
| 22 | SCYX | First Union Rail | added 10/96; 7/2000 | | NRHS |
| 23 | SCYX | *FARMERS COOPERATIVE ASSOCIATION OF YORK, NEBRASKA | | | PWRC |
| 24 | SCYX | +FIRST UNION RAIL [(RUSX) USL CAPITAL RAIL SERVICES] | | | PWRC |
| 25 | SCYX | Farmers Cooperative Association of York, Nebraska | | | RSRV |
| 26 | SCYZ | SEA CONTAINERS | | | PWRC |
| 27 | SCYZ | Sea Containers | | | RSRV |
| 28 | SCYZ | SEA CONTAINERS | | | SCAC4 |
