| 1 | NCIC | NORMARC INC | | | SCAC3 |
| 2 | NCIC | NICKEL, ALFRED H | | | SCAC4 |
| 3 | NCID | NATIONAL CARRIER INC | | | SCAC4 |
| 4 | NCIG | NCI GROUP INC | | | SCAC4 |
| 5 | NCII | NIAGARA COMPOSITES INDUSTRIES INC | | | SCAC4 |
| 6 | NCIL | NATIONAL COURIER | | | SCAC4 |
| 7 | NCIN | NACION TRANSPORTATION CORP | | | SCAC3 |
| 8 | NCIO | NORVIK CARGO INTERNATIONAL | | | SCAC4 |
| 9 | NCIP | NCI TRANSPORT | | | SCAC4 |
| 10 | NCIQ | NEW CENTURY INTERMODAL INC | | | SCAC4 |
| 11 | NCIR | New Castle Industrial R.R. | added 10/2003; eliminated 1/2004; 7/2005 | | NAKINA |
| 12 | NCIR | NEW CASTLE INDUSTRIAL RAILROAD | | | PWRC |
| 13 | NCIR | New Castle Industrial Railroad | | | RSRV |
| 14 | NCIR | NEW CASTLE INDUSTRIAL RAILROAD | | | SCAC4 |
| 15 | NCIR | New Castle Industrial R.R. | | USA | TRAFFIC |
| 16 | NCIU | NORTH AMERICAN CONTAINER SYSTEM (TRAC LEASE) | | | PWRC |
| 17 | NCIU | North American Container System | | | RSRV |
| 18 | NCIV | NEW | | | SCAC4 |
| 19 | NCIW | NOW COURIER INC | | | SCAC4 |
| 20 | NCIX | Nova Chemicals Inc. | added 4/1997; 7/2000-7/2005 | | NAKINA |
| 21 | NCIX | Novacor Chemicals Inc. | added 4/1996; eliminated 4/1997 | | NAKINA |
| 22 | NCIX | Nebraska Co-Operative Creameries, Inc. | 7/1935 | | NAKINA |
| 23 | NCIX | Novacor Chemicals Inc. | added 4/96; eliminated 4/97 | | NRHS |
| 24 | NCIX | Nova Chemicals Inc. | added 4/97; 7/2000 | | NRHS |
| 25 | NCIX | NOVA CHEMICALS INCORPORATED [NOVACOR CHEMICALS, INC.] | | | PWRC |
| 26 | NCIX | Nova Chemicals | | | RSRV |
| 27 | NCIX | NOVA CHEMICALS INC | | | SCAC4 |
| 28 | NCIZ | NUCOR INDUSTRY | | | PWRC |
