| 1 | NRI | Nebkota Ry., Inc. | added 10/1994; 7/2000 | | NAKINA |
| 2 | NRI | Nebkota Ry., Inc. | added 10/94; 7/2000 | | NRHS |
| 3 | NRI | NEBKOTA RAILWAY, INC. | | | PWRC |
| 4 | NRI | Nebkota Railway | | | RSRV |
| 5 | NRI | NEBKOTA RAILWAY INC | | | SCAC4 |
| 6 | NRI | Nebkota Railway Inc. | | USA | TRAFFIC |
| 7 | NRIC | National railway infrastructure company / Национална компания \"Железопътна инфраструктура\" | | BG | VKM |
| 8 | NRIL | NORTHERN INTERNATIONAL | | | SCAC3 |
| 9 | NRIL | Network Rail | | UK | VKM |
| 10 | NRIN | NANCO RELOCATIONS INC | | | SCAC3 |
| 11 | NRIN | NORAM INTERIORS LTD | | | SCAC4 |
| 12 | NRIQ | NSM RECYCLING INC | | | SCAC4 |
| 13 | NRIS | NORIS SHIPPING SERVICE | | | SCAC3 |
| 14 | NRIU | NATIONAL REFRIGERANTS INC. | | USA | BIC |
| 15 | NRIU | National Refrigerants | | | RSRV |
| 16 | NRIU | NATIONAL REFRIGERANTS, INC. | | | SCAC3 |
| 17 | NRIU | NATIONAL REFRIGERANTS INC | | | SCAC4 |
| 18 | NRIX | National Refrigerants, Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 19 | NRIX | National Refrigerants, Inc. | Jul-00 | | NRHS |
| 20 | NRIX | NATIONAL REFRIGERANTS INCORPORATED | | | PWRC |
| 21 | NRIX | National Refrigerants | | | RSRV |
| 22 | NRIX | NATIONAL REFRIGERANTS, INC. | | | SCAC4 |
