| 1 | NDI | KS Nordic Air | | DK | AVCODES |
| 2 | NDIA | NIDIA SHIPPING CORPORATION | | | SCAC3 |
| 3 | NDIC | NOMADIC INTERNATIONAL A/S | | | SCAC3 |
| 4 | NDIC | NORDIC LOGISTICS LLC | | | SCAC4 |
| 5 | NDIG | NAVIGATOR DIRECT INC | | | SCAC4 |
| 6 | NDIN | NATIONAL DISTRIBUTORS INC | | | SCAC3 |
| 7 | NDIN | NATIONAL DISTRIBUTORS INC | | | SCAC4 |
| 8 | NDIR | NEW DIRECTION SHIPPING CO/., LTD. | | | SCAC3 |
| 9 | NDIS | NATIONWIDE DISTRIBUTORS INC | | | SCAC4 |
| 10 | NDIT | NATIONS DIRECT | | | SCAC4 |
| 11 | NDIX | Merchants Despatch Transportation Corp. | added 7/1956; 10/1957; eliminated 7/1960; 4/1961 (not listed) | | NAKINA |
| 12 | NDIX | Merchants Despatch Transportation Corp. | added 7/56; 10/57; eliminated 7/60; 4/61 | | NRHS |
| 13 | NDIX | MERCHANTS DESPATCH TRANSPORTATION CORP. | | | PWRC |
