| Abbreviation | Definition |
|---|---|
| NCX | NorthCounTree ChristmasTrees |
| NCY | North County Yamaha |
| ND5 | Ninety Degrees Five |
| NDBC | Nebraska Downtown Business Center |
| NDC | Neighborhood Development Company |
| NDC | Neighborhood Development Corporation |
| NDC | Nitinol Devices & Components |
| NDCA | North American Deregulation Consultant Agency |
| NDCL | Nepal Doorsanchar Company, Limited |
| NDDC | Niger Delta Development Corporation |
| NDEI | Netter Digital Entertainment Inc |
| NDEI | Non Destructive Evaluation Inc |
| NDFC | National Development Finance Corporation |
| NDG | National Diamond Gold |
| NDG | New Directions Group |
| NDGI | Navigator Development Group Inc |
| NDI | Natural Decorations Incorporated |
| NDI | Neptune Divers International |
| NDI | New Dimensions Inc |
| NDJ | No Dinky Jewelry |