| 1 | NPG | Supernova Airlines LLC | Callsign: Nova, Owned by Nova Poshta. | UA | AVCODES |
| 2 | NPG | NPG Bau Neuschitzer GmbH & Co KG | | AT | VKM |
| 3 | NPGC | NORTHWEST PROPANE GAS CO | | | SCAC4 |
| 4 | NPGI | NELSON PROPANE GAS INC | | | SCAC4 |
| 5 | NPGS | NONNA PIAS GOURMET SAUCES LTD | | | SCAC4 |
| 6 | NPGX | NEWPAGE CORP. | | | PWRC |
| 7 | NPGX | NEWPAGE CORPORATION | | | SCAC4 |
