| Abbreviation | Definition |
|---|---|
| NMC | Newmont Mining Corporation of Canada Limited |
| NNE | NEMI Northern Energy & Mining Inc. |
| NNE | NEMI Northern Energy & Mining Incorporated (de-listed) |
| NNE | NEMI Northern Energy & Mining Incorporated (de-listed) |
| NNN | NiMin Energy Corp. |
| NNN | NiMin Energy Corporation |
| NOA | North American Energy Partners Inc. |
| NOA | North American Energy Partners Incorporated |
| NOM | Economic Investment Trust, Incorporated |
| NOM | Norsemont Mining Inc. |
| NPC | Allon Therapeutics Inc. |
| NPC | NAPEC, Incorporated (formerly Allon Therapeutics Incorporated) |
| NPC | NAPEC, Incorporated (formerly Allon Therapeutics Incorporated) |
| NPF | Newport Partners Income Fund |
| NPI | Northland Power Income Fund |
| NPP | Northland Power Preferred Equity Inc. |
| NPP | Northland Power Preferred Equity Incorporated (de-listed) |
| NPP | Northland Power Preferred Equity Incorporated (de-listed) |
| NPR | Northern Property Real Estate Investment Trust |
| NRG | Alter NRG Corporation |