| Abbreviation | Definition |
|---|---|
| NWRA | NorthWest Research Associates |
| NWRA | Northwest Research Associates, Inc. |
| NWRI | Nebraska Wildlife Rehab Inc |
| NWS | Named Windstorm |
| NWSC | National Water and Sewerage Corporation |
| NWSI | New World Services, Inc. |
| NWSI | Northeast Water Solutions Inc |
| NWT | Northwest Drug Testing, Inc. |
| NWT | Northwest Technology Center |
| NWTM | NorthWwestern Travel Management |
| NWTP | New World Technology Partners |
| NWV | NetworkVirginia |
| NWW | National Web Window |
| NWW | Network World, Inc. |
| NWW | North West Water PLC |
| NWWP | New World Wine Producers |
| NWX | Neopets World X |
| NWX | NorthWest Express |
| NWX | NorthWest Xerographics |
| NXC | National X-Ray Corporation |