| Abbreviation | Definition |
|---|---|
| NST | Nintendo Software Technologies |
| NST | Northern Systems Technologies, Inc. |
| NSTC | North State Telephone Company |
| NSTI | Network Systems Technology Inc |
| NSTSB | North Star Technology Sdn. Bhd. |
| NSU | Neckarsulm Strickmaschinen Union |
| NSV | Nederlandse Schildpadden Vereniging |
| NSV | Next Silicon Valley |
| NSV | NorthSide Corvette Vette Gears |
| NSV | NorthSide Corvette & Vette Gears |
| NSW | Nippon SystemWare Company |
| NSW | Nippon Systemware Company, Ltd. |
| NSW | North Star Wholesale |
| NSX | National Strata Exchange |
| NT | Nautilus Technology |
| NT | Northern Telecom |
| NTA | National Technologies Associates, Inc. |
| NTA | National Technologies Associates, Incorporated |
| NTAI | National Technologies Associates, Inc. |
| NTAI | National Technologies Associates, Incorporated |