| Abbreviation | Definition |
|---|---|
| NRUCFC | National Rural Utilities Cooperative Finance Corporation |
| NRWS | Northern Recycling Waste Services |
| NRWS | Northern Recycling & Waste Services |
| NSA | National Safety Associates |
| NSA | Nichiren Shoshu of America |
| NSA | North Suncoast Associates |
| NSA | Nuyan Sangyo America |
| NSAA | Nova Scotia Association of Architects |
| NSBL | Nepal SBI Bank Ltd |
| NSC | National Seeds Corporation |
| NSC | National Service Center |
| NSC | National Shipping Corporation |
| NSC | National Silver Company |
| NSC | Norfolk Souther Corporation |
| NSC | Norfolk Southern Corp |
| NSC | North State Communications |
| NSC | Nutritional Scientific Corporation |
| NSCC | National Specialist Contractors Council |
| NSCC | Nnational Securities Clearing Corporation |
| NSCCL | National Securities Clearing Corporation Limited |