| NISA | National Ice Skating Assoc 
| Others |
| NISA | National Ice Skating Association
| Others |
| NISA | National Independent Schools Alliance
| Others |
| NISA | National Independent Soccer Association
| Others |
| NISA | National Independent Staffing Association
| Others |
| NISA | National Industrial Sand Association
| Others |
| NISA | National Industrial Security Academy
| Others |
| NISA | National Information Security Authority
| Others |
| NISA | National Initiative for Sustainable Agriculture
| Others |
| NISA | National Innovation and Science Agenda
| Others |
| NISA | National Intelligence and Security Agency
| Others |
| NISA | National Intelligence and Security Authority
| Others |
| NISA | National Intelligence Security Agency
| Others |
| NISA | National Invasive Species Act
| Others |
| NISA | NATO International School of Azerbaijan
| Others |
| NISA | Net Income Stabilization Account
| Others |
| NISA | New Individual Savings Account
| Others |
| NISA | Nippon Ichi Software of America
| Others |
| NISA | Nippon Individual Savings Account
| Others |
| NISA | Nissan International Sa
| Others |
| NISA | Nordic Initiative for Sustainable Aviation
| Others |
| NISA | North Imphal Sporting Association
| Others |
| NISA | Northern Independents Supermarket Association
| Others |
| NISA | Northern Initiative For Social Action
| Others |
| NISA | Nuclear and
| Others |
| NISA | Nuclear and Industrial Safety Agency
| Others |