| Acronym | Definition |
|---|
| NISC➣NGO (Non-Governmental Organisation) Information and Support Centre |
| NISC➣National Information Solutions Cooperative |
| NISC➣National Invasive Species Council (US Department of the Interior) |
| NISC➣National Inquiry Services Centre (South Africa) |
| NISC➣Network Information and Support Center |
| NISC➣National Information Services Corporation |
| NISC➣National Institute of Senior Centers |
| NISC➣National Interest Security Company (Fairfax, VA) |
| NISC➣Nationwide Investment Services Corporation (Nationwide Financial) |
| NISC➣National Indoor Sports Centre (Jamaica) |
| NISC➣Netherlands International Shooting Competition (military competition) |
| NISC➣Northern Ireland Supporters Club (UK) |
| NISC➣Network Information Systems Center (Internet) |
| NISC➣National Institute of Statistics and Census (various locations) |
| NISC➣Naval Intelligence Support Center |
| NISC➣No-Instruction-Set-Computer (design synthesis tools) |
| NISC➣NAS Implementation Support Contract |
| NISC➣NSA ISSO Service Center |
| NISC➣National Integrated Service Center (Sprint) |
| NISC➣Names in South Carolina (resource) |
| NISC➣Network Infrastructure Support System |
| NISC➣Nexus Information Sources Company Pte Ltd. (Singapore) |
| NISC➣National / International Switching Center |