| Net Condition/Event Systems | Academic & Science |
| A National Company Incorporation Service | Business |
| National Crop Insurance Services | Business |
| Nevada Career Information System | Business |
| National Coalition of Independent Scholars | Community |
| New Culture in School | Community |
| Niner Clinical Immersion School | Community |
| Namsa Customer Information System | General |
| No Cancellation in Sight | General |
| NHS Contract Information System | General |
| NATO Common Interoperability Standards | General |
| Nothing's Carved In Stone | General |
| Nikki Cross Investigative Show | General |
| Naval Criminal Investigative Service | Governmental |
| National Criminal Investigation Squad | Governmental |
| National Coroners Information System | Governmental |
| Naval Criminal Investigation Service | Governmental |
| National Criminal Intelligence Section | Governmental |
| Navy Criminal Investigative Service | Governmental |
| Naval Criminal Investigative Services | Governmental |
| Ncisnational Criminal Intelligence Service | Governmental |
| National Contaminants Information System | Governmental |
| Norwegian Council For Information Science | Governmental |
| National Criminal Intelligence Service | Governmental |
| New Cadre Integrated Scientists | Governmental |
| Navy Criminal Investigation System | Governmental |
| Naval Crime Intelligence Survey | Governmental |
| National Criminal Investigative Services | Governmental |
| Naval Crime In Sotland | Governmental |
| Navel Criminal Investigative Service | Governmental |
| Navy Cost Information System | Governmental |
| National Crime Investigation Squad | Governmental |
| Naval Crime Investigative Services | Governmental |
