| National Antarctic Research Centre | Academic & Science |
| Neurobiology of Addiction Research Center | Academic & Science |
| National Asphalt Research Consortium | Academic & Science |
| Nittany Amateur Radio Club | Academic & Science |
| Numerical Analysis Research Club | Academic & Science |
| Northern Ag Research Center | Academic & Science |
| Norwegian Arabidopsis Research Centre | Academic & Science |
| National Avian Research Center | Academic & Science |
| Norwegian Arabidopsis Research Center | Academic & Science |
| Nashua Area Radio Club | Academic & Science |
| National Abaca Research Center | Academic & Science |
| Northland Antique Radio Club | Academic & Science |
| Naval Architecture | Academic & Science |
| North American Rayon Corporation | Business |
| National Association Of Regional Councils | Business |
| National Automobile Recovery Company | Business |
| National Advertising Review Council | Business |
| National Association for Retarded Children | Community |
| National Association for Retarded Citizens | Community |
| No Animals Report Crimes | General |
| North American Retro Collective | General |
| Neuropsychoimaging of Addiction and Related Conditions | General |
| Noon Average Rate Contract | General |
| National Amateur Retriever Championship | General |
| Neural Apoptosis Regulated Convertase | General |
| Nothing As Really Changed | General |
| North American Rally to the Caribbean | General |
| North Adriatic Rating Circuit | General |
| Northern Auto Racing Club | General |
| Northern Automotive Restoration Club | General |
| Narcotics And Riot Control | General |
| Northern Agricultural Research Center | General |
| Nepal Agricultural Research Council | General |
| National Agricultural Research Centre | General |
| Not Actually Real Cops | General |
| Not A Real Clan | General |
| Narcotics Police Detective | Governmental |
| National Alliance Rainbow Coalition | Governmental |
| Neptune's Army of Rubbish Cleaners | Governmental |
| Non-automatic Relay Center | Military and Defence |
| Non-automated Relay Center | Networking |
| National African Religion Congress | Regional |
| North American Rockwell Corporation | Space Science |
| North Atlanta Riding Club | Sports |
