| National Cartoonists Society | Academic & Science |
| National Cycling Society | Academic & Science |
| Net Collectors Society | Academic & Science |
| Nordic Catalysis Society | Academic & Science |
| North Carolina State | Academic & Science |
| North Central Section | Academic & Science |
| North Campus School | Academic & Science |
| Net Common Stock | Accounts and Finance |
| No Cpoyright Sounds | Business |
| National Consulting Service | Business |
| NCI Building Systems, Inc. | Business |
| Neighbors Creations Studios | Business |
| N-chlorosuccinimide | Chemistry |
| Nigerian Customs Service | Community |
| North Country School | Community |
| Nowra Christian School | Community |
| New Covenant Scriptures | Community |
| New Community School | Community |
| National Cathedral School | Community |
| Numismatic Conservation Services | Community |
| National Cryptologic School | Community |
| National Cancer Summit | Community |
| Network-based Call Signaling | Computer and Networking |
| Nurse Call System | Computer and Networking |
| Novell Connection Service | Computing |
| Native Character Set | Computing |
| Newroom Computer System | Computing |
| Network Call Signaling | Computing |
| Nippon Computer Systems | Computing |
| Network Computing Service | Computing |
| Node Control Software | Computing |
| Norton Clean Sweep | Computing |
| Netscape Communications Server | Computing |
| Network Control System | Computing |
| Network Center Server | Computing |
| Network Configuration Services | Computing |
| Network Communications System | Computing |
| Network Computing System | Computing |
| Network and Cache Simulator | Computing |
| Network Computers | Computing |
| Network Characterization Service | Computing |
| Native Computer Systems | Computing |
| Netscape Commerce Server | Computing |
| Network Communication Server | Computing |
| Network Clock Synchronization | Computing |
| Node Control System | Computing |
| Non Critical Section | Computing |
| Netware Connect Services | Computing |
| Native Code Set | Computing |
| National Computer Systems | Computing |
| Novell Cluster Services | Computing |
| Nasi Connection Service | Computing |
| Norton Core Security | Computing |
| Nigeria Computer Society | Computing |
| Nibble Computer Society | Computing |
| Neural Compute Stick | Computing |
| Nippon Computer System | Computing |
| Norwegian Continental Shelf | Earth Science |
| Network Communication Standard | Electronics |
| Netscape Conference Call File (netscape) | File Type |
| Noise Cancellation System | General |
| New Compact Sedan | General |
| Nascar Cup Series | General |
| New Coding System | General |
| Nextel Cup Series | General |
| Nascar Corona Series | General |
| New Car Sales | General |
| Noise Control System | General |
| Nissan Connect Services | General |
| Nissan Club Serbia | General |
| New Concept Sedan | General |
| North Central Speedway | General |
| Net Car Show | General |
| Non Concentual Sex | General |
| Non Client Sample | General |
| Natural Color System | General |
| Nielsen Catalina Solutions | General |
| National Citizenship Services | General |
| National CAD Standard | General |
| North Central Sales | General |
| National Citizens Service | General |
| National Compensation Survey | General |
| NET Concentrator System | General |
| National Citizen Services | General |
| National Championship Series | General |
| No Copyright Sounds | General |
| Natural Capitalism Solutions | General |
| North Central Service | General |
| National Comorbidity Survey | General |
| National Citizen Service | General |
| National Children's Study | General |
| National Center for Simulation | General |
| National Citizenship Service | General |
| North Coast Section | General |
| National Console Support | General |
| Network Convergence System | General |
| Not to Current Standards | General |
| National Camp Series | General |
| National Capital Section | General |
| Network Cabling Services | General |
| No Coast Specified | General |
| Nanopierce Connection System | General |
| NICMOS (Near Infrared Camera & Multi-Object Spectrometer) Cooling System | Governmental |
| Not Clinically Significant | Governmental |
| National Crime Squad | Governmental |
| Node Center Switch | Governmental |
| Non Consensual Sex | Governmental |
| Nerve Conduction Study | Medical |
| Nederlandse Commissie voor Stralingsdosimetrie | Medical |
| Norwegian Counties Study | Medical |
| Neurocardiogenic syncope | Medical |
| Nerve Conduction Studies | Medical |
| Nephrology Clinical Solutions | Medical |
| Neurocritical Care Society | Medical |
| No Cost Share | Medical |
| National Clandestine Service | Military and Defence |
| Naval Control of Shipping | Military and Defence |
| Net Control System | Military and Defence |
| Node Center Switch (mse) | Military and Defence |
| National Communications System | Military and Defence |
| Number of Concurrent Sessions | Networking |
| Network Connection Sharing | Networking |
| Nanoclusters | Physics Related |
| Net Control Station | Radio Science |
| Nassau, Cook Islands | Regional |
| Near Infrared Camera & Multi-object Spectrometer (nicmos) Cooling System | Space Science |
| Nutation Control System | Space Science |
| North Columbus Sports | Sports |
| Not Connected Seconds | Telecommunication |