| North American Collaborating Center | Academic & Science |
| National Assessment on Climate Change | Academic & Science |
| North American College and Community | Academic & Science |
| National Accounts Classification Committee | Accounts and Finance |
| North American Calibration Cooperation | Business |
| North American Capacitor Company | Business |
| North American Contractor Certification | Business |
| North American Choral Company | Business |
| National Association For Colitis And Crohns | Community |
| Niagara Arts And Cultural Center | Community |
| National Association of Catholic Chaplains | Community |
| National Alzheimers Coordinating Center | Community |
| Non-profit Academic Centers Council | Community |
| Native American Community Clinic | Community |
| Northern Athletics Collegiate Conference | Community |
| National Association of Counsel For Children | Community |
| National Association of Collegiate Concessionaires | Community |
| Northborough Area Community Chorus | Community |
| New Albany Country Club | Community |
| North American Christian Convention | Community |
| Native American Cultural Center | Community |
| National Aviation Community Center | Community |
| National Association of Communication Centers | Community |
| National Autocycle and Cyclemotor Club | Community |
| National Anti Cybercrime Committee | Computing |
| National Advisory Council on Cybersecurity | Computing |
| National Association of Career Colleges | Educational Institute |
| Northeast Alabama Community College | Educational Institute |
| Northern Arizona Corvair Club | General |
| North American Car Club | General |
| National Auto Cycle Club | General |
| Northern Agricultural Catchments Council | General |
| National Angus Carcass Challenge | General |
| North American Collegiate Championship | General |
| Network Assisted Cell Change | General |
| Norfolk Animal Care Center | General |
| Nasi Ayam Cikin Cop | General |
| New Age Communications Construction | General |
| North American Car Co | General |
| Norwegian American Chamber of Commerce | Governmental |
| National AIDS Control Council | Governmental |
| New American Chamber of Commerce | Governmental |
| National Automobile Chamber of Commerce | Governmental |
| Nigerian American Chamber of Commerce | Governmental |
| National Anti-Corruption Commission | Governmental |
| Naval Acquisition Career Center | Governmental |
| North American Competitiveness Council | Governmental |
| NEW ALIPUR (CALCUTTA | Indian Railway Station |
| North Atlantic Cooperation Council | Military and Defence |
| New Alipur | Transport & Travel |
