| Centre for Neuroscience and Cell Biology | Academic & Science |
| Colegio Nacional de la Capital | Academic & Science |
| Czech National Corpus | Academic & Science |
| Conseil National De La Comptabilit | Accounts and Finance |
| Contract Negotiation Committee | Accounts and Finance |
| Currently Not Collectible | Accounts and Finance |
| Coconut Island | Airport Code |
| City Nature Challenge | Associations & Organizations |
| Conseco, Inc. | Business |
| Compagnie Nouvelle de Conteneurs | Business |
| Communications and Network Consulting | Business |
| Communications Network Consulting | Business |
| China Network Communications | Business |
| Concur.tech | Business |
| Consolidated Capital Investments Ltd | Business |
| Cash And Carry | Business |
| China Netcom | Business |
| Computer Numeric Control | Chemistry |
| Centre Nationale de la Cinématographie | Community |
| Canadian National Collection | Community |
| Charting A New Course | Community |
| Commercial Newspaper Campaign | Community |
| Computer Nano-controller | Computer Hardware |
| Computerized Numerical Control | Computing |
| Concentrator | Computing |
| Computerized Numerical Controllers | Computing |
| Collaborative Networked Communication | Computing |
| Communications Network Control | Computing |
| Campus Networking Committee | Computing |
| Call if Non Carry | Computing |
| Click and Create | Computing |
| Computer Numerically Control | Computing |
| Computer Numerically Cnc | Computing |
| Computer Numerically Controlled | Computing |
| Computer Numerical Controlled | Computing |
| Canadian National Committee | Country Specific |
| College of New Caledonia | Educational Institute |
| Cnc General Program Data | File Type |
| Cool Not Complicated | General |
| Cap N Collar | General |
| Consensual Non Consent | General |
| Chattahoochee Nature Center | General |
| Car News China | General |
| Comision Nacional de Automoviles Clasicos de Competencia | General |
| Chevrolet Niva Club | General |
| Club Niva Chile | General |
| Car Newbies Community | General |
| Campeonato Nacional de Classicos | General |
| Century Custom | General |
| Chrysler Concorde | General |
| Car Nation Canada | General |
| Cash N Carry | General |
| Computer Numerically Controlled or Computer Numerical Control | General |
| Controlled Not Classified | Governmental |
| Custody And Clearing | Governmental |
| Centre National du Cinéma et de l'image animée | Governmental |
| Civil Nuclear Constabulary | Governmental |
| Ceylon National Congress | Governmental |
| Cadet Nurse Corps | Governmental |
| Conceju Nacionaliegu Cántabru | Governmental |
| CHINCHLI | Indian Railway Station |
| Computer Numerical Control | Information Technology |
| Confederación Nacional de la Construcción | International |
| Congreso Nacional de Canarias | International |
| Consell Nacional Catala | International |
| Confederación Nacional Campesina | International |
| Certified Nutritional Consultant | Jobs |
| Clinical Nurse Consultant | Medical |
| Crime and Narcotics Center | Military and Defence |
| Configurable Network Computing | Networking |
| Community Newspaper Company | News & Entertainment |
| Coconut Island, Queensland, Australia | Regional |
| Charlotte, North Carolina | Regional |
| Chippewa Nature Center | Regional |
| Central National Committee (Ghana) | Regional |
| Coconut Island Airport | Transport & Travel |
