| Computer Communications Workshop | Academic & Science |
| Component Cooling Water | Academic & Science |
| Consolidated Chemical Works | Academic & Science |
| Cowell | Airport Code |
| Complete Custom Wheels | Business |
| Commercial Cable & Wire | Business |
| Canadian Curtis Wright | Business |
| IEEE Computer Communications Workshop | Community |
| Children's Club of the World Ltd. (UK) | Community |
| Custom Control for Windows | Computing |
| Com Callable Wrapper | Computing |
| Channel Command Word | Computing |
| Continuous Composite Write Once | Computing |
| Certified Corporate Webmaster | Computing |
| Center for Cyber Warfare | Computing |
| Cisco Commerce Workspace | Computing |
| Customer Contact Week | Contact |
| Counter Clockwise | Electronics |
| Christ Centered World | General |
| Certified Compost Wacko | General |
| Clockwise And Counterclock Wise | General |
| Children Change The World | General |
| Custom Car Works | General |
| Classic Car Week | General |
| Cooperative Collision Warning | General |
| Capri Club Westerholt | General |
| Custom Cars World | General |
| Conventional Cab Tandem Rear Axles | General |
| Century Custom Wagon | General |
| Colorado Crew Cab | General |
| Cutlass Cruiser Wagon | General |
| Complete Custom Wheel | General |
| Content Communications World | General |
| Common Code Workflow | General |
| Content and Communication World | General |
| Concealed carry | General |
| Colton Christopher Wilson | General |
| Customized Curve of Wattage | General |
| Civil Construction Wing | General |
| Critical Communications World | General |
| Caledonia Country Wear | General |
| Connelly Campion Wright | General |
| Cancel Call Waiting | General |
| Ceiling Climb Warping | General |
| Council Of Catholic Women | Governmental |
| Countryside Council for Wales | Governmental |
| Carrying Concealed Weapons | Governmental |
| Carry Concealed Weapon | Governmental |
| Carrying a Concealed Weapon | Governmental |
| Concealed Carry Weapon | Governmental |
| Coal Combustion Waste | Governmental |
| Center for the Childcare Workforce | Governmental |
| Concealed Carry Weapons | Governmental |
| California Concealed Weapon | Governmental |
| Child Care Workforce | Governmental |
| Certain Conventional Weapons | Governmental |
| Conceal Carry Weapon | Governmental |
| Carrying Concealed Weapon | Governmental |
| Convention on Conventional Weapons | Governmental |
| Cute Crush Wednesday | Internet |
| United Nations Convention On Conventional Weapons of 1980 | Military and Defence |
| Continuous Carrier Wave | Military and Defence |
| Canadian Championship Wrestling | Regional |
| Curriculum Council for Wales | Regional |
| Capital City Wrestling | Sports |
| Clown Championship Wrestling | Sports |
| Chaos Championship Wrestling | Sports |
| Coliseum Championship Wrestling | Sports |
