| Communist Central Committee Party | Academic & Science |
| Caltech Core Collapse Project | Academic & Science |
| Contact Consulting Communication and Projects | Business |
| Carbonyl Cyanide 3-chlorophenylhydrazone | Chemistry |
| Carbonyl Cyanide M-chlorophenyl Hydrazone | Chemistry |
| Canadian Centre for Child Protection | Community |
| Competitive Cycling Club of Portland | Community |
| Community Cycling Club of Portland | Community |
| Centralized Conference Control Protocol | Community |
| Classic Car Club of Pacific | Community |
| Cash Cash Cash People | Community |
| Cat Colony Care Programme | Community |
| Compilers Creating Custom Processors | Computer Hardware |
| Common Colaborative Coding Protocol | Computing |
| Certified Cloud Computing Professional | Computing |
| Cybercash Credit Card Protocol | Computing |
| Canadian College of Clinical Pharmacy | Educational Institute |
| Center for Community College Partnerships | Educational Institute |
| College & Career Conservative Patriots | Educational Institute |
| Certified Crisis Communications Planner | General |
| Cosmic Communist Constructions Photographed | General |
| Camera Corner Connecting Point | General |
| Credit Card Cork Pocket | General |
| Centrifugally Cast Concrete Pipe | General |
| Credit and Collection Compliance Professional | General |
| Critical Curatorial and Conceptual Practices | General |
| California Construction Contracting Program | General |
| Creative Content Creation and Production | General |
| Classic Car Cruise Parade | General |
| Classic Cars and Cycles Provence | General |
| Clube Citroen Classico de Portugal | General |
| Custom Concept Crazy Cars Pin-Ups | General |
| Creepy Commy Called Pavel | General |
| Communist Countries Can't Produce | General |
| Central Committee of the Communist Party | Governmental |
| Cologne Center for Comparative Politics | Governmental |
| Canadian Cultural Conservation Program | Governmental |
| California Community Colocation Project | Governmental |
| Soyuz Sovyetskikh Sotsyialistichyeskikh Respublik (Russian spelling of USSR) | International |
| Союз Советских Социалистических Республик | International |
| Columbia Combined Cancer Panel | Medical |
| Conference Control Channel Protocol | Networking |
| Cross Connection Control Program | Networking |
| Combined Community Codec Pack | Softwares |
| Caribbean Coaching Certification Program | Sports |
| (long) Crude, Copper, Cotton and Platinum | Stock Exchange |
