| Chronic Poverty Research Centre | Academic & Science |
| Columbia Population Research Center | Academic & Science |
| California Policy Research Center | Academic & Science |
| Clinical and Pharmacologic Research Center | Academic & Science |
| Competition Policy Research Center | Academic & Science |
| Child Policy Research Center | Academic & Science |
| Certified Professional Recovery Coaches | Business |
| Certified Peer Recovery Coach | Business |
| Certified Public Relations Counselors | Business |
| Career and Professional Readiness Center | Business |
| Certified Professional Retirement Coach | Business |
| Covenant Protestant Reformed Church | Community |
| Chineham Park Running Club | Community |
| Cultural Properties Review Committee | Community |
| Civilian Police Review Committee | Community |
| Comprehensive Plan Review Committee | Community |
| Cytotechnology Programs Review Committee | Community |
| Central Polish Relief Committee | Community |
| Central Price Regulation Committee | Community |
| Community Parent Resource Center | Community |
| Chineham Park Running C | Community |
| Consumer Partner Resource Center | Computing |
| Chronic Pain Research Consortium | General |
| Cheverly Parents Resource Center | General |
| Conflict Prevention and Resolution Center | General |
| Cheverly Parent Resource Center | General |
| Consumer Payments Research Center | General |
| Chronic Pain Recovery Center | General |
| Chris Petersen Recruiting Classes | General |
| Carolinas Plastics Recycling Council | Governmental |
| Crime Prevention Research Center | Governmental |
| Coalition Personnel Recovery Center | Governmental |
| Community and Police Relations Committee | Governmental |
| Community Police Review Commission | Governmental |
| Chicon Pregnancy Resource Center | Medical |
| Community Psychiatric Rehabilitation Center | Medical |
| Community Psychiatric Rehab Center | Medical |
| Cancer Protocol Review Commitee | Medical |
| Cancer Prevention Research Center | Medical |
| Cancer Protocol Review Committee's | Medical |
| Cancer Protocol Review Committee | Medical |
| Cancer Pain Research Consortium | Medical |
| Chesapeake and Potomac Regional Chapter | Regional |
