| Cell Stress Society International | Academic & Science |
| Campus Student Sustainability Initiatives | Academic & Science |
| Cyber Solutions Services Inc | Business |
| Consolidated Storage Solutions Inc | Business |
| Creative Surveillance Solutions Inc | Business |
| Culinary Sales Support Inc | Business |
| Corporate Special Services Inc | Business |
| Creation Science of Saskatchewan Inc. | Community |
| Colorado School Support Initiative | Community |
| Charter School Support Initiative | Community |
| Comprehensive School Safety Initiative | Community |
| Caribbean Safe Schools Initiative | Community |
| Computer Support Services Inc | Computing |
| Computational Social Science Initiative | Computing |
| Computer Services and Solutions Inc | Computing |
| Computational Social Science Institute | Computing |
| Center for Silicon System Implementation | General |
| Center for Space Standards Innovation | General |
| Center for Strategic Scientific Initiatives | General |
| Critical Skills Shortage Initiative | General |
| Center for Strategic | General |
| Child Support Savings Initiative | General |
| Cross sector social interactions | General |
| Correctional Services of Solomon Islands | General |
| Computer Science Summer Institute | Governmental |
| Carleton Summer Science Institute | Governmental |
| CSS Selector Scene Investigation | Governmental |
| Computer Solutions and Software International | International |
| Collegiate Shooting Sports Initiative | Sports |
| Chattanooga Shooting Supplies Inc | Sports |
