| Community Radio Education Society | Academic & Science |
| Centre For Renewable Energy Sources | Academic & Science |
| Center for Reproduction of Endangered Species | Academic & Science |
| Centre for Resource and Environmental Studies | Academic & Science |
| Center for Robotics and Embedded Systems | Academic & Science |
| Center for Real Estate Studies | Academic & Science |
| Conservation and Research for Endangered Species | Academic & Science |
| Commercial Real Estate Sales | Business |
| Corporate Real Estate Solutions | Business |
| Competitive Retail Electric Service | Business |
| Customized Real Estate Services | Business |
| Community Real Estate Services | Business |
| Chicago Real Estate School | Business |
| Credit Repair Education Services | Community |
| Community Resources for Exploring | Community |
| Conferences Reservations and Event Services | Community |
| Center for Religious Experience and Study | Community |
| Camden Rockport Elementary School | Community |
| Cotee River Elementary School | Community |
| Colvin Run Elementary School | Community |
| Crystal River Elementary School | Community |
| Compiler Resources | Computing |
| Corrosion Resistant Engineered Solutions | Electronics |
| Cheshire Reptile Enthusiasts Society | General |
| Cisco Registered Envelope Service | General |
| Crescent | General |
| Certified Refrigeration Energy Specialists | Governmental |
| Center for Reliable Energy Systems | Governmental |
| Colorado Renewable Energy Society | Governmental |
| Citizens for Responsible Energy Solutions | Governmental |
| Center for Renewable Energy Sources | Governmental |
| Competitive Retail Electric Supplier | Governmental |
| Commercial Real Estate Salesman | Jobs |
| Cost Releasing Efficiency Savings | Medical |
| Columbus Radio Enthusiasts Society | Radio Science |
| Coastal Regional Evacuation and Sheltering | Regional |
| Corrosion Resistant Steel | Space Science |