| Centre for Advanced Construction Studies | Academic & Science |
| Calcenter for Atmospheric Chemistry Studies | Academic & Science |
| Centre for Access and Communication Studies | Academic & Science |
| Center for Advanced Computer Studies | Academic & Science |
| Chinese-American Chemical Society | Academic & Science |
| Custom Applications and Consulting Services | Business |
| Carrier Access Corporation | Business |
| Canadian Association For Curriculum Studies | Business |
| Chancellor's Advisory Committee on Sustainability | Business |
| Consolidated Audit And Compliance System | Business |
| Center for Advising and Career Services | Business |
| Computer Audit, Control, and Security Conference | Community |
| Chippewa Area Catholic Schools | Community |
| Creative Arts Charter School | Community |
| Capital Area Community Services | Community |
| Computer Assisted Coding System | Computing |
| Customer Administration Communication System | Computing |
| Canadian Association of Computer Science | Computing |
| Computer Audit Control and Security | Computing |
| Computer Assisted Collection System | Computing |
| Canadian Active Control System | Earth Science |
| Certificate of Advanced Counseling Studies | Educational Degree |
| California Association of College Stores | Educational Institute |
| Citizens Against Common Sense | General |
| Center for Alaskan Coastal Studies | General |
| Coronary Artery Calcium Scoring | General |
| Central Air Conditioning System | General |
| Comprehensive Automobile Control System | General |
| Chinese American Council of Sacramento | Governmental |
| Coronary Artery Calcium Score | Medical |
| Collaboratory for Advanced Computing and Simulations | Medical |
| California Academy of Cosmetic Surgery | Medical |
| Celiac Axis Compression Syndrome | Medical |
