| Calcium Magnesium Aluminum Silicates | Academic & Science |
| Chesapeake Marine Aquaria Society | Academic & Science |
| Colorado Measure of Academic Success | Academic & Science |
| Center for Medico Actuarial Statistics | Academic & Science |
| Center for Mexican American Studies | Academic & Science |
| Collection Management Access Services | Academic & Science |
| Chicago Marine Aquarium Society | Academic & Science |
| Colorado Measures of Academic Success | Academic & Science |
| Creative Musical Arts and Sciences | Academic & Science |
| Cost & Management Accountants | Accounts and Finance |
| Certified Minnesota Assessor Specialist | Business |
| Certified Minnesota Assessors Specialist | Business |
| Charter Mark Assessment Services | Business |
| Cma Gl. Gbp | Business |
| Catalogue Management Analysis System | Business |
| Cost & Management Accountants | Business |
| Champlian Music Appreciation Society | Community |
| Clergy Mutual Assurance Society | Community |
| Community Modeling and Analysis System | Community |
| Chicagoland Marine Aquarium Society | Community |
| Cellular Messaging Alert System | Computing |
| Cics Sm Address Space | Computing |
| Cheyenne Mountain Air Station | General |
| Center for Multicultural Affairs Services | General |
| Center for Multiscale Applied Sensing | General |
| Colour Me A Season | General |
| California Multiple Award Schedules | General |
| Commercial Mobile Alert System | General |
| Command Manday Allocation System | General |
| Commercial Mobile Alert Service | General |
| Contemporary Music and Sound | General |
| Childhood Myositis Assessment Scale | General |
| Child Maltreatment and Advocacy Studies | General |
| Clothing Monetary Allowance System | Governmental |
| California Multiple Award Schedule | Governmental |
| Conservation and Management of Archaeological Sites | Governmental |
| Confédération Mondiale des Activités Subaquatiques | International |
| Certified Medical Administrative Specialist | Jobs |
| Center for Minimal Access Surgery | Medical |
| Coherent Multi-static Active Sonar | Military and Defence |