| College of Engineering and Mathematical Sciences | Academic & Science |
| Chemical Environmental Management System | Academic & Science |
| Center for Engineering Mathematics and Science | Academic & Science |
| Chemical Engineering and Materials Science | Academic & Science |
| Center for Excellence in Math and Science | Academic & Science |
| Community Of European Management Schools | Academic & Science |
| Coalition of Engineering Minority Societies | Academic & Science |
| Course Equivalency Management System | Business |
| Compound Element Mixture Solution | Chemistry |
| Community Energy Management System | Community |
| Camp Ernst Middle School | Community |
| Customs Electronic Manifest System | Database Management |
| Continuous Emissions Monitoring Systems | General |
| Center for Early Music Studies | General |
| Continuous Emisions Monitoring System | General |
| Continuous Emissions Monitoring System | General |
| Church of England Men's Society | General |
| Center for Eastern Mediterranean Studies | General |
| Continuous Emission Monitoring Systems | General |
| Capillary Electrophoresis–Mass Spectrometry | General |
| Conversion Electron Mössbauer Spectroscopy | General |
| Catalyst Efficiency Management System | General |
| Carbureted Engine Management System | General |
| Continuous Emission Monitoring System | General |
| Colorado Environmental Management Society | Governmental |
| Crew Environmental Management System | Governmental |
| Cleveland Emergency Medical Services | Medical |
| Central European Management Science | Regional |
