sort by Rank | Alpha
| Possible Meanings | Rank |
| Charter College of Education | **** |
| Clinical Centers of Excellence | **** |
| Cardiac Centers of Excellence | **** |
| Calaveras County Office of Education | **** |
| Colusa County Office of Education | **** |
| Community Center of Excellence | *** |
| Community Centers of Excellence | *** |
| Caribbean Centre of Excellence | *** |
| Communications Center of Excellence | *** |
| Construction Centre of Excellence | *** |
| Convergence Center of Excellence | *** |
| Consulting Centers of Excellence | *** |
| Community Conversation on Education | *** |
| Compliance Center of Excellence | *** |
| Canadian Council of Osteopathic Examiners | *** |
| Council of Osteopathic Examiners | *** |
| Combustion Center of Excellence | *** |
| CIMIC Centre of Excellence | *** |
| Center for Continuing Outreach Education | *** |
| Commercial Center of Excellence | *** |
| Cisco Center of Excellence | ** |
| Coordinating Centers of Excellence | ** |
| Canadian College of Osteopathic | ** |
| Compressor Center of Excellence | ** |
| Center for Continuing and Outreach Education | ** |
| Canyon Country Outdoor Education | ** |
| Construction Centres of Excellence | ** |
| Cerner Certified Objects Engineers | * |
| Chiefs Committee on Education | * |
| Collaboration Center of Excellence | * |
| Council on Occupational Education | * |
| Central Check Out Equipment | * |
| Continuing and Continuing Education | * |
| Credit Call Operation Execution | * |
| Catalogue Collectif des Ouvrages Etrangers | * |
| Civic Center of Excellence (The Netherlands) | * |
| Coolest Checks On Earth | * |