| Compact for open-access publishing equity fund | Academic & Science |
| Coastal Ocean Probing Experiment | Academic & Science |
| College Opportunity to Prepare for Employment | Academic & Science |
| Cope, Inc. | Business |
| Consistent Organize Prepare And Enthusiastic | Business |
| Canadian Office & Professional Employees | Business |
| Cadena de Ondas Populares Española ( Popular Spanish Radio Network) | Community |
| Center for Occupational Personalized Education | Community |
| Challenging Outdoor Physical Encounter | Community |
| Challenging Outdoor Personal Experience | Community |
| Challenging Outdoor Personal Encounter | Community |
| Community Outreach, Prevention, and Education | Community |
| Creating Optimal Personal Experiences | Community |
| Challenging Outdoor Personal Encounters | Community |
| Christ Offers Peace Everlasting | Community |
| Choices, Opportunities, Power, and Energy | Community |
| The Council Of Pacific Education | Community |
| Community Oriented Policing Effort | Community |
| Committee Of Progressive Electors | Community |
| Community Owned Primary Education | Community |
| Customized Optional Program Of Education | Community |
| A Campaign On Political Education | Community |
| Center For Occupational And Personalized Education | Community |
| Committee On Political Education | Community |
| Center For Online Professional Education | Community |
| Committee On Public Enterprises | Community |
| Committee On Publication Ethics | Community |
| Create Once, Publish Everywhere | Computer Technology |
| Cope | Cryptocurrency |
| Center for Organic Photonics and Electronics | Electronics |
| Corporate Owned Personally Enabled | General |
| Coalition of Prison Evangelists | General |
| Compact for OA Publishing Equity | General |
| Center of Protective Environment | General |
| Cooperative Orthotic and Prosthetic Enterprise | General |
| Chautauqua Offices of Psychotherapy and Evaluation | General |
| Center for Overcoming Problem Eating | General |
| Construction Occupancy Protection and Exposures | General |
| Cytokines Online Pathfinder Encyclopedia | General |
| Couples Overcoming PTSD Everyday | General |
| Currency Overprinting Processing Equipment | General |
| Coalition Of Progressive Electors | General |
| Client Orientated Provider Efficient | General |
| Challenging Outdoor Physical Encounters | General |
| Congregations Organized for Prophetic Engagement | General |
| Caring Over Peoples Emotions | General |
| Client Oriented And Provider Efficient | General |
| Cooperative Outdoor Program Experience | General |
| Crippled Old People Exempt | General |
| Conversations On Personal Experiences | General |
| Creating Opportunities for Personal Empowerment | General |
| Construction Occupancy Protection Exposure | General |
| A Compulsive Obsessive Personal Evaluation | General |
| Communications Opportunity, Promotion and Enhancement | General |
| Club Oficial Porsche Espana | General |
| Council of Protocol Executives | Governmental |
| Community Oriented Police Enforcement | Governmental |
| Coordination Of Probation Enforcement | Governmental |
| Congregation Offender Partnership Enterprise | Governmental |
| Community Outreach Prison Experience | Governmental |
| Criminal Offense And Penalty Enforcement | Governmental |
| Consulting Organizing Planning And Effecting | Governmental |
| Council Of Pacific Education | Governmental |
| Cadena de Ondas Populares Españoles | International |
| Cyclophosphamide, Oncovin, Platinol, Etoposide | Medical |
| Chronic obstructive pulmonary emphysema | Medical |
| Council on Optometric Practitioner Education | Medical |
| Calendar of Premenstrual syndrome Experiences | Medical |
| Center for Oncology Psychology Excellence | Medical |
| Center Of Prevention Evaluation | Medical |
| Center Of Prevention and Evaluation | Medical |
| Coalition On Psychiatric Emergencies | Medical |
| Client Oriented Provider Efficient | Networking |
| Children Of Prisoners Europe | Regional |
| Canadian Office and Professional Employees | Regional |
| Challenging Outdoor Personnel Experience | Sports |
