| Our Campus Market | Academic & Science |
| On Campus Marketing | Academic & Science |
| Organization Change Management | Business |
| Office for Coastal Management | Business |
| Origin Cargo Manager | Business |
| Online Cost Management | Business |
| Office of Contracts Management | Business |
| Order Change Management | Business |
| Original Components Manufacturer | Business |
| Organization for Competitive Markets | Business |
| Old Cider Mill | Business |
| Office of Communications and Marketing | Business |
| Oracle Certification Masters | Business |
| Office of Classroom Management | Business Management |
| Online Commerce Management | Business Management |
| Organizational Committee Member | Community |
| Outline Of Cultural Materials | Community |
| Openness Clarity And Musicality | Community |
| Online Courses Magazine | Community |
| One Click Ministry | Community |
| Ocean Chinese Mission | Community |
| On Camera Meteorologist | Community |
| Orihuela Costa Magazine | Community |
| Outils Club Moteurs | Community |
| Omaha Childrens Museum | Community |
| Omaha Conservatory of Music | Community |
| Ole Control Message | Computing |
| Omis Compliant Monitoring | Computing |
| Object Communication Model | Computing |
| Online Call Management | Computing |
| Operating Computer Module | Computing |
| Optional Component Manager | Computing |
| Oracle Content Management | Computing |
| Operation Control Manager | Computing |
| Oracle Connection Manager | Computing |
| Online Cash Management | Computing |
| Organizational Change Management | Computing |
| Outlook Customer Manager | Computing |
| Oracle Cloud Machine | Computing |
| Overrun on Compare | Computing |
| Organic Computational Matrix | Computing |
| Oracle Certified Master | Educational Degree |
| Ohio College of Massotherapy | Educational Institute |
| On Call Meteorologist | General |
| Open Cloud Mesh | General |
| One Caribbean Media | General |
| Options Compatibility Matrix | General |
| Outlook Calendar Meeting | General |
| Oxidative Coupling of Methane | General |
| Ocean Circulation Model | General |
| Office Compatibility Mode | General |
| Oil Cleaning Module | General |
| Optical Channel Monitor | General |
| Online Chllange Mode | General |
| Openness Clarity Musicality | General |
| One Chip Modulator | General |
| Occupant Classification Module | General |
| Omnibus Club Munchen | General |
| Order of Civil Merit | General |
| Okief Coshe Mang | General |
| Ownership Collection Master | General |
| Opala Clube Mairipora | General |
| Onondaga Cortland Madison | General |
| Oversea Chinese Mission | General |
| Open Cache Manager | General |
| Online Cash Manager | General |
| Ongoing Corporate Mandate | General |
| Object Content Mapping | General |
| Open Carry Movement | General |
| Onondaga-Cortland-Madison counties | Governmental |
| Office of Crisis Management | Governmental |
| Optical CounterMeasures | Governmental |
| Observatorio Ciudadano Municipal | Governmental |
| Owner Content Management | Internet |
| Outlines in Clinical Medicine | Medical |
| Oncology Care Model | Medical |
| Oil Cleansing Method | Military and Defence |
| Object-cms Mapper | Softwares |
| Organic Content Monitor | Space Science |