| Portimao | Airport Code |
| Project Resource Manual | Business |
| Proteome | Business |
| Preferred Residential Management | Business |
| Personnel And Resource Management | Business |
| Provider and Resource Management | Business |
| Pollack Resource Management | Business |
| Portland Rehabilitation Management | Business |
| Person Relation Management | Business |
| Public Relations Management | Business |
| Price Risk Margin | Business |
| Primedia, Inc. | Business |
| Partner Relationship Management | Business |
| Personnel Relationship Management | Business Management |
| Prospect Relationship Management | Business Management |
| Parks and Recreation Management | Business Management |
| Product Relationship Management | Business Management |
| Product Recovery Management | Business Management |
| Patient Relationship Management | Business Management |
| Primary Relationship Management | Business Management |
| Portola Railroad Museum | Community |
| Parks Recreation and Marine | Community |
| Performance Report Messages | Computer and Networking |
| Personal Rights Management | Computing |
| Performance Reporting Message | Computing |
| Primary Palette | Computing |
| Parameter File | Computing |
| Processing Mode | Computing |
| Print Resources Manager | Computing |
| Program Resolution Monitor | Computing |
| Process Reference Model | Computing |
| Product Release Management | Computing |
| Protocol Reference Model | Computing |
| Pressure Remanent Magnetization | Earth Science |
| Parameters | File Type |
| Professional Risk Manager | General |
| Peninsula Rescue Mission | General |
| Population Refugees and Migration | General |
| Protocol Representation Model | General |
| Pleasant Ridge Montessori | General |
| Proactive Replenishment Monitor | General |
| People of Restricted Mobility | General |
| People Really Matter | General |
| Partidul Romania Mare | General |
| Professional Reference Monitor | General |
| Probabilistic Roadmap Method | General |
| Parts Reconstruction Method | General |
| Performance Reference Model | General |
| Parallel Reaction Monitoring | General |
| Persons of Reduced Mobility | General |
| Prejean Romero McGee | General |
| Plant Resource Manager | General |
| Proton Replacement Model | General |
| Pro Rally Michigan | General |
| Proposed Rulemaking | General |
| Power Ram | General |
| Pro Master | General |
| Porsche Recuperation Management | General |
| Presidential Review Memoranda | General |
| Pipe Rack Module | General |
| Patient Relationship Manager | General |
| Professional Risk Managers | General |
| Prophetical Revolution Of Minds | General |
| Person Responsible For Maintenance | General |
| Probabilistic Relational Model | General |
| Proactive Risk Manager | General |
| Profile Rank And Message | General |
| Pixies Rights Movement | General |
| Passenger with Restricted Mobility | Governmental |
| Power Recycling Mirror | Governmental |
| Parti Rakyat Malaysia | Governmental |
| Precision Runway Monitor | Governmental |
| Peoples Republic of Maryland | Governmental |
| PIRUMADARA | Indian Railway Station |
| Physical and Rehabilitation Medicine | Medical |
| Personnel Readiness Manager | Military and Defence |
| Bureau of Population, Refugees, and Migration (dos) | Military and Defence |
| Presidential Review Memorandum | Military and Defence |
| Performance Response Message | Networking |
| Process Resource Manager | Networking |
| Prime | Real Estate |
| Payload Retention Mechanism | Space Science |
| Posigrade Rocket Motor | Space Science |
| Pulse Rate Modulation | Space Science |
| Performance Report Message | Telecommunication |
