| Program And System Engineering | Academic & Science |
| Power System Engineering | Academic & Science |
| Peugeot Sport Engineering | Academic & Science |
| Paris School of Economics | Academic & Science |
| Plasma Surface Engineering | Academic & Science |
| Product Safety Electrical | Academic & Science |
| Polymer Science and Engineering | Academic & Science |
| Partner Students Employees | Academic & Science |
| Professional Services Engineering | Academic & Science |
| Psychological Stress Evaluation | Academic & Science |
| Pre Study Environment | Academic & Science |
| Pennsylvania State University, Erie | Academic & Science |
| Planed Square Edge | Academic & Science |
| Post Scarcity Economy | Academic & Science |
| Population Sciences and Epidemiology | Academic & Science |
| Physics For Scientists And Engineers | Academic & Science |
| Problem Solving Environment | Academic & Science |
| Producer Support Estimate | Accounts and Finance |
| Ponce | Airport Code |
| Public sector entities | Business |
| Production Subsidy Equivalent | Business |
| Puget Sound Energy | Business |
| Pittsburgh Social Exchange | Business |
| Professional Simulation Engineer | Business |
| Praktikum Software Engineering | Business |
| Plain Small End | Business |
| Promotion Of Special Events | Business |
| Parma School Employees Credit Union | Business |
| Product Safety Engineering, Inc. | Business |
| Personal Social Education | Community |
| Pysical Sex Education | Community |
| Personal Social Of Education | Community |
| Post Secondary Education | Community |
| PSE School of Enigmatics | Community |
| Personal And Social Education | Community |
| Parma School Employees | Community |
| Pidgen Sign English | Community |
| Power Source Element | Computer and Networking |
| Power Sourcing Equipment | Computer and Networking |
| Page Segment | Computing |
| Personal Service Environment | Computing |
| Port Switched Ethernet | Computing |
| Positive Stuff Event | Computing |
| Pixel Shader Engine | Computing |
| Power Series Expansion | Computing |
| Page Size Extension | Computing |
| Paris Sud Est | Country Specific |
| Bitmap Graphics (ibm Printer Page Segment) | File Type |
| Pure Standing Environment | General |
| Puzzling Stack Exchange | General |
| Partnership for Southern Equity | General |
| Project Support Environment | General |
| Passive Seismic Experiment | General |
| Pressure Safety Element | General |
| Power Sending Equipment | General |
| Positive Serene Experience | General |
| Policy Systems and Environment | General |
| Power Speed Endurance | General |
| Pine Street Elementary | General |
| Pressure Safety Equipment | General |
| Personal Safety Equipment | General |
| Project Specialist Exterior | General |
| Photonic Service Engine | General |
| Pi Sigma Epsilon | General |
| Personal Search Engine | General |
| Professional Stamp Experts | General |
| Pale Soft and Exudative | General |
| Positive Safe Exemplary | General |
| Porn Star Experience | General |
| Python Servlet Engine | General |
| Pi Special Edition | General |
| Pro Sound Effects | General |
| Pneumatic System Equipment | General |
| Petter Solberg Engineering | General |
| Porsche Sport Exhaust | General |
| Passive Safety Equipment | General |
| Porsche System Engineering | General |
| Pneumatic System Electronics | General |
| Pilot Se | General |
| Phoenix Se | General |
| Pseudomonas Specific En | General |
| Personal Security Environment | General |
| Point Shoot Explode | General |
| Prospective Sales Executive | General |
| Parallel Spatially En | General |
| A Pale Soft And Erotic | General |
| Persistent Storaget Engine | General |
| Power Source Equipment | General |
| Public Sector Entrepreneur | General |
| Physiological Systems Experiment | General |
| Packet Switching Exchange | General |
| Primary Source Expander | General |
| Public Sector Enterprise | General |
| Providence Spring Elementary | General |
| Portal Systemic Encephalopathy | General |
| Pictorial Superiority Effect | General |
| Personalized Stamped Envelopes | General |
| Patient Status Engine | General |
| Private Sector Engagement | General |
| Pale Soft Exudative | General |
| Piece of Sh*t Employee | Governmental |
| Policy Systems Environmental | Governmental |
| Public School Employees | Governmental |
| Postal Support Employee | Governmental |
| Postal Support Employees | Governmental |
| Public Service Employees | Governmental |
| Program for Successful Employment | Governmental |
| Public Service Employment | Governmental |
| Pacific Stratus Energy | Governmental |
| Partners for Self Employment | Governmental |
| Public Service Equipment | Governmental |
| PUSAULI | Indian Railway Station |
| Pidgin Sign English | International |
| Parque de Sanidad del Ejército | International |
| Perfect Signed English | International |
| Pacto de Solidaridad Económica | International |
| Ponce, Puerto Rico Airport code. Mercedita Airport. | International |
| Piece of S*** Employee | Internet |
| Partner Sales Executive | Jobs |
| Pink Soft Executive | Jobs |
| Product Support Engineer | Jobs |
| Pattern Square Error | Maths |
| Parabolized Stability Equation | Maths |
| Pseudomonas Specific Enzyme | Medical |
| Physicians Scientists and Engineers | Medical |
| Paranasal Sinus Exostoses | Medical |
| Psuedomonas Specific Enzyme | Medical |
| Poor Shooting Equipment | Military and Defence |
| Pull Shoot Explode | Military and Defence |
| Programming Support Environment | Military and Defence |
| Psychological Operations Support Element | Military and Defence |
| Persistent Storage Engine | Networking |
| Ponce, Puerto Rico | Regional |
| Pidgin Signed English | Regional |
| Priest Spell Editor | Softwares |
| Photoshop Elements | Softwares |
| Payload Service Equipment | Space Science |
| Payload Servicing Equipment | Space Science |
| Payload Support Equipment | Space Science |
| Peculiar Support Equipment | Space Science |
| Pegula Sports and Entertainment | Sports |
| Precision Shooting Equipment | Sports |
| Peugeot Sport Engineered | Sports |
| Palestine Securities Exchange | Stock Exchange |
| Philippine Stock Exchange | Stock Exchange |
| Pacific Stock Exchange | Stock Exchange |
