| Project Engineering Consultants | Academic & Science |
| Physical Electronics Conference | Academic & Science |
| Prefabricated Electrical Center | Academic & Science |
| Propeller Electronic Control | Academic & Science |
| Priyadarshini Engineering College | Academic & Science |
| Professional Engineering Consultants | Academic & Science |
| Pedernales Electric Cooperative | Academic & Science |
| Polymer Engineering Center | Academic & Science |
| People's Electric Cooperative | Academic & Science |
| Pulsed Eddy Current | Academic & Science |
| Post Education Consortium | Academic & Science |
| Periodic Error Correction | Academic & Science |
| Perfect Electrical Conductor | Academic & Science |
| Product Engineering Corps | Academic & Science |
| Pelican (ak) | Airport Code |
| Physicians Emergency Certificate | Business |
| Petrolimex Engineering Joint Stock Company | Business |
| Project Engineering Consulting | Business |
| Product Engineering Corporation | Business |
| Pacific Eye Clinic | Business |
| President's Export Council | Business |
| Process Engineering Corporation | Business |
| Parents Educating Children | Community |
| Pinnacle Education Collaborative | Community |
| Progress Education Community | Community |
| Partner Education Connection | Community |
| Parent Education Consortium | Community |
| Professional Education Committee | Community |
| previous Executive Committee | Community |
| Pro Elite Community | Community |
| Priesthood Executive Committee | Community |
| Professional Education Competencies | Community |
| Professional Educational Conference | Community |
| Presidential Exploratory Committee | Community |
| Professional Executive Committee | Community |
| Perseverance, Efficiency, Courtesy | Community |
| Plain English Campaign | Community |
| Pentecostal European Conference | Community |
| Professional Education Conference | Community |
| Primary Enterprise Controller | Computing |
| Product Engineering Code | Computing |
| Partner e-Learning Connection | Computing |
| Packet Exchange Cycle | Computing |
| Privacy and Electronic Communications | Computing |
| Playstation Emulation Cheater | Computing |
| Pondicherry Engineering College | Educational Institute |
| Perfect Electric Conductor | Electronics |
| Proximity Effect Correction | General |
| Princeton Election Consortium | General |
| Personal Extenuating Circumstances | General |
| Punjab Examination Commission | General |
| Posta Elettronica Certificata | General |
| Predicted Effect Concentration | General |
| Professional Engineers of Colorado | General |
| Proposta de Emenda Constitucional | General |
| Prediction Error Curves | General |
| Peacebuilding Evaluation Consortium | General |
| People's Emergency Center | General |
| Pressure Exchange Chamber | General |
| Personal and Extenuating Circumstances | General |
| Percutaneous Endoscopic Colostomy | General |
| Persistently Educating the Customer | General |
| Personal Effects Coverage | General |
| Pierre E Chartier | General |
| Power Electronics Carrier | General |
| Pressurized Engine Control | General |
| Porsche Enthusiasts Club | General |
| Panther Enthusiasts Club | General |
| Peel Engineering Company | General |
| Pro Evolution Cars | General |
| Personal Extended Curriculum | General |
| Public Education Commission | General |
| Primary Effort Coordinator | General |
| Perinatal Evaluation Center | General |
| Pre Existing Conditions | General |
| Project Exemption Certificates | General |
| Packard at El Camino | General |
| Personal Embroidery Card | General |
| The Picture Exchange Communication | General |
| Power and Endurance Combination | General |
| Posta Elettronica Certifcata | General |
| Pacific Endurance Championship | General |
| Porsche Experience Centre | General |
| Perodua Eco Challenge | General |
| Professional Electrical Contractor | General |
| Pakistan Engineering Council | Governmental |
| Potential Energy Curve | Governmental |
| Princeton Entrepreneurship Council | Governmental |
| Pennsylvania Environmental Council | Governmental |
| Pacific Energy Center | Governmental |
| Practical Environmental Consultants | Governmental |
| Piedmont Environmental Council | Governmental |
| Peninsula Engineers Council | Governmental |
| Predicted Environmental Concentrations | Governmental |
| Planning and Environmental Commission | Governmental |
| Predicted Environmental Concentration | Governmental |
| Planning Environmental Commission | Governmental |
| Political Emotional Citizen | Governmental |
| Peace Education Commission | Governmental |
| Potential Ecological Condition | Governmental |
| Partido Estat Catala | Governmental |
| Photo-Electric Cell | Governmental |
| PENCHARTHAL | Indian Railway Station |
| Plano Estratégico Conjunto | International |
| Picture Explanation Communication | Medical |
| Perinatal Evaluation Centre | Medical |
| Pediatric Emergency Care | Medical |
| Primary Engineering Control | Medical |
| Parallel Elastic Component | Medical |
| Pancreatic Exocrine Cells | Medical |
| Perivascular Epithelioid Cell | Medical |
| Psychiatric Emergency Center | Medical |
| Pulmonary Ejection Click | Medical |
| Program Element Code | Military and Defence |
| Professional Education Center | Military and Defence |
| Projects & Equipment Corporation Limited | Miniratna Central Public Sector Enterprise |
| Peripheral Event Controller | Networking |
| Prince Edward County | Regional |
| Pelican, Alaska USA | Regional |
