| Abbreviation | Definition |
|---|---|
| PEP | Pro Essentials Property |
| PEP | Professional Event Photography |
| PEP | Prologis Employment Partnership |
| PEPSI | PepsiCo (not an acronym) |
| PERC | Paisley Enterprise Research Centre |
| PERC | Palisades Emergency Residence Corporation |
| PERC | Penobscot Energy Recovery Company |
| PERC | Pittsfield Economic Revitalization Corporation |
| PERC | Political and Economic Risk Consultancy |
| PERCS | Professional Education Resources and Conference Services |
| PERS | Protect Emergency Response Systems |
| PERT | Production Emergency Redistribution Test |
| PES | Percy Engineering Services |
| PES | Petroleum Engineering Services |
| PESCO | Peninsula Energy Services Company |
| PESS | Private Equity Software and Services |
| PETROLIBER | Ibérica de Petróleos, S. A. |
| PETROMED | Petróleos del Mediterráneo, S. A. |
| PETRONOR | Petróleos del Norte |
| PETT | Punjab Express Trave Tours |