| Rank | Abbreviation | Meaning |
|---|
| ***** | PSEM | Protocol Specification for Electronic Metering
| |
| **** | PSEM | Pays Sud et Est Meditérranée
| |
| **** | PSEM | Pharmacologically Selective Effector Module
| |
| **** | PSEM | Philippine Society of Mining Engineers
| |
| **** | PSEM | Public Sector Employment and Management
| |
| **** | PSEM | Pyrotechnic Special Effects Materials
| |
| *** | PSEM | Point Source Exposure Model
| |
| *** | PSEM | Personal Sound Exposure Meters
| |
| *** | PSEM | Philippine Society of Endocrinology and Metabolism
| |
| ** | PSEM | Perry Saint Ellen Mine
| |
| ** | PSEM | Photographic and Scientific Equipment Manufacturing
| |
| ** | PSEM | Professional Search Engine Marketer
| |
| ** | PSEM | Professional Search Engine Marketing
| |
| ** | PSEM | Peabody Saint Ellen Mine
| |
| * | PSEM | Pericom Semiconductor Corporation
| |
| * | PSEM | Penn State Earth and Mineral
| |
| * | PSEM | Pericom Semiconductor Corp (NASDAQ Stock Exchange [NASDAQ])
| |
| * | PSEM | Partial Semantics
| |
| * | PSEM | Philips Scanning Electron Microscope
| |