| Abbreviation | Definition |
|---|---|
| PSE | Product Safety Engineering, Inc. |
| PSE | Puget Sound Energy |
| PSE&G | Public Service Electric and Gas Company |
| PSEDC | PALM SPRINGS EcONOMIc DEVELOPMENT CORPORATION |
| PSEDC | Perlis State Economic Development Corporation |
| PSEDC | Punjab State Electronics Development Corporation |
| PSEG | Public Service Enterprise Group |
| PSEG | Public Service Enterprise Group (Inc.) |
| PSF | Premium Standard Farms (North Princeton, Missouri) |
| PSF | Print Service Facility |
| PSF | Professional Service Firm |
| PSF | Professional Service Firms |
| PSFI | Pilipinas Sambo Federation Inc |
| PSFI | Pinehurst Store Fixtures Inc |
| PSFI | Powertronic Systems Florida Inc |
| PSG | Personal Services Group |
| PSG | Press Syndication Group |
| PSG | Public Services Group |
| PSGL | Prima services group LTD |
| PSH | Paradigm Humidification Systems |