| Abbreviation | Definition |
|---|---|
| PSPCL | Punjab State Power Corporation Ltd |
| PSPI | Potsdam Specialty Paper Inc |
| PSPI | Prefinished Staining Products Inc |
| PSPL | PC Solutions Pvt Ltd |
| PSPL | Persistent Systems Pvt Ltd |
| PSR | Phoenix Sales Recruitment |
| PSRC | Princeton Senior Resource Center |
| PSS | PenStar Systems, L. L. C. |
| PSS | Physician Sales and Service |
| PSS | Public Sector Solutions |
| PSSC | Pacific States Steel Corporation |
| PSSC | Petroleum Systems Services Corporation |
| PSSC | Psychiatric Services, SC |
| PSSC | Publishers Storage and Shipping Corp |
| PSSI | Packers Sanitation Services Inc |
| PSSI | Peninsula Sanitary Service Inc |
| PSSI | Portfolio Strategies Securities Inc |
| PSSI | Product Support Services Inc |
| PSSI | Production Satellite Services Inc |
| PSSI | Professional Systems Synergy Inc |