| Abbreviation | Definition |
|---|---|
| PHSI | Pharmacy Healthcare Solutions Inc |
| PHSI | Pure Health Solutions Inc |
| PHSL | Pharmacy Healthcare Solutions LLC |
| PHSL | Phillips Healthcare Services Ltd |
| PHT | Performance Hydraulic Technologies |
| PHV | Polish Honey Vodka, L.L.C. |
| PHWC | Paul H. Wilson Law and Consulting |
| PHWC | People's Health and Wellness Center |
| PHWS | Professional Home Warranty Services |
| PI | Patternology International |
| PI | Perfectly Incomplete |
| PI | Priceless Inn |
| PIA | Pakistan International Airlines |
| PIA | Printing Industries Association |
| PIA | Printing Industries of America |
| PIAA | Physician Insurers Association of America |
| PIAC | Pakistan International Airlines Corporation |
| PIASI | Philippine Interactive Audiotext Services Inc |
| PIBL | Pierre Insurance Brokers Ltd |
| PIBT | Pakistan International Bulk Terminal Limited |