| Abbreviation | Definition |
|---|---|
| PWI | Preferred Warranties Inc |
| PWI | PrimeWorks Innovations |
| PWI | Pure WorldWide Internet |
| PWJC | Paine Webber Jackson Curtis |
| PWL | PeeWeeLinux |
| PWL | Pete Waterman Limited |
| PWL | Pete Waterman Ltd |
| PWM | Product Website Marketing |
| PWP | Packaging With Perfection |
| PWP | PhotoWorks Photography |
| PWP | Power Wash Products |
| PWP | Public Works Productions |
| PWP | Python Web Programming |
| PWR | Paul Weel Racing |
| PWS | Pronil Waterstopper |
| PWS | Public Waterworks Supply |
| PWSA | Prince William Sound Adventures |
| PWSS | Paulista Wall Street Suites |
| PWT | Pacific Western Technologies |
| PWT | Park World Tour |