| Abbreviation | Definition |
|---|---|
| PITA | Pennsylvania Infrastructure Technology Alliance |
| PITA | Pipeline Integrity Technology Associates |
| PITA | Professional Information Technologists Association |
| PITC | Philippine International Trading Corporation |
| PITC | Power Information Technology Company |
| PIU | Project Implementation Unit |
| PIVAC | Passport Immigration Visa And Company |
| PIVT | Player Industrial Video Technologies, Inc. |
| PIW | Paper Industry Warehouse |
| PIW | Petersburg Iron Works |
| PJA | Patrick J. Anderson Photography |
| PJA | Patrick Janikowski Architects, P.S. |
| PJAC | Philippine-Japan Active Carbon Corporation |
| PJB | Phil Jones Bass |
| PJD | Pressley Jacobs Design |
| PJET | Priority Aviation, Inc. |
| PJI | Pacific Justice, Inc. |
| PJI | Paul Johnson Illustration |
| PJI | Perry Johnson Inc |
| PJI | Perry Johnson, Inc. |