| Abbreviation | Definition |
|---|---|
| PQD | ProQuest Digital Dissertations |
| PQD | ProQuest Guided Tour Description |
| PQE | Perfect Quest for Enlightenment |
| PQF | Premium Quality Foods |
| PQGT | Pak-Qatar General Takaful |
| PQH | Perry Quarter Horses Breeding farm |
| PQHA | Pennsylvania Quarter Horse Association |
| PQI | Paint Quality, Inc. |
| PQI | Power Quality, Inc. |
| PQI | Productivity Quality, Inc. |
| PQL | Peterborough Quality Leisure |
| PQM | Polo Queen Minchems |
| PQM | Prince Quick Mix |
| PQP | Power Quality Products |
| PQPR | Part Quality Problem Report |
| PQS | Parallel Quantum Solutions |
| PQS | Performance Quality System |
| PQS | Professional Quality Services |
| PQU | PetroQuimica Uniao |
| PQV | Paper Qualified Vision Company |