| Abbreviation | Definition |
|---|---|
| QRN | Quackgrass Roots Network |
| QRR | Quality Recreation in Richmond |
| QRS | Quattro Rocket Science |
| QRT | Quality Rewards Travel |
| QRTEA | Qurate Retail Group, Inc. Class A |
| QRTEB | Qurate Retail Group, Inc. Class B |
| QRTEP | Qurate Retail Group, Inc. Preferred |
| QRX | Quality Resource Exchange |
| QSA | Quake Security Agency |
| QSA | Quality Systems Associates, Inc. |
| QSC | Quality Service Contractor |
| QSC | Queen Salote College |
| QSC | QuickSell Commerce |
| QSC | Quilter Sound Company |
| QSD | Quality System Designs |
| QSD | Quality Systems Development |
| QSDI | Queen's Seaport Development, Inc. |
| QSE | Quality Systems Engineering |
| QSE | Quality Systems Enhancement, Inc. |
| QSF | Quality Software Factory |