| Abbreviation | Definition |
|---|---|
| QACS | Quality Assurance and Control Systems Ltd |
| QAD | Quantitative Applications Division |
| QADA | QAD, Inc. Class A |
| QADB | QAD, Inc. Class B |
| QAG | Queen Anne Green townhomes |
| QAG | Qvale Automotive Group |
| QAI | Quality Associates Inc |
| QAI | Quality Associates International, Inc. |
| QAI | Quality Assurance International |
| QAL | Quality Analytical Laboratories |
| QAL | Quality Assured Label |
| QANTAS | Queensland And Northern Territory Aerial Services, Limited |
| QAO | Quality Aerobics in Oxfordshire |
| QARI | Quincy Asian Resources Inc |
| QAS | Quality Aviation Services, Inc. |
| QAS | Quick Accounting Solutions |
| QAS | QuickAddress Software |
| QASCO | Qatar Steel Company |
| QASCO | Queensland Aerial Survey Company |
| QASS | Quality Assurance Software Systems |