| Abbreviation | Definition |
|---|---|
| QAS-S | Quick Accounting Solutions - Seattle |
| QAU | Quality Aerobics in Uxbridge |
| QAV | Quantum Audio Video |
| QAW | Quality Automotive Warehouse |
| QB | Quanto Basta |
| QB | Quotation Board |
| QBA | Quality Bakers of America, Inc. |
| QBAK | Qualstar Corporation (de-listed) |
| QBC | Quality Bearings and Components |
| QBC | Quality Beverage Company |
| QBC | Quantum Beauty Company |
| QBC | QuarterBack Club |
| QBC | Quoc Bao Company, Ltd. |
| QBE | Queensland Bankers Equity |
| QBG | Queensland Bookbinders Guild |
| QBG | Qurum Business Group |
| QBH | Quality Bodybuilding in Hull |
| QBH | Quality Built Homes, Inc. |
| QBH | Queens Bridge Hotel |
| QBH | Queensland Bulk Handling |