| Quality Products, Inc. (QPDC) OTCMKTS - OTC Markets | |
| QualMark Corporation (QMRK) OTCMKTS - OTC Markets | |
| Quaint Oak Bancorp Inc (QNTO) OTCMKTS - OTC Markets | |
| Qantas Airways Limited (QAN) ASX - Australian Securities Exchange | |
| Quadrant 4 System Corp (QFOR) OTCMKTS - OTC Markets | |
| Quad Systems Corporation (QSYSQ) OTCMKTS - OTC Markets | |
| Qsound Labs Inc (USA) (QSND) OTCMKTS - OTC Markets | |
| Qingco Inc (QING) OTCMKTS - OTC Markets | |
| Quantum MRI Inc (QTMR) OTCMKTS - OTC Markets | |
| Quest Oil Corp (QOIL) OTCMKTS - OTC Markets | |
| Quest For Growth Pricaf Leuven (QGPLF) OTCMKTS - OTC Markets | |
| Quest Petroleum NL (QPTRF) OTCMKTS - OTC Markets | |
| QueryObject Systems Corp. (QOBJ) OTCMKTS - OTC Markets | |
| Queensridge Mining Resources Inc (IWAL) OTCMKTS - OTC Markets | |
| Quantumsphere Inc (QSIM) OTCMKTS - OTC Markets | |