- Q LIMITED
- Q TECNHOLOGY GROUP LIMITED
- Q10 TRUST
- QANDA TECHNOLOGY LTD
- QANTAS AIRWAYS LIMITED
- QATAR TELECOM
- QATAR TELECOM
- QBE INSURANCE GROUP LIMITED
- Qbiotics
- QED OCCTECH LIMITED
- QMASTOR LIMITED
- QONNECTIS
- QR National
- QRSCIENCES HOLDINGS LIMITED
- QRXPHARMA LTD
- QUANTUM ENERGY LIMITED.
- QUANTUM RESOURCES LIMITED
- QUATTRO ASSET MANAGEMENT
- QUAY MAGNESIUM LIMITED
- QUBE LOGISTICS
- QUEBEC
- QUEENS WALK INVESTMENT
- QUEENSLAND BAUXITE LIMITED
- QUEENSLAND BIOCAPITAL FUNDS
- QUEENSLAND ELECTRICITY COMMISSION
- QUEENSLAND INDUSTRY DEVELOPMENT CORPORATION
- QUEENSLAND MINING CORPORATION LIMITED
- QUEENSLAND TREASURY CORPORATION
- QUEENSLAND TRUSTEES AND INVESTMENT LIMITED
- QUEST INVESTMENTS LIMITED
- QUEST MINERALS LIMITED
- QUEST PETROLEUM NL
- QUESTE COMMUNICATIONS LIMITED
- QUESTUS LIMITED
- QUICKFLIX LIMITED
- QUICKSTEP HOLDINGS LIMITED
- QUINTAIN ESTATES & DEVELOPMENT
- QUINTESSENTIAL RESOURCES LIMITED
- QUOIN (INT) LIMITED.
