| O'brien Burrell & CO Pty ltd | Kogarah | 489215 |
| O'connor, Susan | Belmont | 484793 |
| O'donohue Nominees Pty. Ltd. | Colac | 239911 |
| O'keefe, Anthony John | Southport | 240546 |
| O'regan Group Pty ltd | Greenwood | 230806 |
| O'shaughnessy, Michael John | Deepdene | 489911 |
| ON Point Wealth Solutions Pty ltd | Tallebudgera | 514279 |
| ON Q Securities Pty ltd | South Perth | 226367 |
| OP Smsf Services Pty ltd | Eastwood | 489228 |
| OX Securities Pty ltd | Chatswood | 438402 |
| OZ Direct Mortgages Pty ltd | Hectorville | 518762 |
| Oak Advisory Group Pty ltd | Subiaco | 530257 |
| Oak Capital Mortgage Fund Limited | Southport | 438659 |
| Oak Capital Wholesale Fund Pty ltd | Melbourne | 506255 |
| Oak Hill Advisors (australia) Pty ltd | Melbourne | 415209 |
| Oakleigh Financial Services Pty ltd | Norwood | 501454 |
| Oaktree Capital (australia) Pty Limited | Sydney | 511218 |
| Oakview Financial Pty ltd | Southport | 513068 |
| Oakwood Financial Group Pty Limited | Gosford | 255231 |
| Oakwood Lifestyle Advisers Pty ltd | Chatswood | 379049 |
| Oanda Australia Pty ltd | Sydney | 412981 |
| Oasis Fund Management Limited | Melbourne | 274331 |
| Oasis Insurance Pty ltd | Norwest | 293770 |
| Obelisk Capital Pty. Limited | Sydney | 244412 |
| Ocean Asset Management Pty. Limited | ST Ives | 340218 |
| Ocean Reach Advisory Pty ltd | Scarborough | 495039 |
| Oceanic Marine Risks Pty. Ltd. | Cannonvale | 238271 |
| Octillion Partners Pty ltd | Slacks Creek | 289621 |
| Octopus Investments Aust Pty ltd | South Yarra | 520121 |
| Odyssey Capital Administration Pty ltd | Sydney | 285413 |
| Odyssey Capital Funds Management ltd | Sydney | 297283 |
| Odyssey Equity Finance Pty. Ltd. | South Melbourne | 219431 |
| Odyssey Specialist Group Pty ltd | Teneriffe | 508797 |
| Ohm Australian Services Pty ltd | Greystanes | 487931 |
| Ohmega Australia Pty ltd | Morayfield | 488445 |
| Old Cold Gold Pty ltd | Ballarat Central | 498843 |
| Olirek Partners Pty ltd | Sydney | 474905 |
| Olive Financial Markets Pty ltd | Surfers Paradise | 390906 |
| Oliver Hume Property Funds Limited | Southbank | 247074 |
| Omakapital Pty ltd | Castle Cove | 514002 |
| Omega Financial Strategists Pty ltd | Wayville | 532064 |
| Omega Global Investors Pty ltd | Melbourne | 318125 |
| Omers Infrastructure Australia Pty Limited | Sydney | 504517 |
| Omipay Pty. Ltd. | Sydney | 495025 |
| Omni Bridgeway Investment Management Limited | Sydney | 524023 |
| Omnia Capital Partners Pty Limited | Sydney | 520383 |
| Omniport Limited | Sydney | 229846 |
| Omnium Technologies Pty ltd | Baulkham Hills | 500823 |
| On-market Bookbuilds Pty Limited | Sydney | 421535 |
| One Energy Pty ltd | West Perth | 438763 |
| One Fund Services ltd | Sydney | 493421 |
| One Funds Management Limited | Sydney | 300337 |
| One Investment Administration ltd | Sydney | 225064 |
| One Managed Investment Funds Limited | Sydney | 297042 |
| One Underwriting Pty ltd | Sydney | 236653 |
| One Wholesale Fund Services ltd | Sydney | 426503 |
| One26 Pty ltd | Clayfield | 329408 |
| Onefocus Financial Services Pty ltd | Melbourne | 402304 |
| Oneill, Joseph Vincent | Cheltenham | 226395 |
| Oneill, Patrick Joseph | Perth | 500004 |
| Onepath Custodians Pty Limited | Melbourne | 238346 |
| Onepath Funds Management Limited | Melbourne | 238342 |
| Onepath General Insurance Pty Limited | North Sydney | 288160 |
| Onepath Life Limited | North Sydney | 238341 |
| Oneventures Nominees #2 Pty ltd | Sydney | 518264 |
| Oneventures Nominees Pty Limited | Sydney | 462825 |
| Onevue Super Member Administration Pty Limited | Sydney | 241366 |
| Onevue Super Services Pty Limited | Sydney | 246883 |
| Onevue Wealth Services ltd | Sydney | 308868 |
| Online Insurance Solutions Pty ltd | East Melbourne | 241055 |
| Online Power And Gas Administration Pty ltd | Brisbane | 487372 |
| Ope Financial Services Pty Limited | Sydney | 494800 |
| Open Corp Funds Management ltd | Melbourne | 417371 |
| Open Insurance Pty ltd | Surry Hills | 451712 |
| Open Resolve Funds Management Pty Limited | Willoughby | 473786 |
| Openinvest Limited | Hawthorn | 504155 |
| Openmarkets Australia Limited | Melbourne | 246705 |
| Ophir Asset Management Pty ltd | Sydney | 420082 |
| Oppenheim Pty ltd | Sydney | 529099 |
| Opportunity International Australia Capital Management Pty ltd | Sydney | 470094 |
| Optar Pty ltd | Sydney | 487626 |
| Optimal Afsl Pty ltd | Adelaide | 431258 |
| Optimal Fund Management Pty Limited | Sydney | 247366 |
| Optimus 1 Pty ltd | Westcourt | 245456 |
| Optimus Financial Advisory Pty ltd | Subiaco | 389663 |
| Optimus Private Equity Pty ltd | Subiaco | 436292 |
| Option Funds Management Limited | Sydney | 417441 |
| Optiver Australia Pty Limited | Sydney | 244145 |
| Optus Insurance Services Pty Limited | Macquarie Park | 247379 |
| Opulen Financial Solutions Pty ltd | North Adelaide | 517131 |
| Oracle Capital Group Pty ltd | Osborne Park | 521887 |
| Oracle Funds Management Limited | Sydney | 322620 |
| Oracle Group (australia) Pty ltd | Balcatta | 363610 |
| Oracle Investment Management Pty ltd | Charlestown | 430574 |
| Oracle Wealth Advisory Pty. Ltd. | Bondi Junction | 488940 |
| Orange Credit Union Limited | Orange | 240768 |
| Orbe Solutions Pty ltd | Norwood | 507622 |
| Orbis Investment Advisory Pty Limited | Sydney | 237862 |
| Orbit Capital Pty. Ltd. | Brisbane | 230327 |
| Orbitremit Limited | Sydney | 470646 |
| Ord Minnett Limited | Sydney | 237121 |
| Ord Minnett Management Limited | Sydney | 237123 |
| Orde Capital Management Limited | Melbourne | 523150 |
| Oreana Financial Services Pty ltd | Sydney | 482234 |
| Oreon Financial Planning Pty ltd | Kent Town | 470507 |
| Origin Asset Management Limited Liability Partnership | Sydney | 524813 |
| Origin Corporate Finance Pty Limited | Sydney | 237663 |
| Origin Energy Electricity Limited | Barangaroo | 238262 |
| Origin Securities Pty Limited | Sydney | 237662 |
| Orimco Pty ltd | Mount Hawthorn | 446258 |
| Orion Capital Partners Pty Limited | Sydney | 345908 |
| Orion Resource Partners (aus) Pty ltd | Sydney | 446872 |
| Orringa Capital Partners Pty ltd | Wahroonga | 478995 |
| Orsaro Capital Pty ltd | Caulfield North | 524448 |
| Osman Insurance Brokers Pty ltd | Lindfield | 238780 |
| Ostermeyer Investment Partners Pty ltd | Adelaide | 438949 |
| Osuper Pty ltd | Toowoomba City | 488628 |
| Oti Management Pty. Ltd. | Docklands | 510646 |
| Otira Capital Pty. Ltd. | Toorak | 494127 |
| Ouf Holdings Pty ltd | Sydney | 400964 |
| Our Retirement Pty. Ltd. | Westlake | 411082 |
| Ourcrowd Australia Pty ltd | Sydney | 517755 |
| Ouson Capital Pty. Ltd. | Burwood | 508864 |
| Over Fifty Guardian Friendly Society Limited | Melbourne | 524353 |
| Oversea-chinese Banking Corporation Limited | Sydney | 237585 |
| Overseas Union Capital Pty ltd | Stanmore | 442901 |
| Ovib Pty. Ltd. | Myrtleford | 247868 |
| Ownership Matters Pty ltd | Melbourne | 423168 |
| Oxford Insurance Brokers Pty ltd | Unley | 268411 |
| Oxley Insurance Brokers Pty ltd | Port Macquarie | 240561 |
| Oxygen Global Pty ltd | Melbourne | 452187 |
| Oya Financial Services Pty ltd | Narrabeen | 421290 |
| Ozforex Limited | Sydney | 226484 |
| Ozgen Retail Pty ltd | Brisbane | 327278 |
| Ozplan Financial Services Pty ltd | Benalla | 221235 |
| Ozprop Capital Pty ltd | Broadbeach | 433227 |