Companies catalogue
- O'Briens Crossing, Lerderderg
- OCTANEX NL, Melbourne
- OOH LA LA NAILS & TANNING, Kallangur
- OPC Australia Pty Ltd, Altona North
- OPC Training Institute, Melbourne
- Oak Park Newsagency, Oak Park
- Oak Park Tennis Club, Oak Park
- OastlerIMAGES, Bacchus Marsh
- Obi Nails and Beauty, Park Ridge
- Occupational Therapist, North Melbourne
- Oceania Polytechnic Institute of Education, Melbourne
- Ochoteco Guitars, Salisbury
- Octagon5 Pty Ltd, Melbourne
- Office Fruit, South Kingsville
- Office for Research Ethics and Integrity, North Melbourne
- OfficeEarth - Virtual Reception Services 24/7, Melbourne
- Oh's Floor Care, Hoppers Crossing
- Ohs Taekwondo, Kingsville (Yarraville)
- Oli and Associates Consultancy, Melbourne
- Om Reiki Centre, Daylesford
- Om Vegetarian, West Melbourne
- Omni Group - Perfect Packaging Solutions, Keilor Park
- Once Upon A Bride, Kensington
- One Stop Removal Shop, Brisbane
- Onedown Health & Fitness, Essendon
- Oneofftwo Contemporary Jewellery, Nungurner
- Onsite Rental Group, Derrimut
- Ontrak Scaffolding PTY Ltd., Greenvale
- Opal Bairnsdale, Bairnsdale
- Opal Consulting Melbourne, Melbourne
- Opal Paynesville, Paynesville
- Open Learning Child Care & Kindergarten, Melton
- Opendi Caroline Springs, Caroline Springs
- Oporto - Highpoint, Maribyrnong
- Optimove removals, Brisbane City
- Opulent Nails, Wellington Point
- OracleCMS, West Melbourne
- Orange International College, Melbourne
- Orchestra Victoria, South Melbourne
- OrderMate - Point of Sales Systems & Solutions, Port Melbourne
- Organ's Coaches Kyneton, Kyneton
- Oriental Medicine Health Center, Cairnlea
- Ormond College, Parkville
- Orthotics Werribee, Hoppers Crossing
- Orygen Youth Health, Sunshine
- Orygen Youth Health, Footscray
- Orygen Youth Health, Parkville
- Our Haven Wildlife Shelter, Golden Beach
- Our Lady of Mount Carmel Primary School, Sunbury
- Our Lady of the Nativity School, Aberfeldie
- Our Lady's Catholic Primary School, Craigieburn
- Over 50S Insurance Agency, Melbourne
- Overseas Shipping Services PTY Ltd., Northgate
- Overwrought, Blampied
- Own Your Super, Melbourne
- Oxygen Centre, Coburg
- Oz Mex, Bairnsdale
- Oz-racing Mechanical & Engineering, Seven Hills
- OzShooting, Epping
- Ozanam Community Housing & Support, North Melbourne
- Ozford, Melbourne
- oapl Flemington, Flemington