Companies catalogue
- O&H Holden, Kyogle
- O'Hazy Suzanne, Redhead
- OF Australia, Orange
- ORANGE & DISTRICT HISTORICAL SOCIETY, Orange
- OUR PLACE, Islington
- Oakwood Products, Kotara
- Oasis Kebab, Hamilton
- Oasis Turkish Pide, Hamilton
- Oasis Turkish Style Pizza, Hamilton
- Ocean Avenue 55, Anna Bay
- Ocean Grove Pavilion, Ocean Grove
- Ocean Surgical DR Paul Lloyd G Coceancig, Newcastle
- Ocean View Hotel, Dudley
- Office of Joanna Gash MP, Nowra
- Old Koonabulla Dairy, Upper Kangaroo River
- Old Redbank Farm Holiday, Molong
- Olvers Cleaning, Hepburn
- Omar by Academy, Orange
- Omnia Beauty Therapy Studio, Castlemaine
- On Track Speech Therapy, Dudley
- One Agency Brown & Reid, Toronto
- One For The Road Tours, Islington
- One Picket Fence, Newcastle East
- One Stop Homes, South Nowra
- Ophir Gold Bed and Breakfast, Orange
- Optimum Intake, Charlestown
- Oracle Advisory Group, Charlestown
- Orange Band Hall, Orange
- Orange Blossom Retreat, Kangaroo Valley
- Orange Bridge Club, Orange
- Orange Chinese cultural Centre, Orange
- Orange Christian Assembly, Orange
- Orange Christian Ministry Centre, Warrendine
- Orange City General Cemetery, Orange
- Orange City Library (part of Central West Libraries), Orange
- Orange Community Resource Organisation, Orange
- Orange Credit Union, Orange
- Orange District Girl Guides, Orange
- Orange Fibre Artists Group Inc., Orange
- Orange Harness Racing Club Ltd, Summer Hill
- Orange Medical Centre, Orange
- Orange Prayer House, Orange
- Orange Presbyterian Church, Orange
- Orange Showground, Orange
- Orange Tenpin Bowl, Orange
- Orange Veterinary Hospital, Orange
- Orange Vets- Summer Street Vet Clinic, Orange
- Orange Wedding Directory, Orange
- Orbit Australia, Hamilton South
- Orchardtown Road Family Practice, New Lambton
- Orchid Aged Care, Hamilton South
- Oregon House Kangaroo Valley, Kangaroo Valley
- Oriental Hotel, Cooks Hill
- Oriental Kitchen 東方小廚, Hamilton
- Origini Cafe, Castlemaine
- Oroton, Maribyrnong
- Osborne Community Care, Nowra
- Osborne House &Terraces Residential Care Residential Care, Nowra
- Osborne Nursing Home, Nowra
- Osborne Park Kangaroo Valley Showground, Kangaroo Valley
- Our Wedding Celebrant, Cardiff
- Oven Cleaning Newcastle, Newcastle