Companies catalogue
- O-Bank Co., Ltd., Tsim Sha Tsui
- O-Farm (老農田有機農場), Kwan Tei
- O.K. Bar, Hung Hom
- OCBC Wing Hang Bank, Mong Kok
- OCBC Wing Hang Bank (Taikoo Shing Branch), Taikoo Shing
- OCBC Wing Hang Bank Main Branch, Central
- OCBC Wing Hang Credit, Tsuen Wan
- OCBC Wing Hang Credit, Sheung Wan
- OCBC Wing Hang Credit, Central
- OCBC Wing Hang Credit, Central
- OCBC Wing Hang Credit, Ngau Tau Kok
- OCBC Wing Hang Weath Management Centre, Tai Wai
- OEDO Japanese Restaurant, North Point
- OKURA, Hong Kong
- ONE BOND STREET, Admiralty
- ONEaudio, Mong Kok
- OOCL Logistics (Asia Pacific) Limited, Kwun Tong
- OPLUS, Chai Wan
- ORI, Tuen Mun
- OX LIGHTING TECH CO.,LTD, 柴灣
- OZO Wesley Hong Kong, Wan Chai
- OZONE, Tsim Sha Tsui
- Oasis Beauty 水磨坊, Kowloon Bay
- Oasis Kai Tak, Kai Tak
- Ocean Empire, Sheung Shui
- Ocean Empire, Yuen Long
- Ocean Empire Food Shop, Kwun Tong
- Ocean Restaurant, North Point
- Ocean Swimming Pool Services Limited, Kwai Chung
- Ocean View, Ma On Shan
- Ocio, Mong Kok
- Octagon Capital Holdings Limited, Tsat Tsz Mui
- Octanius (HK) Limited, Mong Kok
- Ocvaco Electronic Ltd, Kowloon Bay
- Odeon Taiwanese Cafe, Kowloon City
- Odysseus Capital Asia Limited, 中環
- Ogier, Central
- Oi Man Estate Community Nursing Centre, Ho Man Tin
- Olala, Wan Chai
- Old Man Hot Pot, Hung Hom
- Old Town Restaurant, Central
- Olive Cafe&Bar, Tsuen Wan
- Olive Garden, Tai Kiu Tsuen
- Oliver's Super Sandwiches, 葵涌
- Olympian Integrated Medical Centre, Tai Kok Tsui
- Omtis Fine Wines (Office), Admiralty
- On Luk Street Park, Ma On Shan
- On Tai Estate, On Tai Estate
- On Tat Water Works & Electrical Engineering, Kam Tin
- On Ting Day Activity Centre & Hostel (HSMH), Tuen Mun
- On Yuen Restaurant, Yau Ma Tei
- On-Street Motorcycle Parking Spaces, Fanling
- On-Street Motorcycle Parking Spaces, Tai Po
- On-Street Motorcycle Parking Spaces, Chai Wan Kok
- On-Street Motorcycle Parking Spaces, Fanling
- On-Street Motorcycle Parking Spaces, Kwun Tong
- On-Street Motorcycle Parking Spaces, Lam Tin
- On-Street Motorcycle Parking Spaces, Hang Hau
- On-Street Motorcycle Parking Spaces, San Hui
- On-Street Motorcycle Parking Spaces, Tuen Mun
- On-Street Motorcycle Parking Spaces, Sham Shui Po
- On-Street Motorcycle Parking Spaces, Tai Kok Tsui
- One & Ownly Jewellery Store, Hung Hom
- One Bay East 分行 (One Bay East Branch) - CITIBANK HONG KONG, Ngau Tau Kok
- One Beacon Hill, Beacon Hill
- One PM Solutions Limited, Kwai Chung
- One Po., Yuen Long
- One Spine (Pain Management Center) - Chiropractor - Hong Kong : 壹醫療脊椎痛症中治療中心, Jordan
- One for Health Chiropractor, Sai Kung
- Only One Treatment Center Limited, 大埔
- Oonami Japanese Restaurant, Kennedy Town
- Open Text Inc, Wan Chai
- Opium Hong Kong, Kennedy Town
- Oplus2 (K11 Art Mall), Tsim Sha Tsui
- Oraffi Jewellery Manufacturing Ltd, Tsim Sha Tsui
- Orchid Garden Restaurant, Sha Tin
- Orchid Padaria Bakery, North Point
- Orchid Padaria Bakery, North Point
- Orchid Padaria Bakery - MTR Kowloon Tong Station 2, Kowloon Tong
- Organic Baby, Causeway Bay
- Organic Baby Shop, Mong Kok
- Orient Concept Industrial Limited, Sha Tin
- Orient Exchange Company (HK) Limited, Tsim Sha Tsui
- Orient Exchange Company (HK) Limited, Sai Kung
- Oriental Kingdom Restaurant, Tuen Mun
- Oriental Logistics 東方物流, Tsuen Wan
- Oriental Systems Co. Ltd 東方系統有限公司, Kwai Fong
- Orionx International Limited, Causeway Bay
- Osman Ramju Sadick Memorial Sports Centre, Kwai Fong
- Otanri Japanese restaurant, San Po Kong
- Ouhk - Cita Learning Centre, Kwai Chung
- Our Gallery, Wan Chai
- Our Lady of the Rosary College, Yau Yat Chuen
- Our Lady's College, Chuk Un
- Ourbaby Shop, North Point
- Outward Bound Trust of Hong Kong Limited, Sai Kung
- Ove Arup & Partners Hong Kong Ltd, Kowloon Tong
- Over The Infuence, Central District
- Overseas Dragon, Central
- Oystermine, Kowloon City