Companies catalogue
- O&S Co., Kowloon
- O' Farm, Kwai Fong
- O'Farm, Tsing Yi
- O'Farm 綠盈坊有機店 (上環店), 上環
- O'Farm 綠盈坊有機店 (東涌逸東店), 大嶼山東涌
- O'Farm 綠盈坊有機店 (港鐵奧運站分店), Tai Kok Tsui
- O'Farm 綠盈坊有機店 (薄扶林置富分店), Pok Fu Lam
- O'Farm 綠盈坊有機店 (香港仔店), Aberdeen
- O-Mart Deli, Fanling
- O2 Cafe, Yuen Long
- OCBC Wing Hang Credit, Tai Po
- OFF-ON, Tsuen Wan
- OFGA Hong Kong, Sheung Wan
- OGAWA, Tsuen Wan
- OKAI studio (Dance, Yoga & Fitness), Tuen Mun
- OMA Eng. (HK) Ltd., Kowloon City
- OONA Medical Beauty Centre, Mong Kok
- OPA!Deli Panini & More, Tsuen Wan
- OS Plus Oyster & Steakhouse Plus Cafe, Tseung Kwan O
- OTTO Veterinary Centre, Sha Tin
- OUT OF CAFÉ, Fo Tan Sha Tin
- OZURE DESIGN LTD. 奧舒雅設計有限公司, Wan Chai
- Oakey Dokey Wine, Hong Kong
- Oasis Beauty 水磨坊, Kwun Tong
- Ocean Asia Inc Limited, Sheung Wan
- Ocean Empire, Fanling
- Ocean Restaurant, Tsing Yi
- Ocean Rich Garment Accessories Company Limited, Tsuen Wan
- Odeon Group Ltd, Kowloon Bay
- Off Limits HK, Sai Ying Pun
- Ofukuro Japanese Restaurant, Tsim Sha Tsui
- Ogilvy Group HK, Central
- Oi Tak (Sha Tin) Old People's Home Limited, City One - Shatin
- Old Fung Tea House, Yuen Long
- Old Town Tea Room, Fanling
- Olive Era, Chuk Un
- Oliver's Super Sandwiches, Sha Tin
- Oliver's Super Sandwiches, Yuen Long
- Oliver's Super Sandwiches, 屯門
- Oliver's Super Sandwiches, Tai Kok Tsui
- On Fuk Street Playground, Fanling
- On Lok Tsuen Garden, Fanling
- On Lok Tsuen Playground, Fanling
- On Ting DC, Fanling
- On on Sanatorium Company Limited, Yuen Long
- On-Street Motorcycle Parking Spaces, Yuen Long
- On-Street Motorcycle Parking Spaces, Yuen Long
- On-Street Motorcycle Parking Spaces, Sheung Shui
- On-Street Motorcycle Parking Spaces, Tai Po
- On-Street Motorcycle Parking Spaces, Hong Kong Gold Coast
- On-Street Motorcycle Parking Spaces, Shuen Wan
- On-Street Motorcycle Parking Spaces, Lei Cheng Uk
- On-Street Motorcycle Parking Spaces, Sha Tin
- On-Street Motorcycle Parking Spaces, Sham Shui Po
- On-Street Motorcycle Parking Spaces, Kowloon Tong
- On-Street Motorcycle Parking Spaces, Kowloon Tong
- On-Street Motorcycle Parking Spaces, Hammer Hill
- On-Street Motorcycle Parking Spaces, Ngau Chi Wan
- On-Street Motorcycle Parking Spaces, Kennedy Town
- On-Street Motorcycle Parking Spaces, Tsim Sha Tsui
- On-Street Motorcycle Parking Spaces, Tsim Sha Tsui
- On-Street Motorcycle Parking Spaces, Cha Liu Au
- On-Street Motorcycle Parking Spaces, Ting Kau
- On-Street Motorcycle Parking Spaces, Tsuen Wan
- One + One Bar, Sha Tin
- One Dream Plus (PARK YOHO), Kam Tin
- One Heart Wedding, Central
- One way Global Business Limited, Sheung Wan
- One-ThirtyOne, Sai Kung
- OneFitCity Hong Kong, Central
- OneHouse 搵樓易, Sha Tin
- Onion Kitchen Pub + Restaurant, 沙田大圍
- Only Cafe, Yuen Long
- Ooosh For Startups Kwun Tong, 觀塘
- Ootoya, Tsuen Wan
- Ootoya, Cheung Sha Wan
- OptiTable Technology Limited, Sha Tin
- Optical 88, Kowloon Bay
- Orange Elephant, Tai Kok Tsui
- Orient Exchange Company (HK) Limited, Sheung Shui
- Orient Exchange Company (HK) Limited, Tuen Mun
- Orient Exchange Company (HK) Limited, Tsuen Wan
- Orient Exchange Company (HK) Limited, Kowloon City
- Orient Mark Certified Public Accountants, Sha Tin
- Oriental Horizon Christian Church, Sha Tin
- Oriental Interior Design Limited, Wan Chai
- Oriental Veterinary Clinic, Yuen Long
- Origins, Causeway Bay
- Orli Coffee Works, San Po Kong
- Osprey Associates Co., Ltd., Tsim Sha Tsui
- Otaru Cafe, Fo Tan
- Otic Hearing & Speech Centre, Causeway Bay, Hong Kong
- Otic Hearing & Speech Centre, Kwun Tong, Hong Kong
- Otic Hearing & Speech Centre, Tsuen Wan, Hong Kong
- Oto Bodycare, Tsing Yi
- Ouch's Studio, Shek Lei
- Our Lady Queen of Angels Mass Centre, Cha Liu Au
- Our Lady of Maryknoll Hospital_Medicine, Chuk Un
- Ovington Holdings Company Limited, Chai Wan Kok
- Oyster & Steak House, Wang Tau Hom