Companies catalogue
- O'Farm, Tuen Mun
- O'Farm, Tuen Mun
- O'Farm 綠盈坊有機店 (屯門卓爾廣場分店), Tuen Mun
- O'Farm 綠盈坊有機店 (屯門安定分店), Tuen Mun
- O'Farm 綠盈坊有機店 (屯門蝴蝶分店), Tuen Mun
- OBELLERY - Contemporary Jewellery Studio & Jewellery Workshop, Hong Kong
- OGAWA, Causeway Bay
- OGAWA, Tsuen Wan
- OK, Tuen Mun
- OK便利店, Tung Chung
- OK便利店, Tung Chung
- OK便利店, Tai Po
- OK便利店, Tai Po
- OK便利店NO.294, Tsing Yi
- OLEZO Design Ltd., Lo Lung Hang
- OMEGA Boutique - Causeway Bay Times Square, Causeway Bay
- OMEGA Boutique - Hong Kong International Airport, 赤鱲角
- OMEGA Boutique - IFC Mall, Central
- OMEGA Boutique - Sogo Department Store, Causeway Bay
- OMEGA Boutique - Tsim Sha Tsui 28 Canton Road, Tsim Sha Tsui
- OMEGA Boutique - Tsim Sha Tsui Canton Plaza, Tsimshatsui
- ONINE, Mong Kok
- ONNO, San Po Kong
- OOCL (HK) Limited, Wan Chai
- OSIM, 鑽石山
- OSIM, Cheung Sha Wan
- OSIM (MegaBox), Kowloon Bay
- OSIM (九龍灣德福廣場一期G40 號舖), Kowloon Bay
- OSIM (旺角MOKO), Mong Kok
- OSIM (沙田一田百貨電器部), Sha Tin
- OSIM (沙田新城市廣場6樓617號舖), Sha Tin
- OTG ONTHEGO LIMITED 創動樂有限公司, Lai Chi Kok
- OTG OnTheGo Limited, Mong Kok
- OUTPUT EXPRESS LTD.出色製作專門店有限公司, Hong Kong
- Oaktree Capital (Hong Kong) Limited, Central
- Oasis Beauty 水磨坊, Tuen Mun
- Oasis Beauty 水磨坊, Tsuen Wan
- Oasis Property Consultants Limited, Causeway Bay
- Obh Wine Limited, Tsat Tsz Mui
- Ocean Spring & Metal Manufacturing Limited, Kwai Chung
- Ocean Terminal, Tsim Sha Tsui
- Ocean Three, Wan Chai
- Ocean Three 生蠔 (Kwun Tong), Kwun Tong
- Ocean Walk, Tuen Mun
- Oceania Heights Shopping Arcade, Tuen Mun
- Office Systems Ltd, Shau Kei Wan
- Office for Fine Architecture, Tsim Sha Tsui
- Officine Panerai, Central
- Officine Panerai Hong Kong Canton Road, Tsim Sha Tsui
- Officine Panerai Hong Kong Landmark Prince's, Central
- Officine Universelle Buly Hong Kong, Central
- Ofildo Limited, Sheung Wan
- Ogilvy & Mather, Hong Kong, Central
- Oh-limited (funko pop), Tsim Sha Tsui
- Oi Man School Uniform, Ho Man Tin
- Okooko, Ap Lei Chau
- Olivia burton Hong Kong, Tsim Sha Tsui
- Omega, Chek Lap Kok
- Omicron Electronics Asia Ltd, Tsim Sha Tsui
- Omnicom Asia Pacific Limited, New York
- Omorovicza, Tsim Sha Tsui
- Omtis Fine Wines (Cellar), Hung Hom
- On Line Jewellery Manufacturer Company Limited, Hung Hom
- OnceStyle, Central
- One Advertising Ltd, Tsat Tsz Mui
- One Vegan Shop - Office only - physical shop in Yuen Long, Tuen Mun
- One2free - Causeway Bay 1, Causeway Bay
- One2free - Jordan, Yau Ma Tei
- Onion Creative Limited, Sheung Wan
- Onitsuka Tiger, Sha Tin
- Onitsuka Tiger Fashion Walk Flagship Store, Causeway Bay
- Onitsuka Tiger apm store, Kwun Tong
- Online Pedal, San Po Kong
- Open Creative Limited, Central
- Optical 2.0, Causeway Bay
- Optical 88, City One - Shatin
- Optiled Holdings Co Ltd, Wan Chai
- Organic Baby, Sha Tin
- Organic Footmark, Fanling
- Organic Nature, Sha Tin
- Orient Resources Company, Sai Ying Pun
- Orient4, Central
- Oriental Chemicals and Lab. Supplies Ltd, Tai Wai
- Oriental Watch Co. Ltd. - Central 133 Des Voeux Road Central, Central
- Oriental Watch Co. Ltd. - Kowloon Building, Yau Ma Tei
- Origins, Tsim Sha Tsui
- Origins, Tuen Mun
- Origins, Sha Tin
- Orionz Jewels, Tsim Sha Tsui
- Orrick Herrington & Sutcliffe, Central
- Oscar Ono Paris, Wan Chai
- Osim, Tai Po
- Otic Hearing & Speech Centre, Sha Tin, Hong Kong
- Otto Bock Asia Pacific Limited, Kwun Tong
- Outback Steakhouse, Kowloon Bay
- Outdoordepot, Yuen Long
- Outlook Food Store 歐陸食品, 大嶼山東涌
- Overseas Export & Import Co.,?, Un Chau
- Oxyvital International Ltd., Quarry Bay
- otaku-games.com, Cheung Sha Wan