| YIXIONG OPTOELECTRONICS TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| YOULINE OPTOELECTRONICS TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| XUN TENG OPTOELECTRONICS (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| HK Tingliang Optoelectronics Limited | Private company limited by shares | Live |
| TOPS OPTOELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| Tri-Color Optoelectronics Co., Limited | Private company limited by shares | Live |
| TRULY OPTO-ELECTRONICS LIMITED | Private company limited by shares | Live |
| Shenzhen Type Optoelectronics Co., Limited | Private company limited by shares | Live |
| UNI-TOYO OPTOELECTRONICS LIMITED | Private company limited by shares | Live |
| VITOP OPTOELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| WAITRONY OPTOELECTRONICS LIMITED | Private company limited by shares | Live |
| WUXI HUIMING OPTOELECTRONICS FACTORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK XINQIDIAN OPTOELECTRONICS LIMITED | Private company limited by shares | Live |
| XINQIDIAN OPTOELECTRONICS LIMITED | Private company limited by shares | Live |
| NICE YOUNG OPTOELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| YUJING OPTOELECTRONICS LIMITED | Private company limited by shares | Live |
| ZHEJIANG LEDISON OPTOELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| OptoFem Tech. Limited | Private company limited by shares | Live |
| Optofrequency Scientific Company Limited | Private company limited by shares | Live |
| OptoFuture Tech Co., Limited | | Live |
| OPTOGETHER LIMITED | Private company limited by shares | Live |
| Optogo Limited | Private company limited by shares | Live |
| OPTO-ist Limited | Private company limited by shares | Live |
| Optokey Limited | Private company limited by shares | Live |
| OPTOLAB ASIA LIMITED | Private company limited by shares | Dissolved |
| OptoLabs Inc. Limited | Private company limited by shares | Live |
| OPTOLABS TECHNOLOGIES ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| OPTOLABS TECHNOLOGY ASIA LIMITED | Private company limited by shares | Live |
| OPTOLANE HK LIMITED | | Live |
| OPTOLEAD CO., LIMITED | Private company limited by shares | Live |
| OPTOLED LIMITED | Private company limited by shares | Live |
| OPTOLEDER INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| OPTOLEDER TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OPTOLIFE ENTERPRISE LIMITED | Private company limited by shares | Live |
| OPTOLIGHTING LIMITED | Private company limited by shares | Live |
| HUIDUO GROUP (HK INT'L) OPTO-LIGHTING ENERGY-SAVING ENVIRONMENT TECH LIMITED | Private company limited by shares | Live |
| OPTO-LINK LIMITED | Private company limited by shares | Dissolved |
| OPTOLOGICS CO., LIMITED | Private company limited by shares | Live |
| OPTOM LIMITED | Private company limited by shares | Dissolved |
| Kitay Optom Limited | Private company limited by shares | Live |
| OPTOMA (CHINA & HK) LIMITED | Private company limited by shares | Live |
| OPTOMECH ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN ALDER OPTOMECHANICAL TECHNOLOGY CO LIMITED | Private company limited by shares | Live |
| OPTOMED LIMITED | Private company limited by shares | Dissolved |
| TKO OPTO-MEDICAL LIMITED | Private company limited by shares | Dissolved |
| ISIGHT OPTOMETRIC RESEARCH CENTER LIMITED | | Live |
| HD OPTOMETRIC CENTRE LIMITED | Private company limited by shares | Live |
| EK Optometric Centre Limited | Private company limited by shares | Live |
| CHARMING OPTOMETRIC CENTRE LIMITED | Private company limited by shares | Live |
| SMART CHOICE OPTOMETRIC CENTRE LIMITED | Private company limited by shares | Live |
| OPTIMIZ OPTOMETRIC CLINIC LIMITED | Private company limited by shares | Live |
| BEST OPTOMETRIC CONSULTANTS LIMITED | Private company limited by shares | Live |
| HONG KONG OPTOMETRIC CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| ASIA PACIFIC OPTOMETRIC RESEARCH CONSULTANTS LIMITED | Private company limited by shares | Live |
| OPTOMETRIC DEVELOPMENT LIMITED | Private company limited by shares | Live |
| OPTOMETRIC DEVELOPMENT (ASIA) LIMITED | Private company limited by shares | Dissolved |
| ELITE OPTOMETRIC LIMITED | Private company limited by shares | Live |
| F.C. AND ASSOCIATES OPTOMETRIC CENTRE LIMITED | Private company limited by shares | Dissolved |
| OPTOMETRIC PRACTITIONERS (H.K.) LIMITED | Private company limited by shares | Live |
| HONG KONG OPTOMETRIC ASSOCIATION, LIMITED -THE- | Company limited by guarantee | Live |
| LANDY CHINA OPTOMETRIC CONSULTATION AND MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| Lumic Optometric Limited | Private company limited by shares | Live |
| OCULAR OPTOMETRIC PRACTICE LIMITED -THE- | Private company limited by shares | Dissolved |
| POLY OPTOMETRIC CENTRE LIMITED | Private company limited by shares | Live |
| SAMUEL T. W. HUI OPTOMETRIC CENTRE LIMITED | Private company limited by shares | Live |
| 20/20 OPTOMETRIC SERVICES LIMITED | Private company limited by shares | Live |
| HONG KONG OPTOMETRIC SERVICES LIMITED | Private company limited by shares | Live |
| USA US-PUPIL OPTOMETRIC TECHNOLOGY LIMITED | Private company limited by shares | Live |
| PRO VISION OPTOMETRIC CENTRE LIMITED | Private company limited by shares | Live |
| VISION OPTOMETRIC CENTRE LIMITED | Private company limited by shares | Live |
| SMART VISION OPTOMETRIC CENTRE LIMITED | Private company limited by shares | Live |
| ASIAN OPTOMETRIST ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| OPTOMETRIST CHAN & PARTNERS LIMITED | Private company limited by shares | Live |
| EYECHOICE OPTOMETRIST CENTER LIMITED | Private company limited by shares | Live |
| The Hong Kong Optometrist Consultancy Limited | | Live |
| LONDON OPTOMETRIST COMPANY LIMITED | Private company limited by shares | Dissolved |
| LUCIA SAN OPTOMETRIST LIMITED | Private company limited by shares | Live |
| O-PS OPTOMETRIST LIMITED | Private company limited by shares | Live |
| ULRICA LAI OPTOMETRIST LIMITED | Private company limited by shares | Live |
| STANDARD OPTOMETRISTS CENTRE LIMITED | Private company limited by shares | Dissolved |
| HK DAGUANGMING OPTOMETRISTS GLASSES LIMITED | Private company limited by shares | Dissolved |
| GOOD VISION OPTOMETRISTS CENTRE LIMITED | Private company limited by shares | Dissolved |
| INFINITY OPTOMETRISTS LIMITED | Private company limited by shares | Live |
| LUCIA SAN OPTOMETRISTS LIMITED | Private company limited by shares | Dissolved |
| MERRINGTON OPTOMETRISTS LIMITED | Private company limited by shares | Live Commenced dormancy on 11-Dec-1998 |
| YI OPTOMETRY LIMITED | Private company limited by shares | Live |
| CHINA ADOLESCENT OPTOMETRY AND VISION REHABILITATION RESEARCH CENTER LIMITED | Private company limited by shares | Live |
| iSight Optometry Center Limited | Private company limited by shares | Live |
| ALL IN ONE OPTOMETRY CENTRE LIMITED | Private company limited by shares | Live |
| DR. EYE OPTOMETRY CENTRE LIMITED | Private company limited by shares | Live |
| HEALTH GUARD OPTOMETRY & VISION CARE CENTRE LIMITED | Private company limited by shares | Dissolved |
| China Eye Optometry Association Limited | Private company limited by shares | Live |
| France Doctor Ming Optometry Technology Co., Limited | Private company limited by shares | Live |
| German Optometry and Ophthalmology Clinic Research Institute Co., Limited | Private company limited by shares | Live |
| YODO OPTOMETRY (HONG KONG) TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UMP EYECARE AND OPTOMETRY CENTRE LIMITED | Private company limited by shares | Live |
| EYESIGHT HONG KONG OPTOMETRY CENTER LIMITED | Private company limited by shares | Live |
| FOCUS OPTOMETRY LIMITED | Private company limited by shares | Live |
| Glorious Optometry Limited | Private company limited by shares | Live |
| EYE & HEALTH OPTOMETRY CO. LIMITED | Private company limited by shares | Live |