| OMNITEC OVERSEAS LIMITED | Private company limited by shares | Dissolved |
| OMNITECH LIMITED | Private company limited by shares | Dissolved |
| OMNITECH LIMITED | Private company limited by shares | Live |
| OMNITEK LIMITED | Private company limited by shares | Dissolved |
| OMNITEL SOLUTIONS LIMITED | Private company limited by shares | Live |
| OMNITEX LIMITED | Private company limited by shares | Dissolved |
| OMNITEX COMPANY LIMITED | Private company limited by shares | Dissolved |
| OMNITEX HK LIMITED | Private company limited by shares | Live |
| Omnitex Universal Limited | Private company limited by shares | Live |
| OMNITOMO LIMITED | Private company limited by shares | Live |
| OMNITRAC (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Omnitrades Limited | Private company limited by shares | Live |
| OMNI-TRAINING LIMITED | Private company limited by shares | Dissolved |
| OMNITRAK MARKETING CORPORATION OF ASIA LIMITED | Private company limited by shares | Dissolved |
| OMNITRON LIMITED | Private company limited by shares | Dissolved |
| Omnitrouw Limited | Private company limited by shares | Live |
| OMNITURE HK LIMITED | Private company limited by shares | Dissolved |
| Omniture International Group Co., Limited | Private company limited by shares | Live Commenced dormancy on 08-Mar-2016 |
| OMNIUM X LIMITED | Private company limited by shares | Dissolved |
| Omnium Limited | Private company limited by shares | Live |
| OMNIVENTURE COMPANY LIMITED | Private company limited by shares | Live |
| Omniverse Developments Limited | | Live |
| OMNIVEST ASIA LIMITED | Private company limited by shares | Dissolved |
| Omnivets Limited | | Live |
| Omniview Limited | Private company limited by shares | Live |
| Omniview Capital Limited | | Live |
| OmniVoltaic Power Company Limited | Private company limited by shares | Live |
| OMNIVOR LIMITED | Private company limited by shares | Dissolved |
| OMNIVOROUS LIMITED | Private company limited by shares | Dissolved |
| OMNIWAY LIMITED | Private company limited by shares | Dissolved |
| OmniWe Limited | Private company limited by shares | Live |
| OMNIWELL COMPANY LIMITED | Private company limited by shares | Live Ceased dormancy on 28-Apr-2014 |
| Omniwerk Limited | Private company limited by shares | Live |
| OMNIWHERE.COM LIMITED | Private company limited by shares | Dissolved |
| Hong Kong OmniWin Limited | Private company limited by shares | Live |
| OMNIWIZ LIMITED | Private company limited by shares | Live |
| OMNIWORLD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Omniwriting Limited | Private company limited by shares | Live |
| OMNIX CAPITAL LIMITED | Private company limited by shares | Live |
| OMNOLOGY LIMITED | Private company limited by shares | Live Ceased dormancy on 22-Aug-2014 |
| OMNOMNOM LIMITED | Private company limited by shares | Live |
| Omobi Limited | | Live |
| OMOBI TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONGKONG OMOI INT'L TRADING CO., LIMITED | Private company limited by shares | Live |
| Omoikiri Group Company Limited | Private company limited by shares | Live |
| OMOKO INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| OMOKO TRADING LIMITED | Private company limited by shares | Dissolved |
| Omololu Capital Limited | Private company limited by shares | Live |
| Studio OMOM Art LIMITED | Private company limited by shares | Live |
| OMOMO CONCEPT LIMITED | Private company limited by shares | Dissolved |
| OMoney Co., Limited | Private company limited by shares | Live |
| HONG KONG OMONLY FASHION LIMITED | Private company limited by shares | Dissolved |
| O-MOON COMPANY LIMITED | | Live |
| Omorfia Limited | Private company limited by shares | Live |
| CHINA OMORI CORPORATION LIMITED | Private company limited by shares | Dissolved |
| OMORI CO., (CHINA) LIMITED | Private company limited by shares | Dissolved |
| EVER GAIN & OMORI FORWARDING LIMITED | Private company limited by shares | Live |
| OMORI ENTERPRISES (HK) LIMITED | Private company limited by shares | Dissolved |
| OMORI (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| OMORI INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| OMORI METER (H.K.) LIMITED | Private company limited by shares | Dissolved |
| OMORO LIMITED | Private company limited by shares | Dissolved |
| OMOS TECH LIMITED | | Live |
| GUANGZHOU OMOTIVO IMPORT & EXPORT CO., LIMITED | Private company limited by shares | Live |
| OMOTO LIMITED | Private company limited by shares | Dissolved |
| OMOTO CORPORATION LIMITED | Private company limited by shares | Dissolved |
| OMOTO FOODS COMPANY LIMITED | Private company limited by shares | Dissolved |
| OMOTO INTERNATIONAL INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| OMOY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| OMOY INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| OMPA LIMITED | Private company limited by shares | Live |
| OMPANYC LIMITED | Private company limited by shares | Live |
| Omphalos HK Limited | Private company limited by shares | Live |
| Omprs Group Co., Limited | Private company limited by shares | Live |
| STEVECON (OMR) LIMITED | Private company limited by shares | Dissolved |
| OMRI GROUP LIMITED | Private company limited by shares | Live |
| Omrix Biopharmaceuticals (Asia) Limited | Private company limited by shares | Dissolved |
| OMRON COMPANY LIMITED | Private company limited by shares | Dissolved |
| Omron Co., Limited | | Live |
| OMRON ELECTRONICS ASIA LIMITED | Private company limited by shares | Live |
| OMRON ELECTRONICS (HONG KONG) LIMITED | Private company limited by shares | Live |
| OMRON (CHINA) GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| OMRON ELECTRICAL GROUP (CHINA) CO., LIMITED | Private company limited by shares | Dissolved |
| OMRON HEALTHCARE LIMITED | Private company limited by shares | Dissolved |
| OMRON GROUP (HK) HOLDINGS CO., LIMITED | Private company limited by shares | Dissolved |
| OMRON (HK) MEDICAL EQUIPMENT LIMITED | Private company limited by shares | Live |
| OMRON PRECISION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| OMRON AMUSEMENT HONG KONG CO., LIMITED | Private company limited by shares | Live |
| OMRON ELECTRONIC COMPONENTS (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONGKONG OMRON ELECTRIC COMPANY CO., LIMITED | Private company limited by shares | Live |
| USA OMRON MEDICINE GROUP (HK) LIMITED | Private company limited by shares | Dissolved |
| O.M.S. ORIENT CONSULTING LIMITED | Private company limited by shares | Dissolved |
| OM's Living Group Limited | | Live |
| O.M.S MANAGEMENT LIMITED | | Live |
| OMSBY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| OMSE LIMITED | Private company limited by shares | Dissolved |
| OMSI LIMITED | Private company limited by shares | Dissolved |
| OMSLUX CO., LIMITED | Private company limited by shares | Live |
| OMSSI Earth-Tech (China) Limited | Private company limited by shares | Live |
| OMTA INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |