| OCEANBOX LOGISTIC LIMITED | | Live |
| OceanBright Mechanical Int'l Group Limited | Private company limited by shares | Live |
| OCEANBURGH LIMITED | Private company limited by shares | Dissolved |
| OCEANCIEL (HONG KONG) DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| OCEANCIRCLE SHIPPING (HONGKONG) LIMITED | Private company limited by shares | Live |
| OCEANCITY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OCEANCO LIMITED | Private company limited by shares | Dissolved |
| OCEAN.COM LIMITED | Private company limited by shares | Dissolved |
| Ocean-Connect (Hong Kong) International Investment Limited | Private company limited by shares | Live |
| Oceanconnect Marine Pte Limited | Private company limited by shares | Live |
| OceanConnect Marine HK Limited | Private company limited by shares | Live |
| OCEANCORP LIMITED | Private company limited by shares | Live |
| OCEANCRETE LIMITED | Private company limited by shares | Live |
| OCEANCROSS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| OCEANCROWN TRADING LIMITED | Private company limited by shares | Dissolved |
| OCEANCYCLE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HONGKONG OCEAN-DA (INTERNATIONAL) CO., LIMITED | Private company limited by shares | Live |
| OCEANDA INVESTMENTS LIMITED | Private company limited by shares | Live |
| OCEANDALE COMPANY LIMITED | Private company limited by shares | Dissolved |
| OCEANDATA LIMITED | Private company limited by shares | Live |
| HK Oceander Limited | | Live |
| OCEANE LIMITED | | Live |
| OCEAN.E DEVELOPMENTS COMPANY LIMITED | Private company limited by shares | Live |
| Hong Kong Oceaneering Limited | Private company limited by shares | Live |
| QINGDAO PACIFIC OCEANEERING (H.K.) LIMITED | Private company limited by shares | Live |
| YUE OCEANEERING EQUIPMENT SHARE LIMITED | Private company limited by shares | Dissolved |
| OCEANERA MARKETING (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| Oceanergy Industrial Co., Limited | | Live |
| OCEANET COMPANY LIMITED | Private company limited by shares | Dissolved |
| FISHMAW OCEANET COMPANY LIMITED | Private company limited by shares | Live |
| OCEANET SYSTEM LIMITED | Private company limited by shares | Live |
| OCEANET TECHNOLOGY LIMITED | Private company limited by shares | Live |
| OCEANETIC FOODS LIMITED | Private company limited by shares | Dissolved |
| Oceanevo Global Limited | | Live |
| OCEANEX LIMITED | Private company limited by shares | Dissolved |
| OCEANFAME LIMITED | Private company limited by shares | Dissolved |
| OCEANFAME ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OCEANFAR HOTEL AMENITIES CO., LIMITED | Private company limited by shares | Live |
| Oceanfare Limited | Private company limited by shares | Dissolved |
| OCEANFEEL LIMITED | Private company limited by shares | Live |
| OCEANFIELD LIMITED | Private company limited by shares | Dissolved |
| OCEANFISH LIMITED | Private company limited by shares | Live |
| OCEANFOLKS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OCEANFORD ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| OCEANFORD (HONG KONG) ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OCEANFORD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| OCEANFORD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| OCEANFORD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| OCEANFORT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| OCEANFORT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OCEANFRESH ASIA LIMITED | Private company limited by shares | Live |
| OCEANFRONT IMP & EXP CO., LIMITED | Private company limited by shares | Live |
| Oceanfront Shipping Limited | Private company limited by shares | Live |
| Oceanfront Imp & Exp Trading Co., Limited | Private company limited by shares | Live |
| OCEANFU GROUP LIMITED | Private company limited by shares | Live |
| OCEANFULL INVESTMENTS LIMITED | Private company limited by shares | Live |
| OCEANFUND.COM LIMITED | Private company limited by shares | Live |
| OCEANGATE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GUANGZHOU OCEANGATE TRADING COMPANY LIMITED | | Live |
| OCEANGATE TRADING LIMITED | Private company limited by shares | Dissolved |
| OCEANGEARS LIMITED | Private company limited by shares | Dissolved |
| OCEAN-GO TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| OCEANGOGO COMPANY LIMITED | Private company limited by shares | Live |
| OCEANGRADE COMPANY LIMITED | Private company limited by shares | Dissolved |
| OCEANGROWING SHIPPING LIMITED | Private company limited by shares | Live |
| OceanHawk Capital Advisors Limited | Private company limited by shares | Dissolved |
| OCEANHEAD HONGKONG LIMITED | Private company limited by shares | Live |
| OCEANHEAD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Oceanhigh Limited | Private company limited by shares | Live |
| OCEANHOLIC LIMITED | Private company limited by shares | Live |
| Oceanholic (MAC) Limited | Private company limited by shares | Live |
| OCEANHOOD LIMITED | Private company limited by shares | Dissolved |
| OCEANHORSE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HK OceanHouse International Group Limited | Private company limited by shares | Live |
| OCEAN-I COMMERCE LIMITED | Private company limited by shares | Live |
| OCEAN-I CONSULTANT LIMITED | Private company limited by shares | Live |
| OCEANIA LIMITED | Private company limited by shares | Dissolved |
| LA OCEANIA LIMITED | Private company limited by shares | Live |
| Oceania Gem Limited | Private company limited by shares | Live |
| Oceania 3C Company Limited | Private company limited by shares | Live |
| Oceania Limited | | Live |
| AMEREX OCEANIA LIMITED | Private company limited by shares | Dissolved |
| OCEANIA ENTERPRISE (ASIA) LIMITED | Private company limited by shares | Live |
| Jackaroo Oceania Asia, Limited | Private company limited by shares | Dissolved |
| OCEANIA BROTHERS MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Eastern Oceania Capital II Limited | Private company limited by shares | Live |
| Eastern Oceania Capital I Limited | Private company limited by shares | Live |
| Oceania Supply Chain Limited | | Live |
| OCEANIA COMPUTER LIMITED | Private company limited by shares | Live |
| Oceania Creative Company Limited | Private company limited by shares | Live |
| OCEANIA EDUCATION CONSULTANCY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Eight Oceania Service Limited | Private company limited by shares | Live |
| OCEANIA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OCEANIA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OCEANIA ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| OCEANIA ESTATES LIMITED | Private company limited by shares | Dissolved |
| EXPLORER OCEANIA LIMITED | Private company limited by shares | Live |
| Oceania Green Limited | | Live |
| OCEANIA GROUP LIMITED | Private company limited by shares | Dissolved |
| OCEANIA GROUP LIMITED | Private company limited by shares | Live |