| OSIN COMPANY LIMITED | | Live |
| OSIN INVESTMENTS CO., LIMITED | Private company limited by shares | Dissolved |
| OSION INTERNATIONAL GROUP CO., LIMITED | Private company limited by shares | Live |
| Osion International Limited | | Live |
| OSION TRADING COMPANY LIMITED | | Live |
| O-SIP LIMITED | Private company limited by shares | Live |
| OSIPAI TECHNOLOGY LIMITED | Private company limited by shares | Live |
| OSIPTELL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OSIR COMPANY LIMITED | Private company limited by shares | Live |
| OSIRI Limited | Private company limited by shares | Dissolved |
| OSIRIOS LIMITED | | Live |
| Osiris Limited | Private company limited by shares | Live |
| OSIRIS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OSIRIS RESEARCH LIMITED | Private company limited by shares | Dissolved |
| OSIRIS SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSIRIS TOBACCO COMPANY LIMITED | Private company limited by shares | Live |
| OSISS LIMITED | Private company limited by shares | Live |
| OSISS HOLDINGS COMPANY LIMITED | Private company limited by shares | Live |
| OSITO LIMITED | Private company limited by shares | Live |
| OSITV LIMITED | Private company limited by shares | Live |
| Osiya Consultancy Limited | Private company limited by shares | Live |
| ORDER OF MALTA O.S.J. LIMITED | Private company limited by shares | Live |
| HONGKONG OSJER INDUSTRIAL GROUP LIMITED | Private company limited by shares | Dissolved |
| O.S.K. (Asia) Company Limited | Private company limited by shares | Live |
| Oskanova Group Limited | Private company limited by shares | Live |
| OSKAR LIMITED | Private company limited by shares | Live |
| OSKAR TEX LIMITED | Private company limited by shares | Live |
| USA GOLD OSKAR FASHION LIMITED | Private company limited by shares | Dissolved |
| OSKAR INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| OSKAR INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| WEIHAI OSKAR OUTDOORS PRODUCT CO., LIMITED | Private company limited by shares | Live |
| Oskar Star Limited | Private company limited by shares | Live |
| OSKARO LIMITED | | Live |
| OSKARS Technology Co., Limited | | Live |
| FRANCE OSKATIE SHARES LIMITED | Private company limited by shares | Live |
| OSKE LIMITED | | Live |
| OSKGR Co., Limited | Private company limited by shares | Live |
| LANGFANG OSKING BUSINESS CO., LIMITED | Private company limited by shares | Live |
| OSKKAR LIMITED | Private company limited by shares | Live |
| SHENZHEN OSKO TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OSKO FAMILY WINES LIMITED | Private company limited by shares | Live |
| O'SKY LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Jun-2015 |
| O'SKY ENTERTAINMENT COMPANY LIMITED | Private company limited by shares | Live |
| Oslam Industrial and Commercial Co., Limited | Private company limited by shares | Live |
| OSLAND COMPANY LIMITED | Private company limited by shares | Live |
| Oslanmu Co., Limited | Private company limited by shares | Live |
| OSLEAD LIMITED | Private company limited by shares | Dissolved |
| OSLEY RESOURCES LIMITED | Private company limited by shares | Live |
| OSLEY TRADING CO., LIMITED | | Live |
| OSLIM Trading Limited | Private company limited by shares | Live |
| OSLINK TECHNOLOGY CO., LIMITED | | Live |
| OSLO COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSLO COMPANY LIMITED | Private company limited by shares | Live |
| OSLO CASTLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSLO INVESTMENTS CHINA LIMITED | Private company limited by shares | Live |
| Oslo Agrochemical Co., Limited | Private company limited by shares | Live |
| OSLO FAR EAST LIMITED | Private company limited by shares | Dissolved |
| HK OSLO ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Fortune Oslo Holding Company Limited | Private company limited by shares | Live |
| OSLO HALL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OSLO HAVEN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Oslo Hygiene Solution Limited | Private company limited by shares | Live |
| Oslo Environmental Innovation Limited | Private company limited by shares | Live |
| Oslo International Limited | Private company limited by shares | Live |
| OSLO STRAND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OSLO WORLD INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OSLO LASER CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| OSLO PIER COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSLO PORT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OSLO RIDE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OSLO ROAD COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSLO SQUARE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OSLO VIEW COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSLO WELL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HK OSLONE INTERNATIONAL ILLUMINATION LIMITED | Private company limited by shares | Dissolved |
| OSLONG CO., LIMITED | Private company limited by shares | Live |
| OSLOY ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| OSMA ELEVATOR (CHINA) CO., LIMITED | Private company limited by shares | Live |
| Osma Energy Group (USA) Co., Limited | Private company limited by shares | Live |
| OSMA CONSULTING LIMITED | Private company limited by shares | Live |
| Taiwan Osma Environmental Protection Group Co., Limited | Private company limited by shares | Live |
| HONGKONG OSMA LIMITED | Private company limited by shares | Live |
| OSMA WORLDWIDE LIMITED | Private company limited by shares | Live |
| OSMAC ENGINEERS LIMITED | Private company limited by shares | Live |
| OSMAN LIMITED | Private company limited by shares | Live |
| OSMAN COMPANY LIMITED | | Live |
| OSMANAMENA GROUP OF COMPANIES LIMITED | Private company limited by shares | Live |
| Osmaniye Trading Co., Limited | | Live |
| OSMANTHUS COMPANY LIMITED | Private company limited by shares | Live |
| CL Osmanthus I Limited | Private company limited by shares | Live |
| CL Osmanthus II Limited | Private company limited by shares | Live |
| CL Osmanthus III Limited | Private company limited by shares | Live |
| Osmanthus HK Limited | | Live |
| OSMAR TRADING LIMITED | Private company limited by shares | Live |
| OSmart Cleanse Limited | | Live |
| OSMART CO., LIMITED | Private company limited by shares | Live |
| OSMART (HK) INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| OSMART INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| OSMAS BRUSH TECHNOLOGY (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UK O-SMAY WATER PROCESSING TECHNIQUE EQUIPMENTS LIMITED | Private company limited by shares | Dissolved |