| OSSINING LIMITED | Private company limited by shares | Dissolved |
| ITALY OSSLUN INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| OSSO & COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSSO LIMITED | Private company limited by shares | Live |
| OSSO BATHROOM TECH LIMITED | Private company limited by shares | Live |
| OSSO SANITARY WARE (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| OSSOTECH LIMITED | Private company limited by shares | Live |
| OssPage Company Limited | Private company limited by shares | Live |
| OssPoly Limited | Private company limited by shares | Live |
| OSSSID Studio Limited | | Live |
| OSST PU TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Osstar Optoelectronics Co., Limited | Private company limited by shares | Live |
| OSSY LIMITED | Private company limited by shares | Live |
| OSSYANFILM LIMITED | Private company limited by shares | Dissolved |
| OSTACA INDUSTRY & TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSTADI TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| OSTAFER LIMITED | Private company limited by shares | Dissolved |
| Ostanern International Limited | Private company limited by shares | Dissolved |
| OSTANI LIMITED | Private company limited by shares | Dissolved |
| OSTAR LIMITED | | Live |
| OSTARA COMPANY LIMITED | | Live |
| OSTAS LIMITED | Private company limited by shares | Dissolved |
| STAIB OSTASIEN COMPANY LIMITED | Private company limited by shares | Live |
| OSTBAHN COMPANY LIMITED | Private company limited by shares | Live |
| OSTBAHN TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| O.S.T.C. LIMITED | Private company limited by shares | Dissolved |
| OST.com Limited | Private company limited by shares | Live |
| OSTCRAFT LIMITED | Private company limited by shares | Live |
| oste trading Limited | | Live |
| OSTEAGE LIMITED | Private company limited by shares | Dissolved |
| OSTEC LIMITED | Private company limited by shares | Live |
| OsTech Limited | Private company limited by shares | Live |
| CHINA OSTECH INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSTEEN INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| OSTEN LIMITED | Private company limited by shares | Dissolved |
| OSTEN C LIMITED | | Live |
| OSTEND LIMITED | Private company limited by shares | Dissolved |
| OSTEND LIMITED | Private company limited by shares | Live |
| OSTEND INVESTMENT LIMITED | Private company limited by shares | Live |
| OSTENDIC LIMITED | Private company limited by shares | Dissolved |
| OSTENDO LIMITED | Private company limited by shares | Live |
| OSTENTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| osteoAI Limited | | Live |
| CHINA OSTEOARTHROPATHY REHABILITATION GUIDANCE CENTER LIMITED | Private company limited by shares | Live |
| OsteoAS Limited | Private company limited by shares | Live |
| OSTEOCARE LIMITED | Private company limited by shares | Live |
| OsteoDetect Co. Limited | | Live |
| Osteopathic Healthcare Limited | Private company limited by shares | Dissolved |
| TAO Osteopathy Limited | | Live |
| Sosa Osteopathy Centre Limited | Private company limited by shares | Live |
| Asia Pacific Consortium on Osteoporosis HK Limited | 擔保有限公司 | Live |
| ASIAN ASSOCIATION FOR DYNAMIC OSTEOSYNTHESIS | Company limited by guarantee | Live |
| OSTER LIMITED | Private company limited by shares | Live |
| HK OSTER CO ., LIMITED | Private company limited by shares | Live |
| OSTER (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSTER INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| KOREA OSTER TRADING LIMITED | Private company limited by shares | Live |
| LITONG OSTER ENTERPRISES LIMITED | Private company limited by shares | Live |
| OSTERBERG SERVICE AND TRADING HONG KONG LIMITED | Private company limited by shares | Live |
| OSTERBURG LIMITED | Private company limited by shares | Dissolved |
| OSTERGAARD HOLDING LIMITED | Private company limited by shares | Live |
| OSTERIA LIMITED | Private company limited by shares | Live |
| OSTERMANN & CIE LIMITED | Private company limited by shares | Live |
| Ostermann Power Transmission (China) Co., Limited | Private company limited by shares | Dissolved |
| OSTERNS LIMITED | | Live |
| GRUPPE AUS OSTERREICH SA LIMITED | Private company limited by shares | Dissolved |
| Osterstroms China Limited | Private company limited by shares | Dissolved |
| OSTERSUND COMPANY LIMITED | Private company limited by shares | Dissolved |
| Ostex Industry Limited | Private company limited by shares | Live |
| OSTFLUSS COMPANY LIMITED | Private company limited by shares | Dissolved |
| OST-GLOBAL LIMITED | Private company limited by shares | Live |
| OSTHANSA LIMITED | Private company limited by shares | Live |
| OSTI Limited | Private company limited by shares | Dissolved |
| OSTIA LIMITED | Private company limited by shares | Dissolved |
| OSTIME COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSTIMPEX LIMITED | Private company limited by shares | Dissolved |
| Ostin Technology Limited | Private company limited by shares | Live |
| OSTINA LIMITED | Private company limited by shares | Dissolved |
| OSTINI COMPANY LIMITED | | Live |
| Shinboru Ostlich Global Limited | | Live |
| OSTNOR (ASIA) LIMITED | Private company limited by shares | Live |
| AUSTAL (OSTO) LIGHTING LIMITED | Private company limited by shares | Dissolved |
| OSTOBO LIMITED | Private company limited by shares | Dissolved |
| ITALY OSTOMI INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| FRANCE OSTON LIMITED | Private company limited by shares | Live |
| O-STONE CO., LIMITED | Private company limited by shares | Live |
| Ostone Trading Limited | Private company limited by shares | Live |
| OSTOR (HK) LIMITED | Private company limited by shares | Dissolved |
| OSTOR HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Ostotec Medical Limited | Private company limited by shares | Live |
| OSTOTO CO., LIMITED | Private company limited by shares | Live |
| OSTOWN INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| OSTRACK LIMITED | Private company limited by shares | Dissolved |
| Ostrades Limited | Private company limited by shares | Live |
| OSTREA DECO LIMITED | Private company limited by shares | Dissolved |
| OSTRENDERS COMPANY LIMITED | Private company limited by shares | Dissolved |
| The Ostreum Limited | | Live |
| Ostrex Commodity Limited | Private company limited by shares | Live |
| OSTREX TRADE LIMITED | Private company limited by shares | Live |
| Ostrich Company Limited | Private company limited by shares | Live |