| RONSTAR LIMITED | | Live |
| RONSTARS INSTITUTE OF SELF-ACTUALIZATION COMPANY LIMITED | Private company limited by shares | Live |
| RONSTEAD LIMITED | Private company limited by shares | Dissolved |
| RONSTON LIMITED | Private company limited by shares | Dissolved |
| RONSTON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| RONSWELL LIMITED | Private company limited by shares | Live |
| RONSY CONSULTING LIMITED | | Live |
| RONSY (CHINA) INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| Ronsycs (Hong Kong) Limited | Private company limited by shares | Live |
| Ronta Limited | Private company limited by shares | Live |
| RONTAC RESOURCES COMPANY LIMITED | Private company limited by shares | Live |
| RONTAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| RONTEC INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| RONTECH CO., LIMITED | | Live |
| RONTECH PETROLEUM (HONG KONG) LIMITED | Private company limited by shares | Live |
| RONTEX COMPANY LIMITED | Private company limited by shares | Dissolved |
| RONTEX LIMITED | Private company limited by shares | Live Commenced dormancy on 09-Mar-2004 |
| RONTEX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| RONTEX INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| RONTEX KNITTING MILL LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI RONTEX COMPANY LIMITED | Private company limited by shares | Dissolved |
| RONTGEN LIMITED | Private company limited by shares | Live |
| RONTIC INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| RONTIFF LIMITED | Private company limited by shares | Dissolved |
| RONTO LIMITED | Private company limited by shares | Live |
| RONTON LIMITED | Private company limited by shares | Live |
| RONTON INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| RONTORS LIMITED | Private company limited by shares | Live |
| RONTREE LIMITED | Private company limited by shares | Dissolved |
| RONTZ LIMITED | Private company limited by shares | Dissolved |
| RONVITAL INT'L (HONG KONG) LIMITED | Private company limited by shares | Live |
| RONWAY LIMITED | Private company limited by shares | Dissolved |
| RONWEI ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| RONY INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| RONY ELECTRONIC LIMITED | Private company limited by shares | Live |
| RONY INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| RONY SHAPE LIMITED | Private company limited by shares | Live |
| RonY Technology Limited | Private company limited by shares | Live |
| RONYES INTERNATIONAL TRADING (HK) LIMITED | Private company limited by shares | Live |
| Ronyi Limited | | Live |
| RONYO ELECTRONICS (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| RONYU ELECTRONICS INVESTMENT CO. LIMITED | Private company limited by shares | Live |
| Ronyuang Shareholding Co., Limited | Private company limited by shares | Live |
| Ronyuen Trade (HK) Limited | | Live |
| RONZ & KEEZ CO., LIMITED | Private company limited by shares | Dissolved |
| RONZ GROUP (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Ronz Technology Co., Limited | Private company limited by shares | Live |
| RONZE LIMITED | Private company limited by shares | Live |
| Norway Ronzier International Co., Limited | | Live |
| Rooamy Limited | Private company limited by shares | Live |
| ROOBO (H.K.) INTELLIGENT LIMITED | Private company limited by shares | Live |
| Roobo Holdings Limited | Private company limited by shares | Live |
| Roobo Technology & Trade Limited | Private company limited by shares | Live |
| Roocy Hong Kong Enterprise Management Limited | | Live |
| ROOCY HONG KONG LIMITED | Private company limited by shares | Live |
| ROOD LANDSCAPE ASIA LIMITED | Private company limited by shares | Dissolved |
| ROODER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ROODI LIMITED | Private company limited by shares | Dissolved |
| Sun Roof Limited | Private company limited by shares | Live |
| 310 Roof Limited | Private company limited by shares | Live |
| Art Roof Top Limited | Private company limited by shares | Live |
| Roof Company Limited | Private company limited by shares | Live |
| Roofer Properties Limited | | Live |
| ROOFINDER LIMITED | Private company limited by shares | Dissolved |
| China Solar Roofing System Group Limited | Private company limited by shares | Live |
| ROOFING FABRIC. CO., LIMITED | Private company limited by shares | Dissolved |
| SHENGFA ROOFING WATERPROOF ENGINEERING LIMITED | | Live |
| One Tech Roofing Engineering (HK) Limited | Private company limited by shares | Live |
| HOMEIN GREEN ROOFING MATERIAL CO., LIMITED | Private company limited by shares | Live |
| Metro Roofing Products International Limited | Private company limited by shares | Live |
| ALSYNITE ROOFING PRODUCTS (SHANGHAI) CO., LIMITED | Private company limited by shares | Dissolved |
| WEATHERWISE ROOFING AND WALLING (CHINA) LIMITED | Private company limited by shares | Dissolved |
| ROOFLAB CO., LIMITED | Private company limited by shares | Live |
| GREEN ROOFS SOLAR TECHNOLOGY CO., LIMITED | | Live |
| Roofstar Technology Company Limited | Private company limited by shares | Live |
| ROOFTOP LIMITED -THE- | Private company limited by shares | Dissolved |
| Rooftop Company Limited | Private company limited by shares | Live |
| Rooftop BIM Limited | Private company limited by shares | Live |
| Rooftop Creatives Limited | | Live |
| ROOFTOP ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ROOFTOP ENTERTAINMENT COMPANY LIMITED | Private company limited by shares | Live |
| ROOFTOP FURNITURE COMPANY LIMITED | Private company limited by shares | Live |
| Rooftop Sales HK Limited | Private company limited by shares | Live |
| Rooftops Limited | Private company limited by shares | Live |
| ROOGEE LIMITED | Private company limited by shares | Live |
| ROOH TRADING CO., LIMITED | | Live |
| HONGKONG ROOH LIMITED | Private company limited by shares | Live |
| Rooha (China) Group Limited | Private company limited by shares | Live |
| ROOIBOS ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| E&R South African Rooibos Tea Limited | | Live |
| Rooji Limited | Private company limited by shares | Live |
| ROOK GROUP OF COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROOKA LIMITED | Private company limited by shares | Dissolved |
| ROOKA LIMITED | Private company limited by shares | Live |
| ROOKE & COMPANY LIMITED | Private company limited by shares | Dissolved |
| WARREN ROOKE LIMITED | Private company limited by shares | Dissolved |
| ROOKERIES LIMITED | Private company limited by shares | Dissolved |
| ROOKFIELD COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROOKIE HK LIMITED | Private company limited by shares | Live |
| ROOKIE COMPANY LIMITED | Private company limited by shares | Live |