| SINGO LIMITED | Private company limited by shares | Live |
| SINGO (ASIA) LIMITED | Private company limited by shares | Live |
| SINGO ELECTRIC COMPANY LIMITED | Private company limited by shares | Live |
| SINGO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINGO TOYS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINGOF GROUP CO., LIMITED | Private company limited by shares | Live |
| SINGOKUR LIMITED | Private company limited by shares | Dissolved |
| SINGOLDEN COMPANY LIMITED | Private company limited by shares | Live |
| SINGON HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SingOn Productions Limited | Private company limited by shares | Live |
| SINGONE HK SHIPPING CO., LIMITED | Private company limited by shares | Live |
| Singone Trading Limited | | Live |
| HONG KONG SINGOO CO., LIMITED | Private company limited by shares | Live |
| Singoo Technology Limited | | Live |
| SINGOO TRADING LIMITED | Private company limited by shares | Live |
| SINGORA LIMITED | Private company limited by shares | Dissolved |
| SINGOU CO., LIMITED | Private company limited by shares | Live |
| SINGPAC FINANCE AND EQUITY CORPORATION LIMITED | Private company limited by shares | Live |
| SINGPAC INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HK Singphone Limited | Private company limited by shares | Live |
| SINGPLUS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SINGPO LIMITED | Private company limited by shares | Dissolved |
| SINGPO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINGPOINT LIMITED | Private company limited by shares | Dissolved |
| SINGPOLI LIMITED | Private company limited by shares | Dissolved |
| Singpower Electronic Technology Co., Limited | Private company limited by shares | Live |
| SingPro Limited | Private company limited by shares | Live |
| SingQueen Limited | | Live |
| SINGR MUSIC PRODUCTION LIMITED | Private company limited by shares | Live |
| SINGRA TECHNOLOGY (HK) CO., LIMITED | | Live |
| SINGRAND INTERNATIONAL (H.K) CO., LIMITED | Private company limited by shares | Live |
| Singraphus HK Limited | Private company limited by shares | Live |
| HONGKONG SINGRI TRADE CO., LIMITED | Private company limited by shares | Live |
| SINGRICK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINGRIGHT ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| Singron International (HK) Co., Limited | | Live |
| WENZHOU SING-RUI INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| SINGRY INTERNATIONAL GROUP (H.K.) LIMITED | Private company limited by shares | Live |
| SING'S COMPANY LIMITED | Private company limited by shares | Live |
| Win Sing's Company Limited | Private company limited by shares | Live |
| Sing's Engineering Design Company Limited | | Live |
| SING'S REFRIGERATION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINGS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Sing's Production Company Limited | Private company limited by shares | Live |
| RICHIE SINGS LIMITED | Private company limited by shares | Dissolved |
| SINGS TRADING AND COMPANY LIMITED | Private company limited by shares | Live |
| SINGS WORLD LIMITED | Private company limited by shares | Live |
| SINGSAI GWOKJAM TRADING LIMITED | Private company limited by shares | Live |
| SINGSAM COMPANY LIMITED | Private company limited by shares | Dissolved |
| Singseng Technology Co., Limited | Private company limited by shares | Live |
| HONG KONG SINGSHJAY GROUP GARMENTS LIMITED | Private company limited by shares | Dissolved |
| SING-SIGNET LIMITED | Private company limited by shares | Live |
| Singsin Company Limited | Private company limited by shares | Live |
| SINGSING ASIA LIMITED | | Live |
| SingSing English Company Limited | Private company limited by shares | Live |
| SINGSINGKIDS COMPANY LIMITED | | Live |
| SINGSON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINGSON RUBBER INDUSTRIAL GROUP CO., LIMITED | Private company limited by shares | Live |
| SINGSOU CO., LIMITED | | Live |
| SINGSTAR (HK) COMPANY LIMITED | Private company limited by shares | Live |
| SINGSTAR TECHNOLOGY LIMITED | | Live |
| SINGSTAR ELECTRONIC TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SINGSTAR TECHNOLOGY (INTERNATIONAL) TRADING LIMITED | Private company limited by shares | Live |
| TAK SING-STEELS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINGSUN COMPANY LIMITED | Private company limited by shares | Live |
| SINGSUN TRADE CO., LIMITED | Private company limited by shares | Live |
| Singsunled Co., Limited | Private company limited by shares | Live |
| SINGTAI LIMITED | Private company limited by shares | Dissolved |
| SINGTAIJIT (HK) TECHNOLOGY LIMITED | | Live |
| Singtao Basketball Training Company Limited | Private company limited by shares | Live |
| SINGTAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINGTEC LIMITED | Private company limited by shares | Live |
| SINGTEC INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |
| SINGTEC SCIENCE TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Singtech Enterprise Company Limited | | Live |
| SINGTECT INVESTMENT INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Singtek Technology (HK) Co., Limited | Private company limited by shares | Live |
| SINGTEX LIMITED | Private company limited by shares | Dissolved |
| SINGTEX ENTERPRISE (CHINA) LIMITED | Private company limited by shares | Dissolved |
| Singtex Trading Limited | Private company limited by shares | Live |
| SINGTEX YARN LIMITED | Private company limited by shares | Dissolved |
| SINGTHO RESOURCES LIMITED | Private company limited by shares | Live |
| SINGTHONG (HK) LIMITED | Private company limited by shares | Dissolved |
| Singto Technology (HK) Co., Limited | Private company limited by shares | Live |
| SINGTO INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| SINGTO TRADING LIMITED | Private company limited by shares | Live |
| SINGTON LIMITED | Private company limited by shares | Dissolved |
| SINGTON TIN BOX LIMITED | Private company limited by shares | Live Commenced dormancy on 17-Mar-2010 |
| Sington Cans Limited | Private company limited by shares | Live |
| Singtone Telecommunication Trading Limited | Private company limited by shares | Live |
| HK SingTown Technology Co., Limited | Private company limited by shares | Live |
| Singtrend Limited | | Live |
| Singtuit Limited | Private company limited by shares | Live |
| Singuard Limited | | Live |
| SINGULAR LIMITED | Private company limited by shares | Dissolved |
| Singular 9 Limited | | Live |
| Singularads Limited | | Live |
| SingularDance Limited | | Live |
| SingularDTV Hongkong Limited | Private company limited by shares | Live |
| Singularister Limited | | Live |