| Smartmy Limited | Private company limited by shares | Live |
| SmartN Limited | Private company limited by shares | Live |
| SMARTNAM TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| SMARTNESS LIMITED | Private company limited by shares | Live |
| SMARTNET LIMITED | Private company limited by shares | Live |
| Neo Smart-net Limited | Private company limited by shares | Live |
| Octopus SmartNet Global Company Limited | Private company limited by shares | Live |
| ITECH SMARTNET LIMITED | Private company limited by shares | Live |
| SMARTNET SYSTEM LIMITED | Private company limited by shares | Dissolved |
| SMARTNICE GROUP LIMITED | Private company limited by shares | Dissolved |
| SMARTNICE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SMARTNICE TRADING LIMITED | Private company limited by shares | Live |
| SMARTNLINK INDUSTRY HONG KONG LIMITED | Private company limited by shares | Live |
| SMARTO COMPANY LIMITED | Private company limited by shares | Dissolved |
| SMARTO LIMITED | | Live |
| SMARTO ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SMARTO INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| SMARTO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SMARTO DRAGON INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SMARTO INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| SMARTO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMARTO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SMARTOBJECT NETWORK LIMITED | Private company limited by shares | Live |
| SMARTOLINK CO LIMITED | Private company limited by shares | Live |
| SMARTOM (HK) TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SMARTON LIMITED | Private company limited by shares | Dissolved |
| SMARTON LIMITED | Private company limited by shares | Live |
| SMARTON WAY LIMITED | Private company limited by shares | Dissolved |
| SMARTON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SMARTON PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SMARTON RESOURCES LIMITED | Private company limited by shares | Dissolved |
| SMARTON SOLUTIONS LIMITED | Private company limited by shares | Live |
| SMARTON TRADING LIMITED | Private company limited by shares | Live |
| Smartona Limited | Private company limited by shares | Dissolved |
| SMARTONE 3G LIMITED | Private company limited by shares | Live |
| SMARTONE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SMART-ONE ELECTRONICS (HK) LIMITED | | Live |
| SMARTONE CHARITABLE FUND LIMITED | Company limited by guarantee | Live |
| SMARTONE (HK) LIMITED | Private company limited by shares | Dissolved |
| SMARTONE (HK) CO. LIMITED | Private company limited by shares | Live |
| SMARTONE INDUSTRIAL (HK) LIMITED | Private company limited by shares | Live |
| SMARTONE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMARTONE INVESTMENT MANAGEMENT CO., LIMITED | Private company limited by shares | Dissolved |
| SMARTONE PUBLISHING LIMITED | Private company limited by shares | Live |
| SMARTONE TELECOMMUNICATIONS LIMITED | Private company limited by shares | Live |
| SMARTONE TRADING LIMITED | Private company limited by shares | Live |
| SMARTONER TECHNOLOGY HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SMARTONER INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SMARTONIC LIMITED | Private company limited by shares | Live |
| SMARTOP LIMITED | Private company limited by shares | Dissolved |
| SMARTOP LIMITED | Private company limited by shares | Dissolved |
| NEW SMARTOP LIMITED | Private company limited by shares | Dissolved |
| SMARTOP LIMITED | Private company limited by shares | Live |
| SMARTOP BUSINESS LIMITED | Private company limited by shares | Live |
| SMARTOP ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SMARTOP INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMARTOP PROPERTIES LIMITED | Private company limited by shares | Live |
| SMARTOPTION LIMITED | Private company limited by shares | Live |
| SMARTOR LIMITED | Private company limited by shares | Live |
| SmartOrder Limited | Private company limited by shares | Live |
| SmartOrder Technology Limited | Private company limited by shares | Live |
| SMARTOSS HARDWARE MANUFACTURER CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Smartou Technology Co., Limited | | Live |
| SmarTouch Group Company Limited | Private company limited by shares | Live |
| SMARTOWN LIMITED | Private company limited by shares | Dissolved |
| SMARTOWN COMMUNICATION LIMITED | Private company limited by shares | Live |
| SMARTOY COMPANY LIMITED | Private company limited by shares | Live |
| SMARTPACK LIMITED | Private company limited by shares | Dissolved |
| SmartPack Limited | Private company limited by shares | Live |
| SMARTPACK SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Smartpal Limited | Private company limited by shares | Live |
| Smartpan Online Limited | Private company limited by shares | Live |
| SMARTPANDA LIMITED | Private company limited by shares | Live |
| SmartPart (HK) Limited | Private company limited by shares | Dissolved |
| Smartparts Hong Kong Limited | Private company limited by shares | Dissolved |
| Smartpets Limited | Private company limited by shares | Live |
| Smartphi (Hong Kong) Electronic Technology Limited | Private company limited by shares | Live |
| SMARTPHONE LIMITED | Private company limited by shares | Dissolved |
| SMARTPHONE LIMITED | Private company limited by shares | Live |
| SMARTPHONE TECHNOLOGY LIMITED | Private company limited by shares | Live Commenced dormancy on 21-Apr-2009 |
| AGN SMARTPHONE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Smartphone Interactive Technology Limited | Private company limited by shares | Live |
| SMARTPHONEONLINE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SMARTPHONEPAGES LIMITED | Private company limited by shares | Dissolved |
| SecureOn Smartphones Limited | Private company limited by shares | Live |
| SmartPlace Engineering Limited | | Live |
| SMARTPLAY LIMITED | Private company limited by shares | Live |
| Smartplay Toys Limited | Private company limited by shares | Live |
| SMART-PLAYER.COM LIMITED | Private company limited by shares | Dissolved |
| SMARTPLUS LIMITED | Private company limited by shares | Dissolved |
| SMARTPLUS LIMITED | Private company limited by shares | Live |
| SMARTPLUS LIMITED | Private company limited by shares | Live |
| SMARTPLUS AUTOMATION LIMITED | Private company limited by shares | Dissolved |
| SmartPlus Consulting Limited | Private company limited by shares | Live |
| SMARTPLUS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SMARTPLUS TECHNIKUM LIMITED | Private company limited by shares | Live |
| Smartpoint Limited | Private company limited by shares | Live |
| SMARTPOINT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMARTPORT LIMITED | Private company limited by shares | Live |
| KENIZAN SMARTPOWER JV LIMITED | Private company limited by shares | Dissolved |